1 00:00:06,420 --> 00:00:21,349 [Music] 2 00:00:21,359 --> 00:00:25,850 you're watching nasa tv 3 00:00:25,860 --> 00:00:46,950 [Music] 4 00:00:50,470 --> 00:00:48,630 good afternoon i'm nasa's gary jordan 5 00:00:52,709 --> 00:00:50,480 thank you for joining us remotely to 6 00:00:55,110 --> 00:00:52,719 preview a set of upcoming spacewalks 7 00:00:56,790 --> 00:00:55,120 scheduled for sunday february 28th and 8 00:00:58,630 --> 00:00:56,800 friday march 5th aboard the 9 00:01:02,150 --> 00:00:58,640 international space station they will be 10 00:01:03,830 --> 00:01:02,160 the 235th and 236th spacewalks in 11 00:01:06,390 --> 00:01:03,840 support of international space station 12 00:01:08,550 --> 00:01:06,400 assembly maintenance and upgrades nasa 13 00:01:10,789 --> 00:01:08,560 astronauts kate rubins and victor glover 14 00:01:12,550 --> 00:01:10,799 are scheduled to conduct the first eva 15 00:01:14,870 --> 00:01:12,560 and rubens will conduct the second with 16 00:01:17,510 --> 00:01:14,880 japan aerospace exploration agency or 17 00:01:19,190 --> 00:01:17,520 jaxa astronaut suichi naguchi this 18 00:01:20,630 --> 00:01:19,200 briefing will address the programmatic 19 00:01:22,789 --> 00:01:20,640 and operational significance of the 20 00:01:25,590 --> 00:01:22,799 spacewalks as well as the detailed 21 00:01:27,350 --> 00:01:25,600 procedures our briefers today include 22 00:01:29,270 --> 00:01:27,360 kenny todd deputy manager of the 23 00:01:31,830 --> 00:01:29,280 international space station program 24 00:01:34,469 --> 00:01:31,840 marcos flores february 28th spacewalk 25 00:01:36,550 --> 00:01:34,479 flight director chris edelen march 5th 26 00:01:38,789 --> 00:01:36,560 spacewalk flight director and art 27 00:01:41,350 --> 00:01:38,799 thomason spacewalk offer for both of the 28 00:01:42,950 --> 00:01:41,360 upcoming evas we'll first start with 29 00:01:45,350 --> 00:01:42,960 some initial remarks from each of our 30 00:01:46,950 --> 00:01:45,360 briefers before for questions we'll be 31 00:01:49,270 --> 00:01:46,960 taking questions on our phone bridge as 32 00:01:50,870 --> 00:01:49,280 well as on our social media platforms 33 00:01:52,630 --> 00:01:50,880 if you're on the phone please press star 34 00:01:54,710 --> 00:01:52,640 one to add your name to our queue and to 35 00:01:57,590 --> 00:01:54,720 ask a question if you're on social media 36 00:02:02,149 --> 00:01:57,600 use the hashtag asknasa we'll now begin 37 00:02:06,830 --> 00:02:04,870 thank you gary um well first of all i 38 00:02:08,550 --> 00:02:06,840 hope everybody's doing well good 39 00:02:10,469 --> 00:02:08,560 afternoon 40 00:02:13,350 --> 00:02:10,479 and uh it seems like yesterday that i 41 00:02:16,070 --> 00:02:13,360 was in the same spot doing a briefing 42 00:02:17,990 --> 00:02:16,080 but since that time frame we've uh we've 43 00:02:19,270 --> 00:02:18,000 not only done the two spacewalks that we 44 00:02:22,710 --> 00:02:19,280 talked about 45 00:02:25,270 --> 00:02:22,720 a few weeks ago but we've also 46 00:02:27,030 --> 00:02:25,280 welcomed the new uh russian progress 47 00:02:28,550 --> 00:02:27,040 cargo vehicle that stationed in addition 48 00:02:30,470 --> 00:02:28,560 to a northwest grumman's thickness 49 00:02:32,229 --> 00:02:30,480 module bringing about 8 000 pounds of 50 00:02:35,750 --> 00:02:32,239 cargo to the international space station 51 00:02:37,190 --> 00:02:35,760 so it's been been a busy few weeks 52 00:02:39,190 --> 00:02:37,200 but now we turn the corner and we're 53 00:02:41,750 --> 00:02:39,200 back to talking a lot about evas again 54 00:02:43,509 --> 00:02:41,760 on board so anyway we've got a set of 55 00:02:45,030 --> 00:02:43,519 two evas that were that we're going to 56 00:02:47,030 --> 00:02:45,040 do here at the end of the month and 57 00:02:48,390 --> 00:02:47,040 early into next month 58 00:02:51,670 --> 00:02:48,400 we call them 59 