1 00:00:29,589 --> 00:00:27,589 [Music] 2 00:00:31,750 --> 00:00:29,599 good afternoon and welcome to nasa's 3 00:00:33,750 --> 00:00:31,760 kennedy space center i'm nasa press 4 00:00:35,830 --> 00:00:33,760 secretary jackie mcginnis 5 00:00:38,069 --> 00:00:35,840 and this morning nasa waved off the 6 00:00:39,990 --> 00:00:38,079 artemis one launch attempt after teams 7 00:00:42,389 --> 00:00:40,000 encountered a liquid hydrogen lake while 8 00:00:44,869 --> 00:00:42,399 filling propellant into the core stage 9 00:00:46,389 --> 00:00:44,879 of the sls rocket unfortunately the team 10 00:00:48,790 --> 00:00:46,399 wasn't able to troubleshoot the issue 11 00:00:50,790 --> 00:00:48,800 today but to tell us more about the next 12 00:00:52,229 --> 00:00:50,800 steps nasa will take following the 13 00:00:54,229 --> 00:00:52,239 mission management team meeting this 14 00:00:56,790 --> 00:00:54,239 afternoon we have with us nasa 15 00:00:58,389 --> 00:00:56,800 administrator bill nelson 16 00:01:00,389 --> 00:00:58,399 associate administrator of the 17 00:01:02,709 --> 00:01:00,399 exploration systems development mission 18 00:01:06,149 --> 00:01:02,719 directorate jim free 19 00:01:08,310 --> 00:01:06,159 and artemis mission manager mike serafin 20 00:01:10,950 --> 00:01:08,320 first i'll hand it over to senator 21 00:01:12,390 --> 00:01:10,960 nelson for opening remarks 22 00:01:15,749 --> 00:01:12,400 well while 23 00:01:17,749 --> 00:01:15,759 we don't have the launch that we wanted 24 00:01:21,190 --> 00:01:17,759 today 25 00:01:23,749 --> 00:01:21,200 i can tell you that these teams 26 00:01:26,950 --> 00:01:23,759 know exactly what they're doing and i'm 27 00:01:28,630 --> 00:01:26,960 very proud of them 28 00:01:30,149 --> 00:01:28,640 you think back 29 00:01:31,270 --> 00:01:30,159 to previous 30 00:01:33,429 --> 00:01:31,280 space 31 00:01:36,149 --> 00:01:33,439 flights 32 00:01:36,950 --> 00:01:36,159 the shuttle was sent back 33 00:01:41,510 --> 00:01:36,960 to 34 00:01:43,590 --> 00:01:41,520 the vehicle assembly building 20 times 35 00:01:46,550 --> 00:01:43,600 i already shared with you 36 00:01:47,749 --> 00:01:46,560 my personal experience back in the early 37 00:01:50,069 --> 00:01:47,759 part of the 38 00:01:51,030 --> 00:01:50,079 space shuttle program 39 00:01:54,469 --> 00:01:51,040 of 40 00:01:58,870 --> 00:01:54,479 hoot gibson's crew having been strapped 41 00:02:00,389 --> 00:01:58,880 in ready to go and scrub four times 42 00:02:04,310 --> 00:02:00,399 with a delay 43 00:02:10,710 --> 00:02:07,749 we do not launch until 44 00:02:14,070 --> 00:02:10,720 we think it's right 45 00:02:16,710 --> 00:02:14,080 and these uh teams have 46 00:02:19,030 --> 00:02:16,720 labored over that 47 00:02:21,430 --> 00:02:19,040 and that is the conclusion that they 48 00:02:24,710 --> 00:02:21,440 came to 49 00:02:25,750 --> 00:02:24,720 so i look at this as a part of our space 50 00:02:28,229 --> 00:02:25,760 program 51 00:02:33,190 --> 00:02:28,239 of which safety 52 00:02:37,270 --> 00:02:35,110 they will tell you 53 00:02:40,630 --> 00:02:37,280 starting with jim 54 00:02:43,430 --> 00:02:40,640 they'll tell you the specific reasons 55 00:02:44,630 --> 00:02:43,440 why they decided to stand down 56 00:02:48,150 --> 00:02:44,640 and what 57 00:02:50,710 --> 00:02:48,160 they think that the future holds 58 00:02:52,949 --> 00:02:50,720 just remember we're not going to launch 59 00:02:57,910 --> 00:02:52,959 until it's right 60 00:03:01,190 --> 00:02:57,920 and that is standard operating procedure 61 00:03:02,550 --> 00:03:01,200 and will continue to be 62 00:03:05,589 --> 00:03:02,560 thank you sir 63 00:03:07,509 --> 00:03:05,599 good afternoon so absolutely i hope you 64 00:03:09,190 --> 00:03:07,519 know we're not where we want to be 65 00:03:11,350 --> 00:03:09,200 except for the vehicle's safe so we 66 00:03:13,190 --> 00:03:11,360 wanted it safe in orbit it's not there 67 00:03:15,110 --> 00:03:13,200 it's safe on the ground 68 00:03:16,790 --> 00:03:15,120 um i'm going to kind of give you the big 69 00:03:18,550 --> 00:03:16,800 picture of where we're headed with the 70 00:03:20,710 --> 00:03:18,560 launch periods 71 00:03:24,309 --> 00:03:20,720 and then i'll let mike fill you in on 72 00:03:26,630 --> 00:03:24,319 some of the things that happened today 73 00:03:29,509 --> 00:03:26,640 charlie blackwell thompson is back in 74 00:03:31,270 --> 00:03:29,519 the launch control center with her team 75 00:03:33,350 --> 00:03:31,280 working through some of the next steps 76 00:03:35,589 --> 00:03:33,360 that the mission management team asked 77 00:03:36,470 --> 00:03:35,599 her to do today 78 00:03:37,350 --> 00:03:36,480 um 79 00:03:38,149 --> 00:03:37,360 so 80 00:03:40,630 --> 00:03:38,159 we 81 00:03:43,350 --> 00:03:40,640 launched period 25 is uh definitely off 82 00:03:45,589 --> 00:03:43,360 the table we won't be launching uh you 83 00:03:46,949 --> 00:03:45,599 know this period ends on tuesday will 84 00:03:49,030 --> 00:03:46,959 not be launching 85 00:03:52,710 --> 00:03:49,040 uh in this launch period 86 00:03:55,509 --> 00:03:52,720 um launch period 26 and 27 87 00:03:59,830 --> 00:03:55,519 will really depend on the options that 88 00:04:01,910 --> 00:03:59,840 the team comes back with likely on 89 00:04:04,309 --> 00:04:01,920 or early tuesday morning and michael 90 00:04:06,869 --> 00:04:04,319 talk through those options with you 91 00:04:09,589 --> 00:04:06,879 one thing i'll point out is we 92 00:04:11,509 --> 00:04:09,599 will deconflict with crew five so there 93 00:04:13,990 --> 00:04:11,519 is an overlap with our 94 00:04:16,069 --> 00:04:14,000 next launch period and the time frame on 95 00:04:18,550 --> 00:04:16,079 crew 5 wants to go we we need to make 96 00:04:19,990 --> 00:04:18,560 sure we deconflict with them so that 97 00:04:22,390 --> 00:04:20,000 will weigh into 98 00:04:25,350 --> 00:04:22,400 into what we do 99 00:04:28,629 --> 00:04:25,360 and then as we get into launch period 27 100 00:04:31,189 --> 00:04:28,639 uh in the latter part of october 101 00:04:33,510 --> 00:04:31,199 we will be looking at a lot of things 102 00:04:35,510 --> 00:04:33,520 our limited life items 103 00:04:36,390 --> 00:04:35,520 our stay on the pad durations that we 104 00:04:38,150 --> 00:04:36,400 have 105 00:04:40,629 --> 00:04:38,160 and uh and of course we're always 106 00:04:42,310 --> 00:04:40,639 looking at at weather as a as a general 107 00:04:44,390 --> 00:04:42,320 course of action for some of the storm 108 00:04:45,990 --> 00:04:44,400 activity that can be out there 109 00:04:47,590 --> 00:04:46,000 um 110 00:04:50,469 --> 00:04:47,600 i'm sure there's going to be a question 111 00:04:52,230 --> 00:04:50,479 of are we confident right i actually 112 00:04:53,590 --> 00:04:52,240 love that question because it's like are 113 00:04:56,230 --> 00:04:53,600 you confident you were going to get out 114 00:04:58,150 --> 00:04:56,240 of bed this morning um we're we don't go 115 00:04:59,990 --> 00:04:58,160 into these tests lightly right we we 116 00:05:01,189 --> 00:05:00,000 don't just say hey we think we hope this 117 00:05:03,270 --> 00:05:01,199 is going to work 118 00:05:05,110 --> 00:05:03,280 um the confident confidence to do 119 00:05:06,870 --> 00:05:05,120 another launch attempt today was born 120 00:05:08,710 --> 00:05:06,880 out of the fact that 121 00:05:11,270 --> 00:05:08,720 we understood the hydrogen leaks that we 122 00:05:13,749 --> 00:05:11,280 had on on monday those are different 123 00:05:16,230 --> 00:05:13,759 than the leak that we had today 124 00:05:18,230 --> 00:05:16,240 um in in terms of scale one was in the 125 00:05:20,310 --> 00:05:18,240 the same place but today was a different 126 00:05:22,790 --> 00:05:20,320 signature 127 00:05:25,510 --> 00:05:22,800 and we we understood the engine issue so 128 00:05:27,029 --> 00:05:25,520 we were confident coming into today but 129 00:05:28,950 --> 00:05:27,039 as the administrator said we're not 130 00:05:30,230 --> 00:05:28,960 going to launch till we're ready which 131 00:05:31,430 --> 00:05:30,240 means we're going to step through these 132 00:05:33,990 --> 00:05:31,440 things 133 00:05:35,270 --> 00:05:34,000 there's a lot of conjecture already uh i 134 00:05:37,270 --> 00:05:35,280 i can assure you i don't know how many 135 00:05:40,390 --> 00:05:37,280 people are in that mmt room today mike 136 00:05:42,070 --> 00:05:40,400 but i don't know 100 100 plus folks most 137 00:05:43,510 --> 00:05:42,080 of them engineers everybody already 138 00:05:45,990 --> 00:05:43,520 thinking about what is the problem and 139 00:05:47,430 --> 00:05:46,000 frankly that's what happens on the loops 140 00:05:51,510 --> 00:05:47,440 when we're 141 00:05:53,670 --> 00:05:51,520 folks are giving options 142 00:05:55,830 --> 00:05:53,680 the anomaly loops are really active 143 00:05:57,590 --> 00:05:55,840 especially on this one today from from 144 00:05:59,749 --> 00:05:57,600 the time we first saw the signature all 145 00:06:01,990 --> 00:05:59,759 the way until charlie made the right 146 00:06:04,150 --> 00:06:02,000 decision which was to scrub 147 00:06:06,390 --> 00:06:04,160 so our confidence comes through what 148 00:06:08,629 --> 00:06:06,400 we're going to learn in this when we're 149 00:06:10,629 --> 00:06:08,639 ready to go back out there we'll go back 150 00:06:12,790 --> 00:06:10,639 out there and try for another 151 00:06:15,510 --> 00:06:12,800 launch michael i'll lay out for you what 152 00:06:17,830 --> 00:06:15,520 we uh what we have in in between uh i'll 153 00:06:19,830 --> 00:06:17,840 i'll say this obviously we've talked 154 00:06:22,150 --> 00:06:19,840 about this mission being risky but we're 155 00:06:23,830 --> 00:06:22,160 going to take the risks that make sense 156 00:06:25,990 --> 00:06:23,840 the risk that we know that have already 157 00:06:28,150 --> 00:06:26,000 pushed the vehicle and the system as far 158 00:06:30,390 --> 00:06:28,160 as it will uh when we launch 159 00:06:31,990 --> 00:06:30,400 and uh and be ready to go at that time 160 00:06:35,029 --> 00:06:32,000 so with that let me turn over to mike 161 00:06:36,950 --> 00:06:35,039 for some more specifics okay and uh good 162 00:06:38,870 --> 00:06:36,960 afternoon again thank you for continuing 163 00:06:39,990 --> 00:06:38,880 to follow the artemis one mission in our 164 00:06:42,870 --> 00:06:40,000 program 165 00:06:45,909 --> 00:06:42,880 i'll just briefly recap where we left 166 00:06:48,390 --> 00:06:45,919 off the last time we were here which was 167 00:06:51,270 --> 00:06:48,400 after the launch -2 mission management 168 00:06:52,710 --> 00:06:51,280 team meeting on the first to review our 169 00:06:53,589 --> 00:06:52,720 readiness to head into this launch 170 00:06:55,189 --> 00:06:53,599 attempt 171 00:06:56,790 --> 00:06:55,199 if you recall the 172 00:06:58,309 --> 00:06:56,800 launch operations team out of the launch 173 00:06:59,350 --> 00:06:58,319 control center stayed in the launch 174 00:07:01,990 --> 00:06:59,360 countdown 175 00:07:03,990 --> 00:07:02,000 following the attempt on monday and that 176 00:07:05,270 --> 00:07:04,000 gave us a head start headed into today's 177 00:07:05,990 --> 00:07:05,280 attempt 178 00:07:21,510 --> 00:07:06,000 the 179 00:07:23,510 --> 00:07:21,520 and it was a clean meeting we met at 0 4 180 00:07:25,430 --> 00:07:23,520 45 this morning 181 00:07:26,230 --> 00:07:25,440 and we talked about our setup for the 182 00:07:28,070 --> 00:07:26,240 day 183 00:07:29,990 --> 00:07:28,080 and there were a few 184 00:07:31,510 --> 00:07:30,000 excuse me there were a few items that we 185 00:07:33,670 --> 00:07:31,520 talked about uh 186 00:07:34,790 --> 00:07:33,680 but most of those were 187 00:07:36,070 --> 00:07:34,800 of no 188 00:07:38,150 --> 00:07:36,080 particular 189 00:07:40,150 --> 00:07:38,160 constraint relative to 190 00:07:43,270 --> 00:07:40,160 setting up for our launch attempt 191 00:07:45,110 --> 00:07:43,280 the team identified that they had 46 192 00:07:47,430 --> 00:07:45,120 collision avoidance cutouts in the in 193 00:07:48,469 --> 00:07:47,440 the launch window most were a minute uh 194 00:07:50,150 --> 00:07:48,479 or or 195 00:07:52,790 --> 