00:02:52,869 --> 00:02:51,680 gairosa eva and the iss upgrades through 60 00:02:56,150 --> 00:02:52,879 eda 61 00:02:58,390 --> 00:02:56,160 the irosa eba and primarily focused on 62 00:03:00,470 --> 00:02:58,400 on getting ourselves in a position 63 00:03:02,550 --> 00:03:00,480 to be able to receive the new solar 64 00:03:05,030 --> 00:03:02,560 array that are coming to space stations 65 00:03:07,270 --> 00:03:05,040 later this year so we'll uh we'll we'll 66 00:03:09,270 --> 00:03:07,280 install some structure that will allow 67 00:03:10,390 --> 00:03:09,280 us to uh to put those solar arrays in 68 00:03:13,750 --> 00:03:10,400 place 69 00:03:16,869 --> 00:03:13,760 uh on the upgrade uh three um 70 00:03:18,550 --> 00:03:16,879 dba we'll be uh doing uh we have some 71 00:03:20,229 --> 00:03:18,560 ammonia servicing equipment that's been 72 00:03:22,070 --> 00:03:20,239 out for for quite a while now that we 73 00:03:23,910 --> 00:03:22,080 deployed a while back and we're gonna go 74 00:03:25,990 --> 00:03:23,920 try to get that cleaned up and get it 75 00:03:28,390 --> 00:03:26,000 get it into its home uh a better home 76 00:03:30,789 --> 00:03:28,400 for that equipment uh in addition to 77 00:03:32,710 --> 00:03:30,799 that um you know we'll clean up any any 78 00:03:33,670 --> 00:03:32,720 work that we need to do on the solar 79 00:03:35,830 --> 00:03:33,680 array 80 00:03:37,270 --> 00:03:35,840 mods that we need to do so any of the 81 00:03:39,990 --> 00:03:37,280 structures that we need to put in place 82 00:03:42,710 --> 00:03:40,000 we'll clean that up on that eva as well 83 00:03:45,589 --> 00:03:42,720 in addition uh one other objective that 84 00:03:47,270 --> 00:03:45,599 we just recently added to this eba is 85 00:03:50,229 --> 00:03:47,280 associated with our 86 00:03:51,990 --> 00:03:50,239 bartolomeo platform which is uh attached 87 00:03:54,550 --> 00:03:52,000 to the columbus module the european 88 00:03:55,910 --> 00:03:54,560 space agency columbus module as most of 89 00:03:58,070 --> 00:03:55,920 you might remember 90 00:04:00,710 --> 00:03:58,080 we were out at that work site on one of 91 00:04:03,670 --> 00:04:00,720 these past two evas where we're making 92 00:04:05,990 --> 00:04:03,680 connections um uh to the bartolovio 93 00:04:07,670 --> 00:04:06,000 platform unfortunately we we had some 94 00:04:08,550 --> 00:04:07,680 struggles with some of those connectors 95 00:04:10,630 --> 00:04:08,560 and so 96 00:04:12,949 --> 00:04:10,640 uh the team has put together uh what i 97 00:04:15,030 --> 00:04:12,959 think is a pretty good plan to go out uh 98 00:04:17,030 --> 00:04:15,040 to see if we can't learn some more about 99 00:04:19,110 --> 00:04:17,040 what's going on with those connector uh 100 00:04:20,949 --> 00:04:19,120 do a little troubleshooting and uh you 101 00:04:23,350 --> 00:04:20,959 know if we're able to get one or two of 102 00:04:25,189 --> 00:04:23,360 them connected uh then you know we'll 103 00:04:26,469 --> 00:04:25,199 we'll call that a huge success but at 104 00:04:28,070 --> 00:04:26,479 this point we really want to go back out 105 00:04:29,189 --> 00:04:28,080 to that one site see what we can learn 106 00:04:31,030 --> 00:04:29,199 about what's going on with those 107 00:04:32,710 --> 00:04:31,040 connectors and if we don't get them made 108 00:04:35,110 --> 00:04:32,720 at this time certainly we're gonna we're 109 00:04:37,270 --> 00:04:35,120 gonna be looking to 110 00:04:40,230 --> 00:04:37,280 get some data that allow us to put put 111 00:04:41,510 --> 00:04:40,240 that back on for a future idiot so uh 112 00:04:44,150 --> 00:04:41,520 specifically that's where we're going 113 00:04:46,790 --> 00:04:44,160 with those two evas uh once we get those 114 00:04:48,469 --> 00:04:46,800 in our rearview mirror um at that point 115 00:04:51,189 --> 00:04:48,479 we're looking towards the end of march 116 00:04:53,189 --> 00:04:51,199 time frame uh we are we're gonna be all 117 00:04:55,670 --> 00:04:53,199 about vehicles uh at the end of march 118 00:04:56,710 --> 00:04:55,680 and all the way through april into early 119 00:05:00,230 --> 00:04:56,720 may 120 00:05:03,029 --> 00:05:00,240 at this point uh our plan is to relocate 121 00:05:05,270 --> 00:05:03,039 the crew one dragon that's currently 122 00:05:06,710 --> 00:05:05,280 sitting on the no two forward port and 123 00:05:08,310 --> 00:05:06,720 we're going to move it up to the top up 124 00:05:09,590 --> 00:05:08,320 to the zenith port 125 00:05:10,390 --> 00:05:09,600 and we're doing that so that we have a 126 00:05:12,950 --> 00:05:10,400 home 127 00:05:15,270 --> 00:05:12,960 for uh the bowling star liner uh should 128 00:05:17,590 --> 00:05:15,280 it fly this uh this april as it's 129 00:05:20,150 --> 00:05:17,600 currently scheduled or for the crew 2 130 00:05:22,629 --> 00:05:20,160 vehicle the crew dragon that's going to 131 00:05:24,790 --> 00:05:22,639 be following a little later in the month 132 00:05:26,390 --> 00:05:24,800 so uh anyway we're at this point 133 00:05:28,310 --> 00:05:26,400 thinking about this relocate towards 134 00:05:30,390 --> 00:05:28,320 being the march and 135 00:05:32,070 --> 00:05:30,400 and then and then we'll be in a good 136 00:05:33,590 --> 00:05:32,080 posture to receive either one of those 137 00:05:34,950 --> 00:05:33,600 vehicles 138 00:05:36,550 --> 00:05:34,960 as far as on the other end of the 139 00:05:39,510 --> 00:05:36,560 segment and also in april we'll do a 140 00:05:41,189 --> 00:05:39,520 soyuz exchange and we'll bring home 63s 141 00:05:43,110 --> 00:05:41,199 and and our russian colleagues will 142 00:05:44,870 --> 00:05:43,120 launch 64s 143 00:05:47,670 --> 00:05:44,880 so uh there's a lot going on in this 144 00:05:49,670 --> 00:05:47,680 time frame um 145 00:05:51,350 --> 00:05:49,680 here in the very near future and then 146 00:05:54,469 --> 00:05:51,360 after that we'll start a pretty big ramp 147 00:05:56,150 --> 00:05:54,479 up to a lot of vehicle traffic so 148 00:05:57,270 --> 00:05:56,160 it's that that part of the increment 149 00:05:59,430 --> 00:05:57,280 where it's kind of a sprint to the 150 00:06:01,830 --> 00:05:59,440 finish line but the team's been in 151 00:06:04,550 --> 00:06:01,840 really good shape and doing a nice job 152 00:06:07,270 --> 00:06:04,560 of planning a lot of different variables 153 00:06:09,749 --> 00:06:07,280 at this stage so uh relative to the eba 154 00:06:11,830 --> 00:06:09,759 we'll do our go no go at the mission 155 00:06:13,189 --> 00:06:11,840 management theme this coming friday at 156 00:06:15,189 --> 00:06:13,199 this point i don't see anything standing 157 00:06:17,189 --> 00:06:15,199 in the way of it and so uh jerry i'll 158 00:06:20,950 --> 00:06:17,199 hand it back to you and let 159 00:06:22,629 --> 00:06:20,960 these other folks talk to you about some 160 00:06:25,110 --> 00:06:22,639 thank you kenny uh with that we'll hand 161 00:06:28,550 --> 00:06:25,120 it over to marcos flores for to discuss 162 00:06:30,550 --> 00:06:28,560 the february 28th spacewalk marcos 163 00:06:32,230 --> 00:06:30,560 good afternoon everyone i'm really happy 164 00:06:34,309 --> 00:06:32,240 to be here i'm really happy to be part 165 00:06:35,749 --> 00:06:34,319 of this team um like kenny said we're 166 00:06:38,950 --> 00:06:35,759 really looking forward to wrapping up 167 00:06:40,469 --> 00:06:38,960 the cva series uh we do have the uh 168 00:06:42,790 --> 00:06:40,479 upcoming activities to go ahead and get 169 00:06:44,390 --> 00:06:42,800 ready for those new rollout solar arrays 170 00:06:46,390 --> 00:06:44,400 that we're gonna be deploying uh later 171 00:06:48,550 --> 00:06:46,400 this year uh so for the first 172 00:06:51,430 --> 00:06:48,560 spacewalker this sunday um we're gonna 173 00:06:53,830 --> 00:06:51,440 have both