00:07:50,160 i'm sorry most for just a few seconds 196 00:07:54,869 --> 00:07:52,800 the longest ones were about a minute 197 00:07:57,350 --> 00:07:54,879 we do have uh 198 00:07:58,869 --> 00:07:57,360 at this particular time of year 199 00:08:00,869 --> 00:07:58,879 a high 200 00:08:02,790 --> 00:08:00,879 propellant bulk temperature 201 00:08:05,189 --> 00:08:02,800 which gives us more performance out of 202 00:08:08,469 --> 00:08:05,199 the rocket so essentially we have a hot 203 00:08:10,869 --> 00:08:08,479 rocket in terms of the performance 204 00:08:12,950 --> 00:08:10,879 to launch and that actually as we fly 205 00:08:15,270 --> 00:08:12,960 through the earth's atmosphere pushes 206 00:08:16,790 --> 00:08:15,280 the higher end of the maximum dynamic 207 00:08:19,270 --> 00:08:16,800 pressure or q-bar 208 00:08:20,309 --> 00:08:19,280 and we saw that we had positive margins 209 00:08:22,550 --> 00:08:20,319 but 210 00:08:23,990 --> 00:08:22,560 lower margins on one specific area on 211 00:08:26,070 --> 00:08:24,000 the orion spacecraft and we were 212 00:08:28,230 --> 00:08:26,080 watching that the vehicle was expected 213 00:08:30,629 --> 00:08:28,240 to get to about 700 pounds per square 214 00:08:31,350 --> 00:08:30,639 foot of pressure as it headed up through 215 00:08:40,870 --> 00:08:31,360 the 216 00:08:41,990 --> 00:08:40,880 through a chill down 217 00:08:42,949 --> 00:08:42,000 and 218 00:08:48,470 --> 00:08:42,959 the 219 00:08:50,070 --> 00:08:48,480 line 220 00:08:52,310 --> 00:08:50,080 that the pressure 221 00:08:54,470 --> 00:08:52,320 exceeded what we what we had planned 222 00:08:57,030 --> 00:08:54,480 which was about 20 pounds per square 223 00:08:58,310 --> 00:08:57,040 inch it got up to about 60 pounds per 224 00:09:01,110 --> 00:08:58,320 square inch 225 00:09:04,550 --> 00:09:01,120 and the flight hardware itself we know 226 00:09:07,030 --> 00:09:04,560 is is fine we did not exceed the 227 00:09:09,750 --> 00:09:07,040 maximum design pressure 228 00:09:11,110 --> 00:09:09,760 but there's a chance that the that the 229 00:09:12,630 --> 00:09:11,120 soft goods or the 230 00:09:14,150 --> 00:09:12,640 the seal 231 00:09:16,470 --> 00:09:14,160 in the quick disconnect at the eight 232 00:09:18,470 --> 00:09:16,480 inch quick disconnect 233 00:09:19,750 --> 00:09:18,480 saw some effects from that but it's too 234 00:09:21,990 --> 00:09:19,760 early to tell 235 00:09:24,389 --> 00:09:22,000 exactly whether that was the cause of 236 00:09:26,790 --> 00:09:24,399 the the hydrogen leak that we had today 237 00:09:29,190 --> 00:09:26,800 what we do know is that we saw a large 238 00:09:30,870 --> 00:09:29,200 leak at the eight inch quick disconnect 239 00:09:31,750 --> 00:09:30,880 today and 240 00:09:33,030 --> 00:09:31,760 that 241 00:09:35,430 --> 00:09:33,040 leak started 242 00:09:37,030 --> 00:09:35,440 when we went from the slow fill to the 243 00:09:39,110 --> 00:09:37,040 fast fill 244 00:09:40,470 --> 00:09:39,120 this particular quick disconnect did not 245 00:09:42,870 --> 00:09:40,480 have a problem 246 00:09:45,110 --> 00:09:42,880 uh of this magnitude on monday we did 247 00:09:48,150 --> 00:09:45,120 see a small leak but we did not see one 248 00:09:50,870 --> 00:09:48,160 of this magnitude it was it was 249 00:09:52,790 --> 00:09:50,880 characterized as a large leak by our 250 00:09:55,829 --> 00:09:52,800 buyer operations team 251 00:09:58,470 --> 00:09:55,839 the team tried three times to resolve 252 00:10:00,310 --> 00:09:58,480 the leak and all three times we saw a 253 00:10:03,110 --> 00:10:00,320 large leak 254 00:10:04,790 --> 00:10:03,120 and and as was discussed previously if 255 00:10:06,630 --> 00:10:04,800 if you can thermally stabilize both 256 00:10:08,630 --> 00:10:06,640 sides of that quick disconnect we have a 257 00:10:10,710 --> 00:10:08,640 ground side and a flight side 258 00:10:13,269 --> 00:10:10,720 and that is where the fluid flow occurs 259 00:10:15,750 --> 00:10:13,279 through if you can chill that down and 260 00:10:17,829 --> 00:10:15,760 ensure that there's no differential 261 00:10:19,910 --> 00:10:17,839 temperature across that interface 262 00:10:21,990 --> 00:10:19,920 sometimes the leaks conceal themselves 263 00:10:24,710 --> 00:10:22,000 or or heal themselves so the team 264 00:10:27,990 --> 00:10:24,720 attempted that they attempted to 265 00:10:30,150 --> 00:10:28,000 essentially reseat the leak by by 266 00:10:31,430 --> 00:10:30,160 increasing the pressure in there and and 267 00:10:32,470 --> 00:10:31,440 that was 268 00:10:34,550 --> 00:10:32,480 was 269 00:10:36,550 --> 00:10:34,560 not successful 270 00:10:40,870 --> 00:10:36,560 so initially the team 271 00:10:43,190 --> 00:10:40,880 declared the scrub at 11 17 eastern time 272 00:10:45,190 --> 00:10:43,200 and then went into vehicle safing and 273 00:10:47,190 --> 00:10:45,200 and drained the kryl 274 00:10:48,550 --> 00:10:47,200 the liquid oxygen is currently off the 275 00:10:50,069 --> 00:10:48,560 vehicle and 276 00:10:51,110 --> 00:10:50,079 the liquid hydrogen at least when we 277 00:10:52,470 --> 00:10:51,120 were in the mission management team 278 00:10:53,750 --> 00:10:52,480 meeting was still on board the vehicle 279 00:10:56,389 --> 00:10:53,760 and they were in the process of draining 280 00:10:58,310 --> 00:10:56,399 it it should be off by now or very close 281 00:11:01,350 --> 00:10:58,320 to it the team will get into what they 282 00:11:03,269 --> 00:11:01,360 call the inerting which is they put 283 00:11:06,069 --> 00:11:03,279 gaseous nitrogen in there 284 00:11:08,630 --> 00:11:06,079 so as not to condense water vapor 285 00:11:10,790 --> 00:11:08,640 in the in the tank area and then uh 286 00:11:12,710 --> 00:11:10,800 they'll they'll swap over to air what 287 00:11:15,110 --> 00:11:12,720 that does is it allows us to get the 288 00:11:18,230 --> 00:11:15,120 tanks back up to ambient uh conditions 289 00:11:21,509 --> 00:11:18,240 and then for us to gain access 290 00:11:22,710 --> 00:11:21,519 in the uh scrub meeting that we had it 291 00:11:25,030 --> 00:11:22,720 at 292 00:11:27,269 --> 00:11:25,040 2 30 eastern 293 00:11:29,509 --> 00:11:27,279 we talked about three options the first 294 00:11:31,750 --> 00:11:29,519 option was to 295 00:11:34,790 --> 00:11:31,760 simply demate and remake the umbilical 296 00:11:37,430 --> 00:11:34,800 at the pad hoping that the 297 00:11:39,269 --> 00:11:37,440 soft goods would seal the leak up but 298 00:11:40,870 --> 00:11:39,279 our confidence level given 299 00:11:43,030 --> 00:11:40,880 the size of the leak that we saw today 300 00:11:44,310 --> 00:11:43,040 was fairly low that that would solve the 301 00:11:45,910 --> 00:11:44,320 problem 302 00:11:49,030 --> 00:11:45,920 the team 303 00:11:50,150 --> 00:11:49,040 leaned towards a 304 00:12:07,829 --> 00:11:50,160 a 305 00:12:10,069 --> 00:12:07,839 which expires on the 6th 306 00:12:11,509 --> 00:12:10,079 so the team is developing a series of 307 00:12:13,350 --> 00:12:11,519 schedule options and we're going to hear 308 00:12:15,829 --> 00:12:13,360 about those early next week 309 00:12:18,629 --> 00:12:15,839 the schedule options include 310 00:12:20,069 --> 00:12:18,639 removal and replacement of the 311 00:12:21,670 --> 00:12:20,079 the soft goods on the on the quick 312 00:12:23,590 --> 00:12:21,680 disconnect at the pad 313 00:12:25,509 --> 00:12:23,600 followed by a 314 00:12:27,750 --> 00:12:25,519 cryotest that is the only place we can 315 00:12:30,069 --> 00:12:27,760 get a full cryo test to ensure that we 316 00:12:31,590 --> 00:12:30,079 do not have 317 00:12:47,990 --> 00:12:31,600 the 318 00:12:49,910 --> 00:12:48,000 quick disconnect 319 00:12:50,949 --> 00:12:49,920 soft goods in the vehicle assembly 320 00:12:52,629 --> 00:12:50,959 building 321 00:12:53,910 --> 00:12:52,639 there's a risk versus risk trade doing 322 00:12:55,269 --> 00:12:53,920 it at the pad you're exposed to the 323 00:12:57,269 --> 00:12:55,279 environmental conditions and we need to 324 00:12:58,790 --> 00:12:57,279 build an environmental enclosure 325 00:13:00,389 --> 00:12:58,800 to do that we do it in the vehicle 326 00:13:03,030 --> 00:13:00,399 assembly building the vehicle assembly 327 00:13:04,710 --> 00:13:03,040 building is the environmental enclosure 328 00:13:08,470 --> 00:13:04,720 however we cannot 329 00:13:10,150 --> 00:13:08,480 test this quick disconnect at in the vab 330 00:13:12,069 --> 00:13:10,160 at cryogenic temperatures we can only do 331 00:13:14,150 --> 00:13:12,079 it at ambient temperatures so 332 00:13:15,269 --> 00:13:14,160 we're working through those options uh 333 00:13:16,870 --> 00:13:15,279 the team 334 00:13:18,550 --> 00:13:16,880 it's it's too early to say but they're 335 00:13:20,550 --> 00:13:18,560 working through a fault tree analysis as 336 00:13:24,230 --> 00:13:20,560 to why we did not see a leak of this 337 00:13:27,030 --> 00:13:24,240 magnitude on monday but we're seeing it 338 00:13:29,350 --> 00:13:27,040 of this magnitude at today's attempt and 339 00:13:30,790 --> 00:13:29,360 they're also looking at the chill down 340 00:13:33,110 --> 00:13:30,800 procedure 341 00:13:35,190 --> 00:13:33,120 to look at additional 342 00:13:36,710 --> 00:13:35,200 controls such that we don't have a 343 00:13:37,910 --> 00:13:36,720 reoccurrence of the 344 00:13:39,350 --> 00:13:37,920 of the 345 00:13:41,030 --> 00:13:39,360 inadvertent over pressure that we had 346 00:13:42,310 --> 00:13:41,040 earlier today so 347 00:13:43,829 --> 00:13:42,320 all that said 348 00:13:45,750 --> 00:13:43,839 we've talked about it before this is an 349 00:13:48,389 --> 00:13:45,760 incredibly hard business this is an 350 00:13:51,110 --> 00:13:48,399 initial test flight of this vehicle as 351 00:13:52,710 --> 00:13:51,120 was said by administrator nelson we're 352 00:13:53,509 --> 00:13:52,720 going to fly when we're ready 353 00:13:55,590 --> 00:13:53,519 and 354 00:13:56,949 --> 00:13:55,600 as part of this initial test flight 355 00:13:58,550 --> 00:13:56,959 we're learning the vehicle we're 356 00:14:01,030 --> 00:13:58,560 learning how to operate the vehicle and 357 00:14:03,670 --> 00:14:01,040 we are learning 358 00:14:06,629 --> 00:14:03,680 all of the things required to get us 359 00:14:08,629 --> 00:14:06,639 ready to fly and we've demonstrated a 360 00:14:10,629 --> 00:14:08,639 large number of those things 361 00:14:13,030 --> 00:14:10,639 not only through wet dress and some of 362 00:14:13,750 --> 00:14:13,040 the other ground tests that we've had 363 00:14:16,230 --> 00:14:13,760 but 364 00:14:18,069 --> 00:14:16,240 we we are still learning as we go again 365 00:14:19,750 --> 00:14:18,079 to get this vehicle off safely so our 366 00:14:21,590 --> 00:14:19,760 focus is on 367 00:14:23,829 --> 00:14:21,600 understanding the problem 368 00:14:26,150 --> 00:14:23,839 developing solutions uh in terms of 369 00:14:28,230 --> 00:14:26,160 schedule but also risk versus risk 370 00:14:30,629 --> 00:14:28,240 impacts and we'll follow up 371 00:14:32,550 --> 00:14:30,639 next week when we when we have those 372 00:14:34,790 --> 00:14:32,560 options uh fleshed out further so with 373 00:14:35,670 --> 00:14:34,800 that i'll pass it back to jackie thanks 374 00:14:37,350 --> 00:14:35,680 mike 375 00:14:39,990 --> 00:14:37,360 so now we'll open it up for questions in 376 00:14:42,310 --> 00:14:40,000 the room and also on the phones on the 377 00:14:44,230 --> 00:14:42,320 phones as a reminder press star one to 378 00:14:46,230 --> 00:14:44,240 get into the queue and in the room if 379 00:14:48,470 --> 00:14:46,240 you could leave your hand high for the 380 00:14:49,590 --> 00:14:48,480 mic folks to come get you after you ask 381 00:14:56,389 --> 00:14:49,600 your question 382 00:15:00,230 --> 00:14:58,790 a question for mike if you decide to 383 00:15:02,069 --> 00:15:00,240 roll back and i know you know it's 384 00:15:04,949 --> 00:15:02,079 uncertain right now um what's the 385 00:15:06,870 --> 00:15:04,959 quickest you could roll sls back out to 386 00:15:07,910 --> 00:15:06,880 the pad what would that look like and 387 00:15:10,150 --> 00:15:07,920 what other things would you have to do 388 00:15:12,150 --> 00:15:10,160 in the