kate rubins and victor glover 174 00:06:56,309 --> 00:06:53,840 go outside and bring with them a couple 175 00:06:58,870 --> 00:06:56,319 of big bags that uh include a lot of the 176 00:07:00,710 --> 00:06:58,880 struts that are part of this assembly of 177 00:07:02,390 --> 00:07:00,720 uh structure if you will that we're 178 00:07:03,510 --> 00:07:02,400 gonna be installing out in the v6 179 00:07:05,510 --> 00:07:03,520 worksite 180 00:07:07,670 --> 00:07:05,520 we're going to go out and 181 00:07:09,589 --> 00:07:07,680 work in the mass canister is basically 182 00:07:12,309 --> 00:07:09,599 the base of the two solar arrays on the 183 00:07:13,990 --> 00:07:12,319 channels 2b and 4b and then it gets 184 00:07:15,749 --> 00:07:14,000 started with that work and our goal for 185 00:07:17,990 --> 00:07:15,759 that first dba is to go ahead and get uh 186 00:07:19,749 --> 00:07:18,000 at least that 2b modification kit 187 00:07:21,909 --> 00:07:19,759 installed and then we'll get started 188 00:07:23,670 --> 00:07:21,919 with the work on the 4d mod 189 00:07:25,270 --> 00:07:23,680 at that point once we wrap up we're 190 00:07:28,710 --> 00:07:25,280 planning to hand over the remaining of 191 00:07:31,749 --> 00:07:28,720 that activity over to the last few games 192 00:07:34,469 --> 00:07:31,759 for isis upgrades to be later next week 193 00:07:36,070 --> 00:07:34,479 uh from our perspective of course um the 194 00:07:38,550 --> 00:07:36,080 ground teams are working the final 195 00:07:39,589 --> 00:07:38,560 preparations this week um as well as 196 00:07:41,110 --> 00:07:39,599 making sure that we have all the 197 00:07:43,589 --> 00:07:41,120 analysis all the procedures and the 198 00:07:46,070 --> 00:07:43,599 configurations already 199 00:07:47,510 --> 00:07:46,080 planned and figured out ahead of the epa 200 00:07:49,749 --> 00:07:47,520 as well as going to support our crew 201 00:07:52,390 --> 00:07:49,759 members once they go out the door to get 202 00:07:54,550 --> 00:07:52,400 all this uh activity done 203 00:07:56,070 --> 00:07:54,560 um and in terms of the enormous crew 204 00:07:58,150 --> 00:07:56,080 this week has been very busy they've 205 00:07:59,510 --> 00:07:58,160 been working a lot on making sure that 206 00:08:01,749 --> 00:07:59,520 uh they have all their procedures 207 00:08:02,710 --> 00:08:01,759 reviewed and all the training completed 208 00:08:04,469 --> 00:08:02,720 they've been working on getting their 209 00:08:05,510 --> 00:08:04,479 suits themselves ready uh making sure 210 00:08:06,710 --> 00:08:05,520 that all the consumables that they're 211 00:08:08,950 --> 00:08:06,720 gonna be using immediately they are 212 00:08:10,869 --> 00:08:08,960 topped off and ready to go and as well 213 00:08:12,390 --> 00:08:10,879 paychecks just to make sure that they're 214 00:08:13,670 --> 00:08:12,400 comfortable in those suits funds that go 215 00:08:16,230 --> 00:08:13,680 out the door everything's looking good 216 00:08:17,909 --> 00:08:16,240 from that perspective um finally they're 217 00:08:19,110 --> 00:08:17,919 getting uh the last set of equipment and 218 00:08:22,629 --> 00:08:19,120 tools they're going to be using who you 219 00:08:24,550 --> 00:08:22,639 get gathered and prepared for that 220 00:08:25,589 --> 00:08:24,560 and making really good progress so we're 221 00:08:28,230 --> 00:08:25,599 really happy where we're at the 222 00:08:29,670 --> 00:08:28,240 preparations for that um and with that 223 00:08:31,749 --> 00:08:29,680 i'm going to be handing it over to our 224 00:08:33,190 --> 00:08:31,759 lead eva officer art thomason he's going 225 00:08:35,110 --> 00:08:33,200 to be walking you through 226 00:08:35,909 --> 00:08:35,120 a bit more on the timeline and some of 227 00:08:39,190 --> 00:08:35,919 the 228 00:08:40,790 --> 00:08:39,200 graphics that will show you what this 229 00:08:42,550 --> 00:08:40,800 structures are going to be that we're 230 00:08:43,829 --> 00:08:42,560 going to be following on sunday and a 231 00:08:45,430 --> 00:08:43,839 little bit more detail about what the 232 00:08:47,829 --> 00:08:45,440 crew is going to be doing so aren't over 233 00:08:53,910 --> 00:08:50,230 hi i'm art thomas and i'll be the eva 234 00:08:56,630 --> 00:08:53,920 officer for us eba 71 and 72 i'd like to 235 00:08:58,949 --> 00:08:56,640 start off by recognizing my team miranda 236 00:09:01,269 --> 00:08:58,959 nelson colin murphy 237 00:09:02,870 --> 00:09:01,279 reagan cheney and tess caswell these 238 00:09:04,150 --> 00:09:02,880 guys have all done a great job in 239 00:09:06,230 --> 00:09:04,160 setting up the plane and getting us 240 00:09:07,590 --> 00:09:06,240 ready to go out there for this eba and i 241 00:09:09,750 --> 00:09:07,600 really look forward to working with them 242 00:09:10,870 --> 00:09:09,760 on console on the reveal day for these 243 00:09:13,190 --> 00:09:10,880 ebas 244 00:09:15,110 --> 00:09:13,200 so as marcos and kenny summarized the 245 00:09:17,590 --> 00:09:15,120 plan for this is to install a new 246 00:09:19,190 --> 00:09:17,600 structure out on p6 247 00:09:20,150 --> 00:09:19,200 so that we can install two new solar 248 00:09:22,230 --> 00:09:20,160 arrays 249 00:09:23,670 --> 00:09:22,240 so we've got the two bravo side and the 250 00:09:25,670 --> 00:09:23,680 four bravo side we'll start with the two 251 00:09:27,829 --> 00:09:25,680 bravo side complete the installation of 252 00:09:29,670 --> 00:09:27,839 that structure and then we'll pick up 253 00:09:32,230 --> 00:09:29,680 with the four bravo side and get as far 254 00:09:35,269 --> 00:09:32,240 as we can on that one uh so here you see 255 00:09:37,430 --> 00:09:35,279 the solar array augmentation plan 256 00:09:39,110 --> 00:09:37,440 so that's showing you what the new solar 257 00:09:40,949 --> 00:09:39,120 arrays are going to look like over on 258 00:09:43,030 --> 00:09:40,959 the right hand side so you can see that 259 00:09:45,829 --> 00:09:43,040 in green that's the new solar ray or the 260 00:09:47,110 --> 00:09:45,839 irosa which is smaller than the original 261 00:09:48,230 --> 00:09:47,120 solar arrays 262 00:09:50,710 --> 00:09:48,240 but it's going to be able to generate 263 00:09:52,710 --> 00:09:50,720 the same amount of power so you can see 264 00:09:55,110 --> 00:09:52,720 this is a as port as you can go on the 265 00:09:58,230 --> 00:09:55,120 station uh the two bravo side is on the 266 00:10:00,310 --> 00:09:58,240 bottom and the four bravo side is on the 267 00:10:02,829 --> 00:10:00,320 zenith portion 268 00:10:06,230 --> 00:10:02,839 now can i get the ipa overview graphic 269 00:10:08,150 --> 00:10:06,240 please so this is just another view 270 00:10:10,069 --> 00:10:08,160 that's showing how the solar arrays are 271 00:10:11,590 --> 00:10:10,079 canted out so the the neat thing about 272 00:10:13,030 --> 00:10:11,600 this is that you'll be able to generate 273 00:10:14,949 --> 00:10:13,040 power from 274 00:10:17,190 --> 00:10:14,959 the new solar arrays and the old solar 275 00:10:18,550 --> 00:10:17,200 arrays as well and then if you see the 276 00:10:20,310 --> 00:10:18,560 zoomed in picture 277 00:10:22,630 --> 00:10:20,320 the irosa mod kit is what we're going to 278 00:10:24,949 --> 00:10:22,640 be installing so it's the support 279 00:10:26,790 --> 00:10:24,959 structure that the solar rays will 280 00:10:28,630 --> 00:10:26,800 eventually mount to 281 00:10:29,670 --> 00:10:28,640 and kind of get the mod kit graphic 282 00:10:31,030 --> 00:10:29,680 there it is 283 00:10:33,269 --> 00:10:31,040 so this shows structure that we're 284 00:10:35,509 --> 00:10:33,279 installing uh the thing in the teal 285 00:10:37,110 --> 00:10:35,519 color is the mass canister 286 00:10:39,590 --> 00:10:37,120 so we're going to be bolting this new 287 00:10:41,350 --> 00:10:39,600 