vab while it's there 389 00:15:13,829 --> 00:15:12,160 we're looking at several weeks to do 390 00:15:16,310 --> 00:15:13,839 that 391 00:15:18,470 --> 00:15:16,320 depending on the 392 00:15:19,750 --> 00:15:18,480 required work at the pad or whether we 393 00:15:21,750 --> 00:15:19,760 do it in the vehicle assembly building 394 00:15:23,350 --> 00:15:21,760 that'll determine the exact the exact 395 00:15:24,870 --> 00:15:23,360 schedule but it's it's several weeks of 396 00:15:28,310 --> 00:15:24,880 work it's really too early to say 397 00:15:36,150 --> 00:15:29,990 thanks and up next on the phones we have 398 00:15:41,670 --> 00:15:39,110 yes hi can you hear me we can hear you 399 00:15:44,470 --> 00:15:41,680 yes um yes 400 00:15:46,470 --> 00:15:44,480 uh i was wondering so are you saying uh 401 00:15:48,949 --> 00:15:46,480 if you do the repairs at the pad and it 402 00:15:51,670 --> 00:15:48,959 seems to go well you could shoot 403 00:15:53,189 --> 00:15:51,680 still maybe get off in september 404 00:15:54,550 --> 00:15:53,199 uh by the end of the month before the 405 00:15:55,910 --> 00:15:54,560 spacex 406 00:15:58,069 --> 00:15:55,920 launch coming up at the beginning of 407 00:16:01,829 --> 00:15:58,079 october is that a possibility 408 00:16:03,030 --> 00:16:01,839 and the way things stand right now um 409 00:16:05,670 --> 00:16:03,040 which way do you think you're leaning 410 00:16:07,990 --> 00:16:05,680 for thanks 411 00:16:10,389 --> 00:16:08,000 i'll just take the first part of that uh 412 00:16:11,670 --> 00:16:10,399 you know i think we we still have our uh 413 00:16:14,230 --> 00:16:11,680 constraint 414 00:16:16,629 --> 00:16:14,240 on the range with the range to test our 415 00:16:18,550 --> 00:16:16,639 flight termination system which is right 416 00:16:20,470 --> 00:16:18,560 now we have 25 days you know i think 417 00:16:22,389 --> 00:16:20,480 we're going to talk with the range about 418 00:16:25,590 --> 00:16:22,399 what the possibilities are 419 00:16:27,110 --> 00:16:25,600 but uh we you know in order to to test 420 00:16:29,269 --> 00:16:27,120 our batteries change out the batteries 421 00:16:30,150 --> 00:16:29,279 we have to we have to roll back uh for 422 00:16:32,310 --> 00:16:30,160 that 423 00:16:34,790 --> 00:16:32,320 and i'll let you handle the options yeah 424 00:16:37,030 --> 00:16:34,800 and and marshall with respect to uh 425 00:16:38,629 --> 00:16:37,040 whether or not september 426 00:16:40,310 --> 00:16:38,639 the the latter part of september is 427 00:16:42,310 --> 00:16:40,320 still in the trade space again i think 428 00:16:44,069 --> 00:16:42,320 it's too early to tell it really 429 00:16:46,550 --> 00:16:44,079 comes down to what is what does the 430 00:16:49,590 --> 00:16:46,560 fault tree analysis tell us and what are 431 00:16:52,310 --> 00:16:49,600 the necessary changes in mitigations 432 00:16:54,069 --> 00:16:52,320 required uh in order to 433 00:16:56,470 --> 00:16:54,079 in order to have a confidence that we've 434 00:16:58,949 --> 00:16:56,480 resolved this large leak at the eight 435 00:17:01,030 --> 00:16:58,959 inch quick disconnect so i i think we'll 436 00:17:02,389 --> 00:17:01,040 have a much better answer early next 437 00:17:04,710 --> 00:17:02,399 week and right now it's just too early 438 00:17:06,630 --> 00:17:04,720 to tell 439 00:17:10,470 --> 00:17:06,640 thank you next we have tom costello with 440 00:17:14,150 --> 00:17:12,789 uh hi good afternoon can i just clarify 441 00:17:16,230 --> 00:17:14,160 you said that the 442 00:17:18,309 --> 00:17:16,240 the line had been over pressurized up to 443 00:17:21,189 --> 00:17:18,319 60 psi do you believe that that over 444 00:17:23,270 --> 00:17:21,199 pressurization potentially caused the 445 00:17:25,189 --> 00:17:23,280 leak that then you were dealing with all 446 00:17:26,789 --> 00:17:25,199 day today and any idea how that line was 447 00:17:29,190 --> 00:17:26,799 over pressurized 448 00:17:31,510 --> 00:17:29,200 yeah i guess what i'd say is i think 449 00:17:33,750 --> 00:17:31,520 mike talked about the fault tree 450 00:17:36,549 --> 00:17:33,760 we we have to go look at 451 00:17:38,549 --> 00:17:36,559 is that a cause is that the cause i'm 452 00:17:40,549 --> 00:17:38,559 sure it'll end up on the fault tree but 453 00:17:42,150 --> 00:17:40,559 we have to run through all legs of that 454 00:17:43,590 --> 00:17:42,160 fall tree before we decide that's 455 00:17:47,590 --> 00:17:43,600 absolutely 456 00:17:49,990 --> 00:17:47,600 we we do 457 00:17:52,470 --> 00:17:50,000 i think i forget how the words that you 458 00:17:55,029 --> 00:17:52,480 use the last one we kind of tune in this 459 00:17:57,350 --> 00:17:55,039 this hydrogen we did that on monday you 460 00:17:59,190 --> 00:17:57,360 know monday we saw it it started to go 461 00:18:00,630 --> 00:17:59,200 up and we slowed the rate and did a 462 00:18:01,590 --> 00:18:00,640 manual fill 463 00:18:03,830 --> 00:18:01,600 um 464 00:18:05,990 --> 00:18:03,840 that's just part of the process and and 465 00:18:07,270 --> 00:18:06,000 we we need to look as mike said to to 466 00:18:10,230 --> 00:18:07,280 automate that 467 00:18:12,549 --> 00:18:10,240 um and and get the places where it'll 468 00:18:14,789 --> 00:18:12,559 cut out if if the pressure is 469 00:18:17,029 --> 00:18:14,799 is going too high so we don't we don't 470 00:18:19,029 --> 00:18:17,039 hit that kind of command again 471 00:18:21,270 --> 00:18:19,039 that'll be part of what we we automate 472 00:18:23,830 --> 00:18:21,280 and and practice for the for the next 473 00:18:25,669 --> 00:18:23,840 time but it's on the fall tree uh it's 474 00:18:28,630 --> 00:18:25,679 kind of tough to say right now yeah that 475 00:18:31,830 --> 00:18:28,640 is the absolute cause 476 00:18:35,430 --> 00:18:31,840 chris davenport washington post 477 00:18:39,510 --> 00:18:37,510 thank you i just want to clarify you're 478 00:18:41,110 --> 00:18:39,520 going back to the vab 479 00:18:42,630 --> 00:18:41,120 no matter what right i just want to 480 00:18:44,070 --> 00:18:42,640 clarify that and i wonder if you could 481 00:18:45,270 --> 00:18:44,080 just briefly mike talk about the 482 00:18:48,310 --> 00:18:45,280 differences 483 00:18:49,990 --> 00:18:48,320 with this uh hydrogen leak this big one 484 00:18:54,630 --> 00:18:50,000 that you had versus the one that you 485 00:18:58,470 --> 00:18:56,710 yeah for the vab part of it it's what i 486 00:18:59,990 --> 00:18:58,480 said we we have to go back right now we 487 00:19:02,230 --> 00:19:00,000 don't do not have an agreement with a 488 00:19:05,750 --> 00:19:02,240 range that we can launch when our 489 00:19:06,789 --> 00:19:05,760 batteries have not been tested after 25 490 00:19:09,190 --> 00:19:06,799 days 491 00:19:11,029 --> 00:19:09,200 um so that that runs out here as mike 492 00:19:12,710 --> 00:19:11,039 said and 493 00:19:14,070 --> 00:19:12,720 so in order to change them out we have 494 00:19:15,669 --> 00:19:14,080 to go back 495 00:19:17,430 --> 00:19:15,679 to get that kind of extension with the 496 00:19:19,909 --> 00:19:17,440 range is something we'd have to talk to 497 00:19:22,630 --> 00:19:19,919 them about so right now our position is 498 00:19:24,230 --> 00:19:22,640 we will have to go back to the vab 499 00:19:26,470 --> 00:19:24,240 when we go back will depend on the 500 00:19:28,310 --> 00:19:26,480 testing options that mike talked about 501 00:19:30,870 --> 00:19:28,320 yeah and and to take a crack at the 502 00:19:32,310 --> 00:19:30,880 second part of your question there um 503 00:19:34,390 --> 00:19:32,320 chris um 504 00:19:35,430 --> 00:19:34,400 in terms of the leak that we saw on 505 00:19:38,390 --> 00:19:35,440 monday 506 00:19:40,150 --> 00:19:38,400 it would it was a manageable leak this 507 00:19:42,390 --> 00:19:40,160 was not a manageable leak 508 00:19:44,150 --> 00:19:42,400 as soon as we started uh to get into 509 00:19:45,909 --> 00:19:44,160 fast fill and and we need to get into 510 00:19:47,110 --> 00:19:45,919 fast fill again as part of this delicate 511 00:19:49,909 --> 00:19:47,120 balance of 512 00:19:55,430 --> 00:19:53,830 you you want to load uh within the 513 00:19:56,870 --> 00:19:55,440 within the capability of the quick 514 00:19:58,230 --> 00:19:56,880 disconnect 515 00:20:00,470 --> 00:19:58,240 which tells you you want to slow it down 516 00:20:01,990 --> 00:20:00,480 but you also want to speed it up so you 517 00:20:04,789 --> 00:20:02,000 can make your launch window so you've 518 00:20:06,710 --> 00:20:04,799 got this balance between the 519 00:20:07,750 --> 00:20:06,720 between the the flow rate and the 520 00:20:09,669 --> 00:20:07,760 pressure 521 00:20:11,190 --> 00:20:09,679 and if there's a leak present you need 522 00:20:12,710 --> 00:20:11,200 to manage that so 523 00:20:14,390 --> 00:20:12,720 on monday the team was able to 524 00:20:17,110 --> 00:20:14,400 successfully work their way through that 525 00:20:19,990 --> 00:20:17,120 while staying with below the hazardous 526 00:20:22,070 --> 00:20:20,000 concentration limit of the 527 00:20:23,830 --> 00:20:22,080 hydrogen that was leaking out we were 528 00:20:26,630 --> 00:20:23,840 unable to do that today there was a much 529 00:20:28,870 --> 00:20:26,640 larger leak the team tried to work and 530 00:20:31,430 --> 00:20:28,880 use the same technique as part of a 531 00:20:33,350 --> 00:20:31,440 pre-planned procedure 532 00:20:36,070 --> 00:20:33,360 they tried multiple times and and that 533 00:20:38,870 --> 00:20:36,080 didn't work in addition to trying to uh 534 00:20:40,630 --> 00:20:38,880 to bump the um the quick disconnect and 535 00:20:42,870 --> 00:20:40,640 try to reseed it and and then none of 536 00:20:45,110 --> 00:20:42,880 those techniques worked um 537 00:20:48,230 --> 00:20:45,120 the techniques that we used on monday 538 00:20:51,510 --> 00:20:48,240 just for this magnitude of leak we're 539 00:21:01,510 --> 00:20:52,950 thanks mike 540 00:21:04,149 --> 00:21:02,470 thank you 541 00:21:06,630 --> 00:21:04,159 uh just wondering if there is a 542 00:21:08,310 --> 00:21:06,640 precedent uh for getting an extension 543 00:21:10,630 --> 00:21:08,320 with the range on something like this 544 00:21:12,549 --> 00:21:10,640 has that ever been done before or 545 00:21:14,950 --> 00:21:12,559 uh if you all were to ask the range for 546 00:21:16,710 --> 00:21:14,960 that to allow the the vehicle to stay on 547 00:21:18,549 --> 00:21:16,720 the launch pad before next attempt would 548 00:21:20,230 --> 00:21:18,559 that be something that's that hasn't 549 00:21:22,310 --> 00:21:20,240 been done before 550 00:21:25,430 --> 00:21:22,320 we we work with them just recently to go 551 00:21:27,029 --> 00:21:25,440 from 20 to 25 days uh showing them a lot 552 00:21:29,990 --> 00:21:27,039 of the technical data that they needed 553 00:21:32,149 --> 00:21:30,000 to see about the integrity of our system 554 00:21:33,750 --> 00:21:32,159 so i'm i'm confident there's probably 555 00:21:35,590 --> 00:21:33,760 been other ones i can't quote the 556 00:21:37,350 --> 00:21:35,600 history but i can tell you that we just 557 00:21:39,029 --> 00:21:37,360 negotiated with them to go from 20 to 558 00:21:40,630 --> 00:21:39,039 25. 