structure onto the mass canister 288 00:10:43,110 --> 00:10:41,360 we've got the different names for these 289 00:10:45,110 --> 00:10:43,120 so i'm sure you'll hear in the video 290 00:10:48,310 --> 00:10:45,120 watch in a moment i'll be referring to 291 00:10:50,310 --> 00:10:48,320 the lower struts the mid strut 292 00:10:51,910 --> 00:10:50,320 the two upper struts and then we've got 293 00:10:54,949 --> 00:10:51,920 the mounting bracket that the solar 294 00:10:57,910 --> 00:10:54,959 array is going to attach to 295 00:11:00,230 --> 00:10:57,920 uh bad graphic please 296 00:11:01,910 --> 00:11:00,240 so unfortunately this mod kit is very 297 00:11:03,670 --> 00:11:01,920 large and it doesn't fit out the door in 298 00:11:05,590 --> 00:11:03,680 its current state so we have to bring it 299 00:11:07,190 --> 00:11:05,600 out in pieces kind of like assembling 300 00:11:08,870 --> 00:11:07,200 furniture 301 00:11:10,790 --> 00:11:08,880 you can see this bag here 302 00:11:13,030 --> 00:11:10,800 has a it's really great design because 303 00:11:14,870 --> 00:11:13,040 it's got straps that hold each component 304 00:11:16,230 --> 00:11:14,880 in its own place so it's going to stay 305 00:11:18,230 --> 00:11:16,240 there until the crew is ready to take it 306 00:11:20,389 --> 00:11:18,240 out and assemble the next piece the one 307 00:11:22,550 --> 00:11:20,399 piece that's missing here is the 308 00:11:24,710 --> 00:11:22,560 mounting bracket it's going to go on top 309 00:11:27,110 --> 00:11:24,720 of this and then the lid will be shut 310 00:11:28,550 --> 00:11:27,120 these bags are eight feet long and over 311 00:11:29,350 --> 00:11:28,560 300 pounds 312 00:11:30,790 --> 00:11:29,360 so 313 00:11:32,389 --> 00:11:30,800 even though we don't have you know 314 00:11:34,870 --> 00:11:32,399 gravity to deal with in space we still 315 00:11:36,389 --> 00:11:34,880 have the inertia and mass and so uh the 316 00:11:37,829 --> 00:11:36,399 crew knows to be careful with this and 317 00:11:39,190 --> 00:11:37,839 as they're translating out there they're 318 00:11:40,389 --> 00:11:39,200 going to take it easy and make sure when 319 00:11:42,389 --> 00:11:40,399 they're turning corners and things like 320 00:11:44,870 --> 00:11:42,399 that they help guide the bag because 321 00:11:48,230 --> 00:11:44,880 this is a larger thing than what they're 322 00:11:50,069 --> 00:11:48,240 used to typically translating with 323 00:11:51,910 --> 00:11:50,079 so i think that covers the general 324 00:11:53,269 --> 00:11:51,920 detail that i wanted to go over but i've 325 00:11:55,110 --> 00:11:53,279 got a video that i'd like to show you 326 00:11:56,310 --> 00:11:55,120 guys now that walks you through step by 327 00:12:00,310 --> 00:11:56,320 step on what we're going to do on the 328 00:12:07,030 --> 00:12:04,310 for us eva 71 ev1 will egress the joint 329 00:12:10,310 --> 00:12:07,040 airlock first you'll see ev1 has the red 330 00:12:12,870 --> 00:12:10,320 stripes and ev2 the white suit ev2 will 331 00:12:15,990 --> 00:12:12,880 pass out the two strut bags containing 332 00:12:19,350 --> 00:12:16,000 structure to support new solar arrays 333 00:12:21,829 --> 00:12:19,360 ev2 will head out to p1 334 00:12:24,150 --> 00:12:21,839 where he will install the anchor hooks 335 00:12:25,990 --> 00:12:24,160 for the cruise safety tether now this is 336 00:12:28,629 --> 00:12:26,000 what we call a slingshot and we'll give 337 00:12:31,910 --> 00:12:28,639 them 170 feet of length that they need 338 00:12:33,829 --> 00:12:31,920 to get all the way out to p6 339 00:12:36,629 --> 00:12:33,839 at that point both crew members will 340 00:12:39,910 --> 00:12:36,639 translate to p6 and install their 341 00:12:41,350 --> 00:12:39,920 respective bags on the four bravo and 342 00:12:44,790 --> 00:12:41,360 two bravo 343 00:12:51,430 --> 00:12:47,990 ev1 will translate back in board 344 00:12:54,470 --> 00:12:51,440 and retrieve a portable foot restraint 345 00:12:57,829 --> 00:12:54,480 with a extension 346 00:12:59,110 --> 00:12:57,839 and head back to join ev2 at the 2 bravo 347 00:13:00,949 --> 00:12:59,120 worksite 348 00:13:04,069 --> 00:13:00,959 ev1 will set up this portable foot 349 00:13:05,190 --> 00:13:04,079 restraint for access to the mod kit 350 00:13:08,150 --> 00:13:05,200 install 351 00:13:09,829 --> 00:13:08,160 and translate over to the bag 352 00:13:12,310 --> 00:13:09,839 where both crew members will begin 353 00:13:15,110 --> 00:13:12,320 building what we call the upper triangle 354 00:13:18,069 --> 00:13:15,120 which includes the mounting bracket 355 00:13:20,069 --> 00:13:18,079 a left strut and a right strut 356 00:13:22,069 --> 00:13:20,079 they'll use their pistol grip tool to 357 00:13:24,870 --> 00:13:22,079 assemble that triangle 358 00:13:27,190 --> 00:13:24,880 once it's complete ev1 will be in the 359 00:13:29,670 --> 00:13:27,200 portable foot restraint and eb2 will 360 00:13:32,069 --> 00:13:29,680 hand it off to ev1 361 00:13:33,750 --> 00:13:32,079 here you see ev1 installing this on the 362 00:13:35,750 --> 00:13:33,760 mass canister 363 00:13:37,829 --> 00:13:35,760 there's a strong soft dock feature that 364 00:13:39,990 --> 00:13:37,839 will hold it in place 365 00:13:41,829 --> 00:13:40,000 once it's positioned in place ev1 will 366 00:13:44,389 --> 00:13:41,839 use the pistol grip tool to drive four 367 00:13:49,509 --> 00:13:46,230 v1 will then reposition the foot 368 00:13:53,350 --> 00:13:49,519 restraint for access to the left side of 369 00:13:57,750 --> 00:13:55,590 here you see the mid-strut on eb-1's 370 00:13:59,509 --> 00:13:57,760 body restraint tether 371 00:14:02,389 --> 00:13:59,519 maybe one will hold the lower strut 372 00:14:04,389 --> 00:14:02,399 while eb2 gets into position 373 00:14:06,870 --> 00:14:04,399 now work together to install the left 374 00:14:09,030 --> 00:14:06,880 lower strut ev2 will start off by 375 00:14:09,990 --> 00:14:09,040 drilling the bolt with his pistol grip 376 00:14:11,750 --> 00:14:10,000 tool 377 00:14:14,389 --> 00:14:11,760 and if you want will 378 00:14:16,790 --> 00:14:14,399 drive the upper bolt that connects it to 379 00:14:18,710 --> 00:14:16,800 the mounting bracket 380 00:14:22,030 --> 00:14:18,720 they'll then work together to install 381 00:14:23,990 --> 00:14:22,040 the mid strut on the left side 382 00:14:26,550 --> 00:14:24,000 [Music] 383 00:14:28,389 --> 00:14:26,560 here you can see ev2 driving four bolts 384 00:14:30,069 --> 00:14:28,399 that hold it to the mass canister 385 00:14:31,750 --> 00:14:30,079 similar to the h fixtures that were 386 00:14:34,150 --> 00:14:31,760 recently removed 387 00:14:38,470 --> 00:14:34,160 and ev1 will drive the bolt to secure it 388 00:14:45,110 --> 00:14:42,470 maybe one will then reposition the apfr 389 00:14:47,430 --> 00:14:45,120 and get back in after getting the 390 00:14:55,350 --> 00:14:47,440 mid-strut on her brt 391 00:14:59,030 --> 00:14:56,949 she'll get back into the portable foot 392 00:15:00,310 --> 00:14:59,040 restraint 393 00:15:03,430 --> 00:15:00,320 receive 394 00:15:05,350 --> 00:15:03,440 the right lower strut 395 00:15:08,069 --> 00:15:05,360 and then ev2 will translate around the 396 00:15:09,829 --> 00:15:08,079 mass canister for access 397 00:15:11,590 --> 00:15:09,839 to the installation point for the right 398 00:15:13,590 --> 00:15:11,600 lower strut 399 00:15:15,110 --> 00:15:13,600 again just like the left side they'll be 400 00:15:17,189 --> 00:15:15,120 working together to drive their 401 00:15:20,050 --> 00:15:17,199 respective bolts with their pistol grip 402 00:15:25,670 --> 00:15:23,189 [Music] 403 00:15:27,920 --> 00:15:25,680 ev2 will translate up for 404 00:15:29,910 --> 00:15:27,930 the mid-strut install 405 00:15:32,629 --> 00:15:29,920 [Music] 406 00:15:34,870 --> 00:15:32,639 