559 00:21:42,070 --> 00:21:40,640 do you feel at least somewhat confident 560 00:21:45,510 --> 00:21:42,080 that there's a chance 561 00:21:47,909 --> 00:21:45,520 um that perhaps this rocket could stay 562 00:21:49,830 --> 00:21:47,919 on the pad before next launch attempt 563 00:21:52,230 --> 00:21:49,840 um well that's 564 00:21:54,549 --> 00:21:52,240 i mean my conjecture is i don't know 565 00:21:55,669 --> 00:21:54,559 because uh it's it's really it's really 566 00:21:57,750 --> 00:21:55,679 their call 567 00:21:59,669 --> 00:21:57,760 and i think we have data that probably 568 00:22:01,190 --> 00:21:59,679 supports it and i know i know our folks 569 00:22:03,110 --> 00:22:01,200 are going to go talk to the range as 570 00:22:05,270 --> 00:22:03,120 soon as they're able to but that's 571 00:22:07,110 --> 00:22:05,280 really uh you know that's serious 572 00:22:09,190 --> 00:22:07,120 business that they deal with and we deal 573 00:22:10,470 --> 00:22:09,200 with and we want to respect 574 00:22:13,830 --> 00:22:10,480 that this is their range and we're 575 00:22:19,110 --> 00:22:13,840 launching from it 576 00:22:21,909 --> 00:22:20,630 hi lauren gresh with bloomberg i'm 577 00:22:24,470 --> 00:22:21,919 wondering if you can walk us through 578 00:22:27,350 --> 00:22:24,480 exactly what hardware you need to be 579 00:22:31,830 --> 00:22:27,360 replacing exactly where it is and how 580 00:22:35,110 --> 00:22:34,070 yeah lawrence i'll take a crack at that 581 00:22:36,950 --> 00:22:35,120 um 582 00:22:40,710 --> 00:22:36,960 right now we're focused on the the eight 583 00:22:42,710 --> 00:22:40,720 inch quick disconnect and simply the the 584 00:22:45,029 --> 00:22:42,720 soft goods the the 585 00:22:46,230 --> 00:22:45,039 seal that surrounds it 586 00:22:48,870 --> 00:22:46,240 we need to get through the fault tree 587 00:22:50,950 --> 00:22:48,880 analysis to figure out exactly uh if 588 00:22:52,789 --> 00:22:50,960 there's if there's anything else that 589 00:22:55,350 --> 00:22:52,799 needs to be accounted for it's a little 590 00:22:56,710 --> 00:22:55,360 too early to tell exactly again 591 00:22:59,830 --> 00:22:56,720 as to what 592 00:23:01,669 --> 00:22:59,840 uh else may be in play what other work 593 00:23:02,470 --> 00:23:01,679 uh may be necessary so there's there's 594 00:23:05,270 --> 00:23:02,480 the 595 00:23:07,510 --> 00:23:05,280 kind of your your engineering review 596 00:23:09,270 --> 00:23:07,520 board or or technical analysis that will 597 00:23:11,590 --> 00:23:09,280 happen in the office environment and 598 00:23:13,750 --> 00:23:11,600 then we'll go out and we'll demate the 599 00:23:15,270 --> 00:23:13,760 umbilical whether it's at the pad or in 600 00:23:15,990 --> 00:23:15,280 the vehicle assembly building depending 601 00:23:17,510 --> 00:23:16,000 on 602 00:23:18,549 --> 00:23:17,520 what the what the team brings forward 603 00:23:20,950 --> 00:23:18,559 next week 604 00:23:22,630 --> 00:23:20,960 and we'll put those two together and 605 00:23:24,390 --> 00:23:22,640 decide what are the things that we can 606 00:23:26,630 --> 00:23:24,400 resolve based on the data that we 607 00:23:28,310 --> 00:23:26,640 already have from the fall tree analysis 608 00:23:29,750 --> 00:23:28,320 and say we don't need to check these 609 00:23:30,950 --> 00:23:29,760 things or we absolutely need to check 610 00:23:33,029 --> 00:23:30,960 these things 611 00:23:35,350 --> 00:23:33,039 and then 612 00:23:37,750 --> 00:23:35,360 we will also have some witness 613 00:23:39,990 --> 00:23:37,760 information when we when we demate the 614 00:23:41,750 --> 00:23:40,000 umbilical we're being very thoughtful 615 00:23:44,230 --> 00:23:41,760 about demanding the umbilical at this 616 00:23:46,630 --> 00:23:44,240 point because we also don't want to 617 00:23:48,630 --> 00:23:46,640 disturb what may be 618 00:23:51,830 --> 00:23:48,640 critical engineering data is part of 619 00:23:52,630 --> 00:23:51,840 that so before we we proceed into 620 00:23:54,070 --> 00:23:52,640 um 621 00:23:57,510 --> 00:23:54,080 a simple 622 00:23:59,350 --> 00:23:57,520 and replacement of this quick disconnect 623 00:24:00,549 --> 00:23:59,360 seal we want to make sure that we're not 624 00:24:02,549 --> 00:24:00,559 overlooking something so we're going to 625 00:24:04,470 --> 00:24:02,559 take some time to go through this from 626 00:24:06,549 --> 00:24:04,480 uh from an engineering standpoint 627 00:24:08,710 --> 00:24:06,559 go through any potential cause or 628 00:24:11,190 --> 00:24:08,720 exclude any potential cause based on the 629 00:24:13,990 --> 00:24:11,200 information we had so it's again it's a 630 00:24:18,390 --> 00:24:14,000 little too early to tell exactly where 631 00:24:18,400 --> 00:24:24,230 thank you eric berger with ars technica 632 00:24:29,110 --> 00:24:26,230 uh two quick ones about the hydrogen 633 00:24:30,630 --> 00:24:29,120 first of all um maybe mike if i was 634 00:24:33,269 --> 00:24:30,640 staying there with a bucket and some 635 00:24:34,549 --> 00:24:33,279 cryogenic proof gloves like how quickly 636 00:24:37,029 --> 00:24:34,559 would it fill the bucket just want to 637 00:24:39,110 --> 00:24:37,039 sort of get a sense of the magnitude of 638 00:24:40,870 --> 00:24:39,120 the leak you've called it a large leak 639 00:24:42,870 --> 00:24:40,880 and then for senator nelson you know 640 00:24:44,390 --> 00:24:42,880 when you were writing the authorization 641 00:24:46,149 --> 00:24:44,400 bill in 2010 642 00:24:47,350 --> 00:24:46,159 sort of setting up this base launch 643 00:24:48,549 --> 00:24:47,360 system 644 00:24:50,630 --> 00:24:48,559 did you have concerns about the 645 00:24:52,630 --> 00:24:50,640 continued use of hydrogen due to its 646 00:24:54,710 --> 00:24:52,640 leaky nature and your experience with it 647 00:24:58,630 --> 00:24:54,720 on shuttle thanks 648 00:25:00,870 --> 00:24:58,640 well i'll answer that right out uh i 649 00:25:04,310 --> 00:25:00,880 and along with senator k bailey 650 00:25:06,549 --> 00:25:04,320 hutchinson along with 651 00:25:08,549 --> 00:25:06,559 our folks in the white house 652 00:25:11,830 --> 00:25:08,559 uh deferred to 653 00:25:14,549 --> 00:25:11,840 the people who best knew the systems and 654 00:25:17,110 --> 00:25:14,559 so the answer your question is no 655 00:25:19,750 --> 00:25:17,120 we did not have 656 00:25:23,510 --> 00:25:19,760 any question about hydrogen we deferred 657 00:25:29,110 --> 00:25:25,350 yeah and eric to answer your your 658 00:25:31,350 --> 00:25:29,120 question about how large is the leak um 659 00:25:34,310 --> 00:25:31,360 i i i wouldn't use a bucket analogy on 660 00:25:37,029 --> 00:25:34,320 that one it it really is a concentration 661 00:25:37,990 --> 00:25:37,039 um you know when when you have 662 00:25:39,909 --> 00:25:38,000 a 663 00:25:42,710 --> 00:25:39,919 fuel source 664 00:25:45,269 --> 00:25:42,720 in atmospheric air that contains roughly 665 00:25:47,750 --> 00:25:45,279 20 oxygen 666 00:25:50,710 --> 00:25:47,760 when you mix the two all you need is an 667 00:25:51,990 --> 00:25:50,720 an ignition source to close the fire 668 00:25:53,669 --> 00:25:52,000 triangle so 669 00:25:56,470 --> 00:25:53,679 we know that when you get above roughly 670 00:25:59,430 --> 00:25:56,480 a four percent concentration of of 671 00:26:03,269 --> 00:25:59,440 hydrogen in ambient air you're at risk 672 00:26:06,789 --> 00:26:03,279 of having a flammability 673 00:26:09,430 --> 00:26:06,799 event or a flammability hazard we were 674 00:26:10,390 --> 00:26:09,440 seeing in excess of that 675 00:26:11,590 --> 00:26:10,400 by 676 00:26:13,190 --> 00:26:11,600 probably two or three orders of 677 00:26:15,269 --> 00:26:13,200 magnitude today so 678 00:26:16,870 --> 00:26:15,279 um i'm sorry not orders main two two or 679 00:26:19,269 --> 00:26:16,880 three times are our acceptable 680 00:26:20,230 --> 00:26:19,279 concentration limit um 681 00:26:21,990 --> 00:26:20,240 so 682 00:26:23,430 --> 00:26:22,000 it was pretty clear 683 00:26:25,350 --> 00:26:23,440 that we weren't going to be able to work 684 00:26:26,950 --> 00:26:25,360 our way through it like we did on monday 685 00:26:30,310 --> 00:26:26,960 in terms of 686 00:26:33,510 --> 00:26:30,320 the uh the managing of the leak uh every 687 00:26:35,990 --> 00:26:33,520 every time we saw the leak it was a 688 00:26:39,269 --> 00:26:36,000 large leak that immediately exceeded our 689 00:26:41,269 --> 00:26:39,279 flammability limits so 690 00:26:42,789 --> 00:26:41,279 you know again a couple of techniques 691 00:26:46,789 --> 00:26:42,799 were tried and we just couldn't get 692 00:26:50,549 --> 00:26:48,149 tariq with 693 00:26:54,789 --> 00:26:50,559 space.com 694 00:26:56,390 --> 00:26:54,799 uh from mike uh just to follow up on 695 00:26:58,149 --> 00:26:56,400 lauren's question about the nature of 696 00:27:00,070 --> 00:26:58,159 what has to be replaced you mentioned 697 00:27:03,190 --> 00:27:00,080 soft goods is that as simple as just a 698 00:27:04,870 --> 00:27:03,200 rubber seal is it silicone uh or is it 699 00:27:07,190 --> 00:27:04,880 more hardware that you do have to 700 00:27:08,950 --> 00:27:07,200 replace and and why would you need a an 701 00:27:13,909 --> 00:27:08,960 enclosure around it just to prevent 702 00:27:17,909 --> 00:27:13,919 corrosion then on that seal um thank you 703 00:27:24,789 --> 00:27:23,029 the quick disconnect it's it is a um 704 00:27:26,389 --> 00:27:24,799 it's a a metal 705 00:27:28,630 --> 00:27:26,399 um 706 00:27:31,350 --> 00:27:28,640 poppet like device 707 00:27:33,269 --> 00:27:31,360 and it has a gasket around it and i 708 00:27:36,070 --> 00:27:33,279 don't know the exact 709 00:27:36,950 --> 00:27:36,080 gasket material 710 00:27:39,909 --> 00:27:36,960 but 711 00:27:41,510 --> 00:27:39,919 if if we were to see damage on the quick 712 00:27:44,789 --> 00:27:41,520 disconnect that would tell us we would 713 00:27:47,830 --> 00:27:44,799 need to replace the hardware 714 00:27:49,110 --> 00:27:47,840 if we saw foreign object debris 715 00:27:50,950 --> 00:27:49,120 that would tell us 716 00:27:51,750 --> 00:27:50,960 that maybe we got something else going 717 00:27:55,510 --> 00:27:51,760 on 718 00:27:57,669 --> 00:27:55,520 gasket 719 00:28:00,149 --> 00:27:57,679 we've got spares we can 720 00:28:02,389 --> 00:28:00,159 quickly remove and replace that 721 00:28:04,070 --> 00:28:02,399 our history 722 00:28:05,830 --> 00:28:04,080 of our own testing at the launch 723 00:28:07,590 --> 00:28:05,840 equipment test facility which is which 724 00:28:10,710 --> 00:28:07,600 is right here resident at the kennedy 725 00:28:13,350 --> 00:28:10,720 space center tells us that 726 00:28:14,549 --> 00:28:13,360 a leak of this magnitude is typically 727 00:28:16,549 --> 00:28:14,559 resolved 728 00:28:18,470 --> 00:28:16,559 through a removal and replacement of the 729 00:28:20,470 --> 00:28:18,480 of the soft goods that seal 730 00:28:24,789 --> 00:28:20,480 and and that's kind of one of our 731 00:28:28,149 --> 00:28:26,470 but again we we need to go through the 732 00:28:29,350 --> 00:28:28,159 fault tree we need to inspect the 733 00:28:31,029 --> 00:28:29,360 hardware we need to see what the 734 00:28:31,909 --> 00:28:31,039 hardware is telling us 735 00:28:34,470 --> 00:28:31,919 so 736 00:28:37,669 --> 00:28:34,480 in terms of exactly what needs to be 737 00:28:39,029 --> 00:28:37,679 done it's it's too early to tell and i'm 738 00:28:40,230 --> 00:28:39,039 i'm sorry there was a second part to 739 00:28:43,190 --> 00:28:40,240 your question i don't recall what the 740 00:28:44,710 --> 00:28:43,200 second part was about the enclosure 741 00:28:45,990 --> 00:28:44,720 the enclosure yeah 742 00:28:48,310 --> 00:28:46,000 so 743 00:28:50,470 --> 00:28:48,320 the enclosure affords us 744 00:28:52,630 --> 00:28:50,480 the ability to 745 00:28:54,710 --> 00:28:52,640 provide what we call a purge at that 746 00:28:57,590 --> 00:28:54,720 interface and the purge 747 00:28:59,510 --> 00:28:57,600 allows us to push 748 00:29:01,350 --> 00:28:59,520 nitrogen in there to 749 00:29:03,510 --> 00:29:01,360 essentially inert or 750 00:29:06,310 --> 00:29:03,520 push out any oxygen in there so reduces 751 00:29:08,470 --> 00:29:06,320 the likelihood of a 752 00:29:10,870 --> 00:29:08,480 flammability hazard so if we were to 753 00:29:13,750 --> 00:29:10,880 just pump regular old air in there 754 00:29:16,870 --> 00:29:13,760 regular old air has oxygen in it and and 755 00:29:19,110 --> 00:29:16,880 we eliminate that oxygen by creating an 756 00:29:21,590 --> 00:29:19,120 enclosure and and putting nitrogen there 757 00:29:24,470 --> 00:29:21,600 in there to displace any oxygen such 758 00:29:26,389 --> 00:29:24,480 that if there is a hydrogen leak you've 759 00:29:30,230 --> 00:29:26,399 got one leg of the the fire triangle 760 00:29:34,149 --> 00:29:32,070 thanks now we'll go to a question from 761 00:29:37,110 --> 00:29:34,159 the phones we have rameen skiba from 762 00:29:42,070 --> 00:29:39,590 hi thank you um this is a question i 763 00:29:43,990 --> 00:29:42,080 think for mike um i was wondering what 764 00:29:45,909 --> 00:29:44,000 are the risks to the the cubesat 765 00:29:48,070 --> 00:29:45,919 secondary missions if if there's a 766 00:29:50,789 --> 00:29:48,080 significant delay like is is that a 767 00:29:52,950 --> 00:29:50,799 factor in determining um the the launch 768 00:29:54,389 --> 00:29:52,960 date um you know if some some of them 769 00:29:56,870 --> 00:29:54,399 cannot be recharged if the batteries 770 00:29:58,870 --> 00:29:56,880 cannot be recharged 771 00:30:01,590 --> 00:29:58,880 yeah that's a good question rameen 772 00:30:03,750 --> 00:30:01,600 we do maintain a um 773 00:30:05,830 --> 00:30:03,760 open communication loop with the 774 00:30:07,750 --> 00:30:05,840 with the cubesat customers so we will 775 00:30:10,389 --> 00:30:07,760 certainly inform them that 776 00:30:12,230 --> 00:30:10,399 we we did not 777 00:30:13,190 --> 00:30:12,240 have our our 778 00:30:16,549 --> 00:30:13,200 our 779 00:30:20,870 --> 00:30:16,559 next 780 00:30:23,110 --> 00:30:20,880 from a scheduled standpoint and we'll 781 00:30:25,110 --> 00:30:23,120 make a risk-based decision 782 00:30:26,710 --> 00:30:25,120 based on a whole host of factors you 783 00:30:28,630 --> 00:30:26,720 know if we do need to roll back to the 784 00:30:29,510 --> 00:30:28,640 vehicle assembly building we could top 785 00:30:31,830 --> 00:30:29,520 off 786 00:30:33,669 --> 00:30:31,840 the batteries for a number of those or 787 00:30:36,070 --> 00:30:33,679 they may not even need to be topped off 788 00:30:37,269 --> 00:30:36,080 based on what we what we believe to be 789 00:30:39,110 --> 00:30:37,279 the known 790 00:30:40,230 --> 00:30:39,120 battery decay rate and battery state of 791 00:30:41,830 --> 00:30:40,240 charge 792 00:30:43,110 --> 00:30:41,840 i i personally haven't seen all that 793 00:30:46,149 --> 00:30:43,120 data 794 00:30:48,470 --> 00:30:46,159 but it is part of the process of of 795 00:30:51,750 --> 00:30:48,480 looking at a given 796 00:30:53,350 --> 00:30:51,760 launch period and and we will uh share 797 00:30:54,630 --> 00:30:53,360 that information with our cubesat 798 00:30:56,870 --> 00:30:54,640 providers and then decide what the 799 00:30:59,350 --> 00:30:56,880 appropriate next steps are um whether or 800 00:31:01,509 --> 00:30:59,360 not any of those uh are at risk at this 801 00:31:03,029 --> 00:31:01,519 point is it's it i don't have the data 802 00:31:04,630 --> 00:31:03,039 in front front of me to answer that 803 00:31:06,710 --> 00:31:04,640 question 804 00:31:08,950 --> 00:31:06,720 thanks mike micah maydenberg with wall 805 00:31:11,190 --> 00:31:08,960 street journal 806 00:31:13,190 --> 00:31:11,200 put your hand hi mike i wanted to follow 807 00:31:15,350 --> 00:31:13,200 up on 808 00:31:16,789 --> 00:31:15,360 that you mentioned 809 00:31:17,990 --> 00:31:16,799 michael made work wall street journal 810 00:31:20,710 --> 00:31:18,000 just back to the introvert 811 00:31:22,149 --> 00:31:20,720 pressurization that was three times 812 00:31:23,029 --> 00:31:22,159 the amount of pressure that was planned 813 00:31:24,549 --> 00:31:23,039 for 814 00:31:26,870 --> 00:31:24,559 could you walk us through sort of what 815 00:31:29,430 --> 00:31:26,880 led up to that and have you seen that 816 00:31:30,870 --> 00:31:29,440 before in practice runs or at the 817 00:31:32,630 --> 00:31:30,880 testing facility 818 00:31:35,590 --> 00:31:32,640 thanks 819 00:31:38,070 --> 00:31:35,600 so um we're still we're still reviewing 820 00:31:38,789 --> 00:31:38,080 um the data and the sequence of events 821 00:31:41,750 --> 00:31:38,799 but 822 00:31:44,789 --> 00:31:41,760 as as i understand it it occurred during 823 00:31:47,269 --> 00:31:44,799 the uh the chill down prior to the 824 00:31:48,789 --> 00:31:47,279 to the loading operation associated with 825 00:31:49,909 --> 00:31:48,799 loading the liquid hydrogen liquid 826 00:31:52,230 --> 00:31:49,919 oxygen 827 00:31:53,350 --> 00:31:52,240 and it was part of the the preparatory 828 00:31:54,870 --> 00:31:53,360 steps 829 00:31:56,549 --> 00:31:54,880 and 830 00:31:58,870 --> 00:31:56,559 there was a 831 00:32:02,630 --> 00:31:58,880 sequence of about a dozen commands 832 00:32:05,350 --> 00:32:02,640 that were required and it was uh simply 833 00:32:10,230 --> 00:32:05,360 the wrong valve was commanded 834 00:32:14,630 --> 00:32:12,389 after about three or four seconds and 835 00:32:15,750 --> 00:32:14,640 then it was rectified so that's that's 836 00:32:17,590 --> 00:32:15,760 what we understand we know what the 837 00:32:19,909 --> 00:32:17,600 pressure profile looked like 838 00:32:23,669 --> 00:32:19,919 at this particular interface 839 00:32:25,830 --> 00:32:23,679 and um we're we're looking at uh again 840 00:32:29,110 --> 00:32:25,840 the the sequence and 841 00:32:31,269 --> 00:32:29,120 and as was mentioned by our our lead 842 00:32:33,190 --> 00:32:31,279 project engineer earlier today 843 00:32:35,990 --> 00:32:33,200 um you know we want we want to be 844 00:32:37,990 --> 00:32:36,000 deliberate and careful about about um 845 00:32:40,630 --> 00:32:38,000 drawing conclusions here because 846 00:32:44,470 --> 00:32:40,640 correlation does not equal causation so 847 00:32:46,789 --> 00:32:44,480 we we are we are taking a look at the 848 00:32:49,269 --> 00:32:46,799 inadvertent overpress 849 00:32:50,549 --> 00:32:49,279 and we're looking at what that meant to 850 00:32:52,070 --> 00:32:50,559 this particular 851 00:32:54,389 --> 00:32:52,080 uh interface 852 00:32:57,590 --> 00:32:54,399 and then we're looking at the fault tree 853 00:33:00,630 --> 00:32:57,600 associated with the 854 00:33:05,590 --> 00:33:00,640 the leak that we saw and if there is 855 00:33:08,870 --> 00:33:05,600 uh a a conjunction of of potential 856 00:33:10,710 --> 00:33:08,880 causes on the fault tree then then we'll 857 00:33:12,870 --> 00:33:10,720 that'll take us down one path 858 00:33:15,190 --> 00:33:12,880 um if 859 00:33:16,230 --> 00:33:15,200 there is no um 860 00:33:18,070 --> 00:33:16,240 you know 861 00:33:19,350 --> 00:33:18,080 root cause that you can trace to that 862 00:33:20,870 --> 00:33:19,360 then then that'll take us down a 863 00:33:23,990 --> 00:33:20,880 different path so again it's a little 864 00:33:26,230 --> 00:33:24,000 early to tell we've we've looked through 865 00:33:27,430 --> 00:33:26,240 um quite a bit of information already 866 00:33:28,310 --> 00:33:27,440 but we've got to work our way through 867 00:33:31,029 --> 00:33:28,320 this one and we're going to do it 868 00:33:31,039 --> 00:33:35,269 jeff faust with space news 869 00:33:39,029 --> 00:33:37,509 jeff house of space news um if the 870 00:33:40,789 --> 00:33:39,039 eastern range allows you to extend the 871 00:33:43,029 --> 00:33:40,799 life of the fts and you're able to do 872 00:33:44,470 --> 00:33:43,039 the repairs on the pad are there any 873 00:33:48,310 --> 00:33:44,480 other factors that would allow you to 874 00:33:52,710 --> 00:33:50,789 i i think what i said earlier is we have 875 00:33:54,710 --> 00:33:52,720 to look at our stay at the pad because 876 00:33:55,750 --> 00:33:54,720 there's um 877 00:33:58,549 --> 00:33:55,760 some 878 00:34:00,230 --> 00:33:58,559 for orion at the crew and service module 879 00:34:01,990 --> 00:34:00,240 there's some constraints that how much 880 00:34:04,230 --> 00:34:02,000 time they can spend at the pad versus 881 00:34:06,310 --> 00:34:04,240 the winds 882 00:34:08,790 --> 00:34:06,320 so we we have to look at that and if 883 00:34:11,430 --> 00:34:08,800 we're within that that would be uh 884 00:34:14,069 --> 00:34:11,440 something we look at as a as a plus side 885 00:34:15,030 --> 00:34:14,079 if we can stay within that analysis 886 00:34:17,109 --> 00:34:15,040 um 887 00:34:18,550 --> 00:34:17,119 but i think ultimately we're driven by 888 00:34:20,710 --> 00:34:18,560 the fts i don't know if you have 889 00:34:23,909 --> 00:34:20,720 anything to add to that mike 890 00:34:29,109 --> 00:34:25,990 we need to we need to look at what 891 00:34:31,270 --> 00:34:29,119 exactly what work exactly we need to do 892 00:34:33,909 --> 00:34:31,280 and and there may be 893 00:34:36,069 --> 00:34:33,919 um depending on on the the fall tree 894 00:34:37,030 --> 00:34:36,079 analysis and and any inspection work 895 00:34:39,190 --> 00:34:37,040 that we do 896 00:34:40,710 --> 00:34:39,200 it may mean that the vehicle assembly 897 00:34:43,829 --> 00:34:40,720 building is the right place to go do 898 00:34:45,109 --> 00:34:43,839 this work um we are mindful that we're 899 00:34:46,829 --> 00:34:45,119 out there in the elements when we're at 900 00:34:51,190 --> 00:34:46,839 the pad 901 00:34:54,310 --> 00:34:51,200 that has a a couple of 902 00:34:55,909 --> 00:34:54,320 of pros and cons associated with it um 903 00:34:57,750 --> 00:34:55,919 you know the cons 904 00:34:59,430 --> 00:34:57,760 happen pretty much every afternoon 905 00:35:00,870 --> 00:34:59,440 around here when you get a shower or 906 00:35:04,390 --> 00:35:00,880 thunderstorm rolling through and we 907 00:35:05,750 --> 00:35:04,400 don't wanna we don't want to 908 00:35:08,390 --> 00:35:05,760 you know have 909 00:35:10,310 --> 00:35:08,400 uh you know issues with that interface 910 00:35:12,710 --> 00:35:10,320 because we de-made it out there in the 911 00:35:15,349 --> 00:35:12,720 uh in the uh 912 00:35:16,550 --> 00:35:15,359 in the uh in the environment so 913 00:35:18,950 --> 00:35:16,560 we're going to talk through all those 914 00:35:21,349 --> 00:35:18,960 things i i think it's again a little bit 915 00:35:23,829 --> 00:35:21,359 early to say as to what the right path 916 00:35:25,270 --> 00:35:23,839 forward is a flight termination system 917 00:35:27,510 --> 00:35:25,280 is certainly one variable that we've got 918 00:35:29,589 --> 00:35:27,520 to consider as part of all this and as 919 00:35:31,190 --> 00:35:29,599 jim said earlier the range has 920 00:35:33,910 --> 00:35:31,200 in the space force have been fantastic 921 00:35:36,870 --> 00:35:33,920 partners working with us as part of our 922 00:35:38,710 --> 00:35:36,880 government interagency work um we don't 923 00:35:41,829 --> 00:35:38,720 own that decision the range owns that 924 00:35:43,190 --> 00:35:41,839 decision uh so we would have to to work 925 00:35:45,829 --> 00:35:43,200 with them and talk to them before any 926 00:35:50,150 --> 00:35:45,839 decisions are made 927 00:35:53,750 --> 00:35:51,990 thank you hi marina corn with the 928 00:35:55,589 --> 00:35:53,760 atlantic are you at all considering 929 00:35:57,910 --> 00:35:55,599 doing another wet dress rehearsal after 930 00:35:59,270 --> 00:35:57,920 you've implemented some repairs instead 931 00:36:00,310 --> 00:35:59,280 of going right into another launch 932 00:36:01,829 --> 00:36:00,320 attempt 933 00:36:03,910 --> 00:36:01,839 the administrator said earlier we're not 934 00:36:05,270 --> 00:36:03,920 going to launch until it's right so in 935 00:36:07,109 --> 00:36:05,280 order to get to that point is there 936 00:36:09,270 --> 00:36:07,119 anything that would make you say okay 937 00:36:11,430 --> 00:36:09,280 let's go back we're going to test until 938 00:36:13,990 --> 00:36:11,440 it's right thank you 939 00:36:16,069 --> 00:36:14,000 yeah i guess what i'd say is uh you know 940 00:36:18,630 --> 00:36:16,079 whatever this the connection that we 941 00:36:20,310 --> 00:36:18,640 we're testing under under ambient it's 942 00:36:23,109 --> 00:36:20,320 going to be acts a lot different than 943 00:36:24,950 --> 00:36:23,119 cryogens we've tested this one in our 944 00:36:27,589 --> 00:36:24,960 wet dress rehearsal for 945 00:36:30,550 --> 00:36:27,599 this sealed at four 946 00:36:33,270 --> 00:36:30,560 we saw it manageable the other day so to 947 00:36:35,430 --> 00:36:33,280 us you know it it's uh 948 00:36:36,870 --> 00:36:35,440 we hydrogen's difficult to work with i 949 00:36:39,430 --> 00:36:36,880 think mike characterized at a couple 950 00:36:42,230 --> 00:36:39,440 press conferences ago 951 00:36:44,230 --> 00:36:42,240 so from our perspective we may look at 952 00:36:46,150 --> 00:36:44,240 in these options when we stay at the pad 953 00:36:48,630 --> 00:36:46,160 if we change it at the pad do we do that 954 00:36:51,349 --> 00:36:48,640 cryogenic test there 955 00:36:53,510 --> 00:36:51,359 and what that cryogenic test consists of 956 00:36:54,550 --> 00:36:53,520 is is tbd that's what the team will come 957 00:36:56,550 --> 00:36:54,560 up with 958 00:36:58,870 --> 00:36:56,560 but from my perspective we tested this 959 00:37:00,550 --> 00:36:58,880 at a wet dress so to say hey we should 960 00:37:03,670 --> 00:37:00,560 have done another wet dress this one 961 00:37:05,430 --> 00:37:03,680 this one sealed at the wet dress um you 962 00:37:06,390 --> 00:37:05,440 know i will take everybody back i think 963 00:37:08,710 --> 00:37:06,400 it uh 964 00:37:10,069 --> 00:37:08,720 the summer of 1990 was the summer of 965 00:37:11,750 --> 00:37:10,079 hydrogen where 966 00:37:12,790 --> 00:37:11,760 shuttle had been launching for nine 967 00:37:14,390 --> 00:37:12,800 years 968 00:37:16,069 --> 00:37:14,400 and they spent a whole summer chasing 969 00:37:18,790 --> 00:37:16,079 hydrogen leaks 970 00:37:20,550 --> 00:37:18,800 so um i'm not saying that's an excuse 971 00:37:21,829 --> 00:37:20,560 that's just a fact 972 00:37:23,589 --> 00:37:21,839 and we've seen a couple different 973 00:37:25,349 --> 00:37:23,599 hydrogen leaks i think we're trying to 974 00:37:27,670 --> 00:37:25,359 dial this vehicle in 975 00:37:29,349 --> 00:37:27,680 um whatever this fault was we have to 976 00:37:31,030 --> 00:37:29,359 find out and we will run it to ground 977 00:37:33,349 --> 00:37:31,040 and build that confidence that i talked 978 00:37:35,270 --> 00:37:33,359 about earlier to come out there again if 979 00:37:37,109 --> 00:37:35,280 if the team says hey a wet dress is the 980 00:37:38,150 --> 00:37:37,119 way to go then we need to figure that 981 00:37:39,910 --> 00:37:38,160 out 982 00:37:42,390 --> 00:37:39,920 but right now from my perspective we've 983 00:37:44,550 --> 00:37:42,400 tested this it's worked a couple times 984 00:37:45,990 --> 00:37:44,560 and it didn't today we'll figure out the 985 00:37:47,829 --> 00:37:46,000 reason why 986 00:37:49,430 --> 00:37:47,839 the only thing i would add is 987 00:37:52,550 --> 00:37:49,440 we know we don't need to do a full wet 988 00:37:54,630 --> 00:37:52,560 dress rehearsal if we were to 989 00:37:57,109 --> 00:37:54,640 test out this interface we for example 990 00:37:58,950 --> 00:37:57,119 we don't need to load the interim crawl 991 00:38:01,030 --> 00:37:58,960 propulsion stage or the upper stage we 992 00:38:05,109 --> 00:38:01,040 know that those interfaces are fine 993 00:38:07,030 --> 00:38:05,119 so if if we were to do a a cryo test at 994 00:38:09,349 --> 00:38:07,040 this particular interface after some 995 00:38:10,950 --> 00:38:09,359 work is done at the pad 996 00:38:12,630 --> 00:38:10,960 we don't need to do 997 00:38:16,230 --> 00:38:12,640 a full up wet dress rehearsal if that 998 00:38:22,870 --> 00:38:17,510 next up we have another question on the 999 00:38:27,430 --> 00:38:25,109 um 1000 00:38:30,230 --> 00:38:27,440 serafin you talked about 1001 00:38:31,030 --> 00:38:30,240 it being inadvertent was that software 1002 00:38:33,750 --> 00:38:31,040 that 1003 00:38:35,670 --> 00:38:33,760 caused the over pressurization and 1004 00:38:38,310 --> 00:38:35,680 is that something you've not seen other 1005 00:38:40,310 --> 00:38:38,320 times when you're doing the pre-chill 1006 00:38:42,390 --> 00:38:40,320 and i take it from your earlier answer 1007 00:38:43,910 --> 00:38:42,400 soft goods uh that you're considering 1008 00:38:46,550 --> 00:38:43,920 that the over-pressurization may have 1009 00:38:50,150 --> 00:38:46,560 affected our gaskets o-rings anything 1010 00:38:55,589 --> 00:38:51,910 yeah so the the first part of that 1011 00:38:57,670 --> 00:38:55,599 question uh the inadvertent command 1012 00:38:59,510 --> 00:38:57,680 and overpress 1013 00:39:01,510 --> 00:38:59,520 again it's it's a little bit early to 1014 00:39:03,270 --> 00:39:01,520 tell exactly what happened we're still 1015 00:39:05,829 --> 00:39:03,280 working our way through but we do know 1016 00:39:06,710 --> 00:39:05,839 with this was a manual sequence 1017 00:39:10,150 --> 00:39:06,720 and 1018 00:39:14,710 --> 00:39:11,990 the fact that we didn't 1019 00:39:17,430 --> 00:39:14,720 automate this particular sequence 1020 00:39:18,870 --> 00:39:17,440 um that could have been part of the part 1021 00:39:21,270 --> 00:39:18,880 of the 1022 00:39:22,870 --> 00:39:21,280 reason that we had the uh the uh 1023 00:39:23,670 --> 00:39:22,880 inadvertent overpressure 1024 00:39:25,910 --> 00:39:23,680 there 1025 00:39:29,270 --> 00:39:25,920 are a whole host of other reasons that 1026 00:39:31,829 --> 00:39:29,280 um you know when when you're an operator 1027 00:39:33,910 --> 00:39:31,839 and and you're working through opera 1028 00:39:35,430 --> 00:39:33,920 a command sequence that could have also 1029 00:39:36,470 --> 00:39:35,440 come into play so we're just going to 1030 00:39:37,990 --> 00:39:36,480 take time and look through it we're 1031 00:39:40,230 --> 00:39:38,000 going to look through the data 1032 00:39:42,390 --> 00:39:40,240 and and we will we will 1033 00:39:44,710 --> 00:39:42,400 go back and reassess exactly 1034 00:39:46,550 --> 00:39:44,720 why this inadvertent command happened 1035 00:39:48,790 --> 00:39:46,560 in terms of soft goods yes it's 1036 00:39:50,349 --> 00:39:48,800 basically a a seal 1037 00:39:52,630 --> 00:39:50,359 that is that is a 1038 00:39:54,069 --> 00:39:52,640 non-non-metallic material i i don't 1039 00:39:57,349 --> 00:39:54,079 remember what the the particular 1040 00:40:00,230 --> 00:39:57,359 material is but yes that's what we mean 1041 00:40:01,589 --> 00:40:00,240 or what i mean when i say soft goods 1042 00:40:03,829 --> 00:40:01,599 thanks mike 1043 00:40:05,750 --> 00:40:03,839 irene klotz with aviation week 1044 00:40:06,550 --> 00:40:05,760 thanks um i think this is probably for 1045 00:40:09,349 --> 00:40:06,560 mike 1046 00:40:10,630 --> 00:40:09,359 um there was a some time between the 1047 00:40:12,790 --> 00:40:10,640 recommendation 1048 00:40:14,710 --> 00:40:12,800 to scrub and when charlie decided to 1049 00:40:16,550 --> 00:40:14,720 call it a day 1050 00:40:19,349 --> 00:40:16,560 was there additional troubleshooting 1051 00:40:22,230 --> 00:40:19,359 that was being discussed as an 1052 00:40:24,790 --> 00:40:22,240 as an option is there anything else that 1053 00:40:27,270 --> 00:40:24,800 was gleaned uh from the activities that 1054 00:40:29,589 --> 00:40:27,280 took place today and then separately is 1055 00:40:32,150 --> 00:40:29,599 the sensor issue that we were here 1056 00:40:33,670 --> 00:40:32,160 talking about a couple days ago is that 1057 00:40:36,550 --> 00:40:33,680 a factor at all in any of these 1058 00:40:38,790 --> 00:40:36,560 scenarios thanks 1059 00:40:40,550 --> 00:40:38,800 i'll start with your last question uh 1060 00:40:42,470 --> 00:40:40,560 the short answer is no the sensor issue 1061 00:40:44,710 --> 00:40:42,480 that we saw the other day it's that is 1062 00:40:46,309 --> 00:40:44,720 on the engine side as part of the engine 1063 00:40:49,430 --> 00:40:46,319 bleed that's used to thermally condition 1064 00:40:54,390 --> 00:40:52,630 to address it during this oh um 1065 00:40:57,270 --> 00:40:54,400 no that that really hasn't entered into 1066 00:40:59,430 --> 00:40:57,280 the into the discussion um in terms of 1067 00:41:02,230 --> 00:40:59,440 additional troubleshooting 1068 00:41:03,829 --> 00:41:02,240 there was a pause before a scrub was 1069 00:41:05,750 --> 00:41:03,839 declared just to ensure that we had 1070 00:41:08,870 --> 00:41:05,760 exhausted all of our options 1071 00:41:10,790 --> 00:41:08,880 and and we had um some discussions come 1072 00:41:13,030 --> 00:41:10,800 from our from our engineering team as to 1073 00:41:15,109 --> 00:41:13,040 what a potential um 1074 00:41:17,109 --> 00:41:15,119 option may be and it and it turned out 1075 00:41:19,589 --> 00:41:17,119 to not not be a viable option so there 1076 00:41:21,990 --> 00:41:19,599 were there were some ongoing discussions 1077 00:41:23,670 --> 00:41:22,000 to ensure that 1078 00:41:25,349 --> 00:41:23,680 we had really exhausted all of our 1079 00:41:26,950 --> 00:41:25,359 options and and that's why there was a 1080 00:41:30,870 --> 00:41:26,960 little bit of a pause towards the end 1081 00:41:36,150 --> 00:41:34,470 here in the second row 1082 00:41:38,790 --> 00:41:36,160 hi my name is jacob sedessie i'm a 1083 00:41:40,470 --> 00:41:38,800 student tech reporter at wuft news out 1084 00:41:43,430 --> 00:41:40,480 of the university of florida i have two 1085 00:41:44,950 --> 00:41:43,440 questions uh one so i know i heard 1086 00:41:47,430 --> 00:41:44,960 earlier that 1087 00:41:50,230 --> 00:41:47,440 the temperature affects how the rocket 1088 00:41:52,870 --> 00:41:50,240 launch goes in some ways so as summer 1089 00:41:56,069 --> 00:41:52,880 goes into fall goes into winter how is 1090 00:41:58,470 --> 00:41:56,079 this mission going to need to be adapted 1091 00:41:59,990 --> 00:41:58,480 going forward this far into the future 1092 00:42:01,430 --> 00:42:00,000 and second of all i know it's one you're 1093 00:42:03,190 --> 00:42:01,440 not going to want to hear right now but 1094 00:42:05,190 --> 00:42:03,200 i want to ask it anyway 1095 00:42:07,190 --> 00:42:05,200 how does this push back affect the 1096 00:42:08,550 --> 00:42:07,200 timeline of the artemis program as a 1097 00:42:10,710 --> 00:42:08,560 whole 1098 00:42:15,190 --> 00:42:10,720 i'll take the second one 1099 00:42:19,109 --> 00:42:15,200 we are still planning artemis 2 in 2024 1100 00:42:20,950 --> 00:42:19,119 and artemis iii in 25. 1101 00:42:23,990 --> 00:42:20,960 okay and then in terms of temperature 1102 00:42:26,150 --> 00:42:24,000 effects because we have a combination of 1103 00:42:28,309 --> 00:42:26,160 of solid propellant 1104 00:42:31,990 --> 00:42:28,319 in the boosters and liquid propellant in 1105 00:42:34,390 --> 00:42:32,000 the core stage the core stage really has 1106 00:42:36,390 --> 00:42:34,400 no significant impact 1107 00:42:38,870 --> 00:42:36,400 due to temperature other than 1108 00:42:40,470 --> 00:42:38,880 what we call the boil off which is 1109 00:42:42,390 --> 00:42:40,480 you 1110 00:42:44,790 --> 00:42:42,400 cause the the propellant to go from a 1111 00:42:48,069 --> 00:42:44,800 liquid to a gas and and you're not able 1112 00:42:49,030 --> 00:42:48,079 to feed the engines um as part of that 1113 00:42:50,950 --> 00:42:49,040 that is 1114 00:42:53,430 --> 00:42:50,960 there's essentially no effect associated 1115 00:42:55,750 --> 00:42:53,440 with that um because 1116 00:42:57,990 --> 00:42:55,760 it is this is the as we go from summer 1117 00:43:00,550 --> 00:42:58,000 into the fall months 1118 00:43:01,349 --> 00:43:00,560 because you load the cryo and then you 1119 00:43:04,710 --> 00:43:01,359 go 1120 00:43:06,150 --> 00:43:04,720 and and you ensure that the tank is full 1121 00:43:08,630 --> 00:43:06,160 before you go 1122 00:43:11,990 --> 00:43:08,640 in terms of the solid 1123 00:43:14,550 --> 00:43:12,000 propulsion system the lower the bulk 1124 00:43:16,069 --> 00:43:14,560 temperature of the propellant the lower 1125 00:43:18,470 --> 00:43:16,079 the performance you get and we know what 1126 00:43:20,470 --> 00:43:18,480 the performance characteristics of this 1127 00:43:21,829 --> 00:43:20,480 these particular boosters are and 1128 00:43:23,270 --> 00:43:21,839 they've been tested throughout the full 1129 00:43:24,150 --> 00:43:23,280 range 1130 00:43:30,069 --> 00:43:24,160 the 1131 00:43:31,190 --> 00:43:30,079 performance will be slightly lower in 1132 00:43:33,190 --> 00:43:31,200 the fall 1133 00:43:35,109 --> 00:43:33,200 but when we looked at our performance 1134 00:43:39,030 --> 00:43:35,119 numbers they were eye watering in terms 1135 00:43:40,870 --> 00:43:39,040 of margin to our insertion altitude 1136 00:43:42,710 --> 00:43:40,880 that we were planning so we're not 1137 00:43:46,470 --> 00:43:42,720 particularly concerned with with 1138 00:43:46,480 --> 00:43:52,069 in the back here behind joey 1139 00:43:56,390 --> 00:43:54,790 thank you manuel masanti from devate um 1140 00:43:58,309 --> 00:43:56,400 given these two cancellations some 1141 00:44:00,069 --> 00:43:58,319 further delays i would like to know how 1142 00:44:02,230 --> 00:44:00,079 this affect the other payload on board 1143 00:44:04,230 --> 00:44:02,240 like the 10 cubesats that we have is 1144 00:44:06,870 --> 00:44:04,240 there any reason that we need to change 1145 00:44:11,589 --> 00:44:06,880 battery changes or how these affect the 1146 00:44:17,510 --> 00:44:13,990 i i think we answered the the cubesat 1147 00:44:20,309 --> 00:44:17,520 question earlier um we know that we have 1148 00:44:23,030 --> 00:44:20,319 limited battery life on the cubesats and 1149 00:44:24,710 --> 00:44:23,040 and we understand what the decay rate is 1150 00:44:27,829 --> 00:44:24,720 uh the customers 1151 00:44:28,630 --> 00:44:27,839 of the cubesats uh have been made aware 1152 00:44:32,950 --> 00:44:28,640 of 1153 00:44:35,190 --> 00:44:32,960 access is 1154 00:44:37,030 --> 00:44:35,200 before the cubesats were reloaded we 1155 00:44:38,069 --> 00:44:37,040 also have payloads inside the orion 1156 00:44:39,990 --> 00:44:38,079 capsule 1157 00:44:43,349 --> 00:44:40,000 things like radiation monitors and a 1158 00:44:44,309 --> 00:44:43,359 number of other things and we know 1159 00:44:46,550 --> 00:44:44,319 what the 1160 00:44:47,349 --> 00:44:46,560 the installed or baseline configuration 1161 00:44:48,710 --> 00:44:47,359 was 1162 00:44:51,109 --> 00:44:48,720 obviously the longer you sit out there 1163 00:44:53,030 --> 00:44:51,119 on the pad the more radiation some of 1164 00:44:55,109 --> 00:44:53,040 these sensors will accrue 1165 00:44:57,270 --> 00:44:55,119 but we also have witness 1166 00:44:59,190 --> 00:44:57,280 sensors in there to help us understand 1167 00:45:00,870 --> 00:44:59,200 what what we accumulated during the 1168 00:45:02,550 --> 00:45:00,880 space flight portion as opposed to here 1169 00:45:04,790 --> 00:45:02,560 on the ground so 1170 00:45:06,790 --> 00:45:04,800 you know there are a whole host of of 1171 00:45:09,109 --> 00:45:06,800 things that we that we plan ahead and 1172 00:45:09,910 --> 00:45:09,119 track and at this point you know that 1173 00:45:14,790 --> 00:45:09,920 we're 1174 00:45:16,710 --> 00:45:14,800 vehicle ready uh and where we understand 1175 00:45:18,630 --> 00:45:16,720 what the potential impacts are to the 1176 00:45:21,589 --> 00:45:18,640 payloads and and the cubesats whether 1177 00:45:23,109 --> 00:45:21,599 they're uh in orion or or on the space 1178 00:45:26,230 --> 00:45:23,119 launch system rocket is part of the 10 1179 00:45:28,230 --> 00:45:26,240 cubesats so um 1180 00:45:30,470 --> 00:45:28,240 right yeah i i think i think we've 1181 00:45:34,390 --> 00:45:30,480 talked that so 1182 00:45:36,710 --> 00:45:34,400 here in the second row hi um wuft at the 1183 00:45:39,829 --> 00:45:36,720 university of florida uh my question is 1184 00:45:42,069 --> 00:45:39,839 uh for the senator um 1185 00:45:43,990 --> 00:45:42,079 we understand that you know 1186 00:45:46,710 --> 00:45:44,000 you're not going until you're ready and 1187 00:45:48,470 --> 00:45:46,720 it is and that it's right um 1188 00:45:51,109 --> 00:45:48,480 and we know that scrubs are a very 1189 00:45:54,069 --> 00:45:51,119 natural part of all of the space 1190 00:45:55,270 --> 00:45:54,079 missions uh that said i gotta believe 1191 00:45:56,870 --> 00:45:55,280 that there's some level of 1192 00:46:00,309 --> 00:45:56,880 disappointment can you describe the 1193 00:46:02,870 --> 00:46:00,319 demeanor inside the lcc and specifically 1194 00:46:05,190 --> 00:46:02,880 how's um charlie blackwell thompson and 1195 00:46:08,230 --> 00:46:05,200 and what did you say to her today 1196 00:46:11,349 --> 00:46:08,240 um you know after the decision to scrub 1197 00:46:12,550 --> 00:46:11,359 the demeanor in the lcc is very 1198 00:46:14,630 --> 00:46:12,560 professional 1199 00:46:15,910 --> 00:46:14,640 they do their job 1200 00:46:18,150 --> 00:46:15,920 naturally 1201 00:46:19,430 --> 00:46:18,160 all of us no 1202 00:46:23,109 --> 00:46:19,440 no more than 1203 00:46:26,230 --> 00:46:23,119 than all of us including the lcc 1204 00:46:28,630 --> 00:46:26,240 wanted it to go today 1205 00:46:30,069 --> 00:46:28,640 but we also 1206 00:46:32,630 --> 00:46:30,079 and these guys that are the 1207 00:46:38,470 --> 00:46:32,640 professionals know 1208 00:46:42,550 --> 00:46:40,470 anything um did you share any private 1209 00:46:43,589 --> 00:46:42,560 moments with charlie how she holding up 1210 00:46:46,230 --> 00:46:43,599 anybody 1211 00:46:48,950 --> 00:46:46,240 any comments to you know 1212 00:46:50,470 --> 00:46:48,960 keep her and her team motive i mean 1213 00:46:52,390 --> 00:46:50,480 everybody's motivated but any other 1214 00:46:57,030 --> 00:46:52,400 comments that you can share 1215 00:46:59,910 --> 00:46:57,040 i will say this before mike answers that 1216 00:47:02,550 --> 00:46:59,920 this team is very aware 1217 00:47:04,550 --> 00:47:02,560 of potential fatigue 1218 00:47:07,270 --> 00:47:04,560 and therefore 1219 00:47:08,950 --> 00:47:07,280 they gave sufficient time off for the 1220 00:47:12,230 --> 00:47:08,960 team 1221 00:47:15,270 --> 00:47:12,240 yesterday after the mmt uh which 1222 00:47:16,230 --> 00:47:15,280 occurred uh i think two days ago l minus 1223 00:47:19,190 --> 00:47:16,240 two 1224 00:47:22,470 --> 00:47:19,200 uh they gave everybody the day off 1225 00:47:24,870 --> 00:47:22,480 so they could regroup and and rest 1226 00:47:29,030 --> 00:47:24,880 uh and that's uh part of the lessons 1227 00:47:32,630 --> 00:47:29,040 that came out of the challenger report 1228 00:47:33,430 --> 00:47:32,640 fatigue was a factor there 1229 00:47:36,549 --> 00:47:33,440 right 1230 00:47:38,790 --> 00:47:36,559 yeah in terms of the firing room and and 1231 00:47:41,109 --> 00:47:38,800 charlie in particular uh you know one of 1232 00:47:42,549 --> 00:47:41,119 the things that's 1233 00:47:44,470 --> 00:47:42,559 one of the one of the things that i 1234 00:47:47,190 --> 00:47:44,480 particularly enjoy about the agency is 1235 00:47:49,510 --> 00:47:47,200 you surround yourself with amazingly 1236 00:47:51,030 --> 00:47:49,520 capable people and and some amazing 1237 00:47:52,470 --> 00:47:51,040 leadership and charlie's certainly one 1238 00:47:54,069 --> 00:47:52,480 of those amazing leaders that we have in 1239 00:47:55,670 --> 00:47:54,079 the agency 1240 00:47:57,670 --> 00:47:55,680 when i uh 1241 00:47:58,710 --> 00:47:57,680 was talking to her about the scrub 1242 00:48:00,870 --> 00:47:58,720 decision 1243 00:48:02,230 --> 00:48:00,880 she was focused head in the game 1244 00:48:03,109 --> 00:48:02,240 she was 1245 00:48:06,630 --> 00:48:03,119 you know 1246 00:48:08,309 --> 00:48:06,640 focused on the operation and the flight 1247 00:48:10,790 --> 00:48:08,319 hardware and 1248 00:48:12,710 --> 00:48:10,800 uh safing the vehicle and ensuring that 1249 00:48:13,829 --> 00:48:12,720 our team had what they need had what 1250 00:48:15,750 --> 00:48:13,839 they needed 1251 00:48:16,950 --> 00:48:15,760 uh to uh to get through the remaining 1252 00:48:19,270 --> 00:48:16,960 operation 1253 00:48:20,390 --> 00:48:19,280 and uh you know 1254 00:48:22,309 --> 00:48:20,400 there's 1255 00:48:24,390 --> 00:48:22,319 that's that's kind of natural when you 1256 00:48:26,309 --> 00:48:24,400 come from the operations realm 1257 00:48:27,910 --> 00:48:26,319 uh you know there's there's definitely 1258 00:48:29,829 --> 00:48:27,920 time to reflect 1259 00:48:32,309 --> 00:48:29,839 uh on that after you come out of the 1260 00:48:33,829 --> 00:48:32,319 firing room on the drive home or once 1261 00:48:35,829 --> 00:48:33,839 you're home but 1262 00:48:37,589 --> 00:48:35,839 that was neither the time near the place 1263 00:48:39,750 --> 00:48:37,599 and she didn't show any inkling that she 1264 00:48:40,950 --> 00:48:39,760 was focused on anything other 1265 00:48:43,109 --> 00:48:40,960 than 1266 00:48:44,790 --> 00:48:43,119 the right decisions for her team and for 1267 00:48:47,589 --> 00:48:44,800 the for the spacecraft and for the 1268 00:48:47,599 --> 00:48:52,870 marcia smith the space policy online 1269 00:48:56,549 --> 00:48:54,109 marcia smith 1270 00:48:58,309 --> 00:48:56,559 spacepolicyonline.com uh jim and mike i 1271 00:49:00,069 --> 00:48:58,319 know you've both discussed this already 1272 00:49:01,670 --> 00:49:00,079 a couple times but i'm still unclear 1273 00:49:03,349 --> 00:49:01,680 about the decision as to whether or not 1274 00:49:05,109 --> 00:49:03,359 you're going to roll back jim i heard 1275 00:49:07,990 --> 00:49:05,119 you say you must roll back because of 1276 00:49:09,510 --> 00:49:08,000 the fts batteries mike i heard you say 1277 00:49:11,750 --> 00:49:09,520 if you roll back then you might be able 1278 00:49:13,190 --> 00:49:11,760 to recharge the cubesats you talked 1279 00:49:15,270 --> 00:49:13,200 about how you might have several you 1280 00:49:16,870 --> 00:49:15,280 think you have several weeks of work so 1281 00:49:18,790 --> 00:49:16,880 if you were to go to the range and ask 1282 00:49:20,950 --> 00:49:18,800 them to give you another waiver for the 1283 00:49:22,230 --> 00:49:20,960 sts it's not just a couple days it's 1284 00:49:23,109 --> 00:49:22,240 several weeks 1285 00:49:27,510 --> 00:49:23,119 so 1286 00:49:29,670 --> 00:49:27,520 and concisely say 1287 00:49:31,750 --> 00:49:29,680 are you rolling back or not or when will 1288 00:49:33,910 --> 00:49:31,760 you make a decision and is the fts 1289 00:49:35,990 --> 00:49:33,920 battery the only thing that stands in 1290 00:49:38,390 --> 00:49:36,000 your way of rolling back or not 1291 00:49:41,589 --> 00:49:38,400 we don't have an fts 1292 00:49:43,829 --> 00:49:41,599 waiver right now beyond 25 days 1293 00:49:45,109 --> 00:49:43,839 so until we have that we have to roll 1294 00:49:46,470 --> 00:49:45,119 back 1295 00:49:49,030 --> 00:49:46,480 in order to 1296 00:49:51,589 --> 00:49:49,040 to satisfy the range requirement 1297 00:49:52,790 --> 00:49:51,599 we i said we'll work with the range to 1298 00:49:54,710 --> 00:49:52,800 to 1299 00:49:57,190 --> 00:49:54,720 try and get that 1300 00:49:59,109 --> 00:49:57,200 but we have to decide what it is 1301 00:50:01,750 --> 00:49:59,119 what the duration we want based on the 1302 00:50:04,309 --> 00:50:01,760 launch period availability we have 1303 00:50:06,309 --> 00:50:04,319 and what they're willing to give us 1304 00:50:07,910 --> 00:50:06,319 so that negotiation hasn't happened so 1305 00:50:08,710 --> 00:50:07,920 as far as i'm concerned we have to roll 1306 00:50:10,069 --> 00:50:08,720 back 1307 00:50:11,349 --> 00:50:10,079 because we have to satisfy that 1308 00:50:13,829 --> 00:50:11,359 requirement 1309 00:50:16,230 --> 00:50:13,839 um that's where i think mike's if 1310 00:50:18,549 --> 00:50:16,240 statement comes from because we we there 1311 00:50:19,750 --> 00:50:18,559 is a possibility but we don't have that 1312 00:50:21,990 --> 00:50:19,760 today 1313 00:50:23,910 --> 00:50:22,000 and i'll just be upfront with you i 1314 00:50:25,349 --> 00:50:23,920 don't always pick the best words right 1315 00:50:27,349 --> 00:50:25,359 and and 1316 00:50:28,390 --> 00:50:27,359 and i i could have 1317 00:50:29,750 --> 00:50:28,400 chosen 1318 00:50:34,470 --> 00:50:29,760 a better 1319 00:50:36,950 --> 00:50:34,480 case and and jim is absolutely right it 1320 00:50:38,549 --> 00:50:36,960 is it is not our decision it is the 1321 00:50:40,069 --> 00:50:38,559 range's decision 1322 00:50:42,309 --> 00:50:40,079 they're the ones responsible for 1323 00:50:43,430 --> 00:50:42,319 managing public safety so 1324 00:50:44,950 --> 00:50:43,440 um 1325 00:50:47,030 --> 00:50:44,960 when we roll back 1326 00:50:49,910 --> 00:50:47,040 unless we get a waiver 1327 00:50:53,190 --> 00:50:49,920 it's it's it is a rollback scenario so 1328 00:50:54,390 --> 00:50:53,200 um i i said if and i apologize for that 1329 00:50:55,670 --> 00:50:54,400 i probably could have chosen better 1330 00:50:56,950 --> 00:50:55,680 words 1331 00:50:59,190 --> 00:50:56,960 if that's the hardest thing i had to 1332 00:51:03,109 --> 00:50:59,200 deal with today then 1333 00:51:03,119 --> 00:51:06,870 here in the back 1334 00:51:11,829 --> 00:51:09,030 good afternoon liz hurley waff 1335 00:51:14,230 --> 00:51:11,839 huntsville my question can be for any or 1336 00:51:15,990 --> 00:51:14,240 all of you all can you talk to me about 1337 00:51:19,109 --> 00:51:16,000 actual costs 1338 00:51:21,349 --> 00:51:19,119 of two back-to-back scrubs 1339 00:51:23,430 --> 00:51:21,359 and do you feel there's a cost to public 1340 00:51:24,790 --> 00:51:23,440 perception there was so much build up to 1341 00:51:26,790 --> 00:51:24,800 this launch 1342 00:51:29,270 --> 00:51:26,800 so many people came to florida to spend 1343 00:51:31,030 --> 00:51:29,280 a week hoping they'd get to see a moon 1344 00:51:33,190 --> 00:51:31,040 rocket fly 1345 00:51:36,630 --> 00:51:33,200 is there something that you're looking 1346 00:51:39,270 --> 00:51:36,640 at now regarding the public 1347 00:51:49,990 --> 00:51:39,280 you all talk about the back-to-back cost 1348 00:51:54,549 --> 00:51:52,710 you know space is the place 1349 00:51:55,589 --> 00:51:54,559 everybody is 1350 00:51:58,549 --> 00:51:55,599 really 1351 00:52:01,349 --> 00:51:58,559 interested in this mission and going 1352 00:52:03,190 --> 00:52:01,359 back to mars and getting ready to go 1353 00:52:06,630 --> 00:52:03,200 uh going back to the moon and getting 1354 00:52:10,470 --> 00:52:08,309 one of the things 1355 00:52:14,390 --> 00:52:10,480 that we did 1356 00:52:16,950 --> 00:52:14,400 early on was we tried to stress that 1357 00:52:20,790 --> 00:52:16,960 this is a test 1358 00:52:22,710 --> 00:52:20,800 and a test has certain risk 1359 00:52:25,910 --> 00:52:22,720 and uh 1360 00:52:27,670 --> 00:52:25,920 we pounded that in every public comment 1361 00:52:31,589 --> 00:52:27,680 that we had 1362 00:52:35,829 --> 00:52:31,599 in order to get expectations 1363 00:52:40,630 --> 00:52:38,870 and yet human nature is what you know it 1364 00:52:43,589 --> 00:52:40,640 is 1365 00:52:46,150 --> 00:52:43,599 people are ready 1366 00:52:47,750 --> 00:52:46,160 you saw the crowds out here on monday 1367 00:52:51,829 --> 00:52:47,760 morning 1368 00:52:57,270 --> 00:52:54,069 however 1369 00:53:02,069 --> 00:52:57,280 the nature of humans is that 1370 00:53:03,430 --> 00:53:02,079 we want to see it and participate in it 1371 00:53:06,549 --> 00:53:03,440 and 1372 00:53:08,470 --> 00:53:06,559 despite all that 1373 00:53:10,870 --> 00:53:08,480 that's why these guys are such 1374 00:53:12,230 --> 00:53:10,880 consummate professionals 1375 00:53:13,430 --> 00:53:12,240 they do it 1376 00:53:15,990 --> 00:53:13,440 by the book 1377 00:53:18,630 --> 00:53:16,000 and when it's ready 1378 00:53:19,910 --> 00:53:18,640 and as far as costs i mean i i can't 1379 00:53:20,710 --> 00:53:19,920 give you a number i can tell you the 1380 00:53:22,790 --> 00:53:20,720 cost 1381 00:53:24,950 --> 00:53:22,800 there's commodities we use with oxygen 1382 00:53:26,790 --> 00:53:24,960 and hydrogen we do try and recover some 1383 00:53:28,870 --> 00:53:26,800 of those as we drain back into our 1384 00:53:31,270 --> 00:53:28,880 supply tanks but a lot of those cryogens 1385 00:53:34,309 --> 00:53:31,280 boil off so we have to have them topped 1386 00:53:36,230 --> 00:53:34,319 off i forget how many tankers we had 1387 00:53:38,630 --> 00:53:36,240 after monday's attempt uh 1388 00:53:41,270 --> 00:53:38,640 exactly i think uh we had like five or 1389 00:53:43,270 --> 00:53:41,280 six waves is remember uh charlie talking 1390 00:53:45,190 --> 00:53:43,280 about but the exact cost of that oxygen 1391 00:53:49,750 --> 00:53:45,200 hydrogen i i can't tell you off the top 1392 00:53:54,309 --> 00:53:51,910 yeah i can't i can't tell you that off 1393 00:53:57,670 --> 00:53:54,319 the top of my head you know it's i go to 1394 00:53:59,670 --> 00:53:57,680 commodities first um and uh and 1395 00:54:02,470 --> 00:53:59,680 obviously you know we we schedule up 1396 00:54:04,390 --> 00:54:02,480 resources to to provide the common 1397 00:54:05,349 --> 00:54:04,400 tracking for for us 1398 00:54:07,430 --> 00:54:05,359 um 1399 00:54:09,670 --> 00:54:07,440 and then the the labor of the folks here 1400 00:54:11,510 --> 00:54:09,680 but the fo that labor folks are working 1401 00:54:13,510 --> 00:54:11,520 on anyway but so it's probably some of 1402 00:54:15,670 --> 00:54:13,520 the assets that aren't ours that are 1403 00:54:17,510 --> 00:54:15,680 outside of nasa's control and the liquid 1404 00:54:18,950 --> 00:54:17,520 oxygen and hydrogen but i'm sorry i 1405 00:54:22,230 --> 00:54:18,960 can't tell you what a number off top of 1406 00:54:26,870 --> 00:54:22,240 my head the cost of two scrubs is a lot 1407 00:54:32,549 --> 00:54:29,210 michael greshko with not you answer 1408 00:54:33,430 --> 00:54:32,559 [Laughter] 1409 00:54:39,670 --> 00:54:33,440 hi 1410 00:54:41,910 --> 00:54:39,680 we are coming up on the 60th anniversary 1411 00:54:43,670 --> 00:54:41,920 of president kennedy's famous rice 1412 00:54:48,309 --> 00:54:43,680 university speech in which he declared 1413 00:54:52,069 --> 00:54:49,270 nearly 1414 00:54:55,030 --> 00:54:52,079 60 years later how do you reflect on the 1415 00:54:58,710 --> 00:54:55,040 upcoming anniversary and the challenges 1416 00:55:00,230 --> 00:54:58,720 that we face as we choose once again 1417 00:55:01,910 --> 00:55:00,240 to go to the moon 1418 00:55:04,390 --> 00:55:01,920 thanks 1419 00:55:08,710 --> 00:55:04,400 as a matter of fact on the 60th 1420 00:55:10,390 --> 00:55:08,720 anniversary i will be in rice stadium 1421 00:55:12,549 --> 00:55:10,400 there will be 1422 00:55:14,789 --> 00:55:12,559 4 000 1423 00:55:17,349 --> 00:55:14,799 public school students 1424 00:55:21,030 --> 00:55:17,359 that will be in the stadium 1425 00:55:22,870 --> 00:55:21,040 just as it was 60 years ago 1426 00:55:24,630 --> 00:55:22,880 with public school 1427 00:55:28,150 --> 00:55:24,640 students 1428 00:55:31,670 --> 00:55:28,160 and what president kennedy said was we 1429 00:55:33,510 --> 00:55:31,680 choose to go to the moon and do other 1430 00:55:35,589 --> 00:55:33,520 things 1431 00:55:38,549 --> 00:55:35,599 not because it's easy 1432 00:55:41,030 --> 00:55:38,559 but because it's hard 1433 00:55:44,630 --> 00:55:41,040 this is a whole new vehicle a whole new 1434 00:55:47,510 --> 00:55:44,640 technology a whole new purpose 1435 00:55:49,829 --> 00:55:47,520 of going back to the moon in preparation 1436 00:55:51,589 --> 00:55:49,839 to go to mars 1437 00:55:55,910 --> 00:55:51,599 and yes 1438 00:56:00,630 --> 00:55:57,510 on the funds we have ken chang from the 1439 00:56:04,710 --> 00:56:03,510 hi thank you um you've all talked about 1440 00:56:05,750 --> 00:56:04,720 that you're not going to launch until 1441 00:56:07,349 --> 00:56:05,760 you're ready 1442 00:56:09,349 --> 00:56:07,359 i'm just wondering have you felt any 1443 00:56:11,190 --> 00:56:09,359 pressure from anywhere 1444 00:56:22,309 --> 00:56:11,200 anywhere within nasa from the white 1445 00:56:25,589 --> 00:56:24,789 well i can tell you from my standpoint 1446 00:56:27,510 --> 00:56:25,599 no 1447 00:56:31,190 --> 00:56:27,520 and if i knew about it 1448 00:56:35,750 --> 00:56:31,200 i would try to stop it but 1449 00:56:39,910 --> 00:56:37,990 i i would agree with that ken we're 1450 00:56:41,030 --> 00:56:39,920 we're not feeling external pressure on 1451 00:56:43,190 --> 00:56:41,040 any of this 1452 00:56:45,750 --> 00:56:43,200 this is something that 1453 00:56:47,829 --> 00:56:45,760 is his administrator nelson said you 1454 00:56:50,230 --> 00:56:47,839 know we're really focused on getting off 1455 00:56:52,069 --> 00:56:50,240 and getting off safely because of the 1456 00:56:53,829 --> 00:56:52,079 consequences of failure 1457 00:56:56,549 --> 00:56:53,839 so we're not feeling any pressure 1458 00:56:59,349 --> 00:56:57,910 so we're running up on the end of our 1459 00:57:00,870 --> 00:56:59,359 hour so you have time for one more 1460 00:57:03,190 --> 00:57:00,880 question 1461 00:57:05,190 --> 00:57:03,200 uh ken kramer 1462 00:57:07,190 --> 00:57:05,200 hi thank you ken kramer for space up 1463 00:57:08,710 --> 00:57:07,200 close let me ask mike sarafin a question 1464 00:57:11,430 --> 00:57:08,720 a couple you talked a question few 1465 00:57:13,109 --> 00:57:11,440 questions back about the possibility to 1466 00:57:15,829 --> 00:57:13,119 do cryoloading 1467 00:57:18,390 --> 00:57:15,839 to test that seal i'm wondering how much 1468 00:57:21,030 --> 00:57:18,400 cryos would you have to load 1469 00:57:22,789 --> 00:57:21,040 to test the seal if it's seated and and 1470 00:57:25,109 --> 00:57:22,799 what would be then the turnaround for a 1471 00:57:26,789 --> 00:57:25,119 launch 1472 00:57:28,870 --> 00:57:26,799 uh in terms of how much crowd we would 1473 00:57:32,549 --> 00:57:28,880 have to load it what we would really 1474 00:57:34,870 --> 00:57:32,559 only need to do is get through the uh 1475 00:57:36,630 --> 00:57:34,880 chill down slow fill and into the fast 1476 00:57:37,670 --> 00:57:36,640 fill and and typically when you get in 1477 00:57:39,030 --> 00:57:37,680 the fast field there's going to be a 1478 00:57:40,549 --> 00:57:39,040 leak that's where you're going to see it 1479 00:57:41,829 --> 00:57:40,559 because you have the highest flow rate 1480 00:57:44,789 --> 00:57:41,839 and the highest pressure you don't need 1481 00:57:47,430 --> 00:57:44,799 to fill the whole tank to do that so 1482 00:57:48,870 --> 00:57:47,440 you know it's it would be somewhere you 1483 00:57:51,030 --> 00:57:48,880 know five 1484 00:57:52,789 --> 00:57:51,040 plus percent it's it's not a significant 1485 00:57:53,670 --> 00:57:52,799 amount of the of the liquid hydrogen 1486 00:57:55,030 --> 00:57:53,680 tank 1487 00:57:55,990 --> 00:57:55,040 and i'm sorry what was the second part 1488 00:57:58,230 --> 00:57:56,000 of the question i've been up since 1489 00:57:59,990 --> 00:57:58,240 midnight some of them what's that 1490 00:58:01,430 --> 00:58:00,000 how long would you could you turn around 1491 00:58:04,309 --> 00:58:01,440 for a launch then would it be like two 1492 00:58:09,109 --> 00:58:05,589 again it 1493 00:58:11,030 --> 00:58:09,119 it depends on 1494 00:58:12,950 --> 00:58:11,040 a whole host of things 1495 00:58:16,309 --> 00:58:12,960 but you know in terms of replenishing 1496 00:58:18,309 --> 00:58:16,319 the commodities and and setting up for a 1497 00:58:19,829 --> 00:58:18,319 subsequent attempt 1498 00:58:24,150 --> 00:58:19,839 we know that we can turn around either 1499 00:58:25,910 --> 00:58:24,160 42 i'm sorry 48 or 72 hours 1500 00:58:27,349 --> 00:58:25,920 simply based on commodity and 1501 00:58:30,549 --> 00:58:27,359 replenishment 1502 00:58:32,470 --> 00:58:30,559 if if there were additional engineering 1503 00:58:34,069 --> 00:58:32,480 investigations or additional work that 1504 00:58:37,750 --> 00:58:34,079 we needed to do 1505 00:58:40,069 --> 00:58:37,760 following a cryo test at that interface 1506 00:58:41,750 --> 00:58:40,079 it is something that would have to be 1507 00:58:43,510 --> 00:58:41,760 factored in the plan we're gonna we're 1508 00:58:45,190 --> 00:58:43,520 gonna understand this better next week 1509 00:58:46,950 --> 00:58:45,200 but um 1510 00:58:48,789 --> 00:58:46,960 in terms of the the first part of that 1511 00:58:50,470 --> 00:58:48,799 question it's it's not a significant 1512 00:58:54,390 --> 00:58:50,480 amount of the crowd compared to the the 1513 00:58:57,750 --> 00:58:56,309 thanks mike as we said earlier we'll 1514 00:58:59,829 --> 00:58:57,760 have an update for you 1515 00:59:02,309 --> 00:58:59,839 next week on the path forward 1516 00:59:04,390 --> 00:59:02,319 and as always turn in tune into nasa tv 1517 00:59:06,549 --> 00:59:04,400 and our social media channels to keep up 1518 00:59:35,109 --> 00:59:06,559 to date on the latest thank you all for 1519 00:59:40,230 --> 00:59:38,309 well in my left hand i have a feather 1520 00:59:42,390 --> 00:59:40,240 and my right hand a hammer 1521 00:59:44,069 --> 00:59:42,400 and i guess one of the reasons uh we got 1522 00:59:46,630 --> 00:59:44,079 here today was because of a gentleman 1523 00:59:48,870 --> 00:59:46,640 named galileo a long time ago who made a