or the heel drive four bolts ev-1 will 407 00:15:36,870 --> 00:15:34,880 have a single bolt 408 00:15:39,269 --> 00:15:36,880 and then ev2 will tighten the clamp 409 00:15:41,590 --> 00:15:39,279 bolts on both sides the mid-struts are 410 00:15:43,350 --> 00:15:41,600 telescoping and this clamp bolt prevents 411 00:15:45,220 --> 00:15:43,360 it from telescoping any further once 412 00:15:47,430 --> 00:15:45,230 it's in place 413 00:15:48,870 --> 00:15:47,440 [Music] 414 00:15:51,030 --> 00:15:48,880 the crew will then work together to 415 00:15:52,629 --> 00:15:51,040 secure the thermal blankets 416 00:15:54,710 --> 00:15:52,639 over all of the struts and make sure 417 00:15:57,030 --> 00:15:54,720 they're in place as well as verifying 418 00:15:59,110 --> 00:15:57,040 that the pit pins that provide 419 00:16:02,150 --> 00:15:59,120 grounding paths for the structure are 420 00:16:06,230 --> 00:16:04,230 they'll then grab the necessary tools 421 00:16:07,990 --> 00:16:06,240 and head over to the four bravo work 422 00:16:09,910 --> 00:16:08,000 site 423 00:16:12,550 --> 00:16:09,920 very similar kind of a mirror image to 424 00:16:15,430 --> 00:16:12,560 what they were working on previously 425 00:16:18,710 --> 00:16:15,440 ev1 will install the apfr or the 426 00:16:22,629 --> 00:16:20,710 and they'll work together again to build 427 00:16:24,150 --> 00:16:22,639 the upper triangle 428 00:16:26,150 --> 00:16:24,160 consisting of 429 00:16:27,100 --> 00:16:26,160 the two upper struts and the mounting 430 00:16:30,389 --> 00:16:27,110 bracket 431 00:16:32,550 --> 00:16:30,399 [Music] 432 00:16:34,310 --> 00:16:32,560 ev1 in the in the portable foot 433 00:16:38,629 --> 00:16:34,320 restraint will receive 434 00:16:43,590 --> 00:16:41,030 and then they'll get set up to install 435 00:16:45,509 --> 00:16:43,600 the final piece to get to what we call 436 00:16:47,189 --> 00:16:45,519 the minimum configuration 437 00:16:49,189 --> 00:16:47,199 by installing this 438 00:16:50,629 --> 00:16:49,199 right lower strut 439 00:16:53,030 --> 00:16:50,639 the system is now in a good 440 00:16:55,269 --> 00:16:53,040 configuration to leave it out and 441 00:16:57,350 --> 00:16:55,279 operate space station nominally 442 00:16:59,030 --> 00:16:57,360 if we didn't have this installed then we 443 00:17:00,870 --> 00:16:59,040 would need to perform a tie down to make 444 00:17:03,990 --> 00:17:00,880 sure that everything was structurally 445 00:17:05,990 --> 00:17:04,000 down before heading back in 446 00:17:08,949 --> 00:17:06,000 there is extra time we'll continue to 447 00:17:11,829 --> 00:17:08,959 build the four bravo mod kit on this eva 448 00:17:13,350 --> 00:17:11,839 if not i would we have plans to perform 449 00:17:15,510 --> 00:17:13,360 the rest of the install 450 00:17:17,510 --> 00:17:15,520 on the next dva 451 00:17:19,189 --> 00:17:17,520 the crew will then pack the empty bag 452 00:17:21,189 --> 00:17:19,199 with the tools that they plan to bring 453 00:17:24,470 --> 00:17:21,199 inside 454 00:17:26,789 --> 00:17:24,480 eb2 will carry that back to the airlock 455 00:17:31,350 --> 00:17:26,799 both crew members will translate back to 456 00:17:35,990 --> 00:17:34,310 they'll leave the slingshots out 457 00:17:37,510 --> 00:17:36,000 meaning that the tethers will be strung 458 00:17:39,270 --> 00:17:37,520 out to p1 459 00:17:40,230 --> 00:17:39,280 because we'll use them again on a future 460 00:17:42,789 --> 00:17:40,240 eva 461 00:17:45,590 --> 00:17:42,799 eb2 will put the bag in the airlock and 462 00:17:47,790 --> 00:17:45,600 ingress followed by ev1 we will then 463 00:17:54,870 --> 00:17:47,800 close the hatch 464 00:17:59,909 --> 00:17:56,950 okay i'm back with you and i have with 465 00:18:02,549 --> 00:17:59,919 here with me a upper strut so you can 466 00:18:04,150 --> 00:18:02,559 see that it's covered in multi-layer 467 00:18:05,029 --> 00:18:04,160 insulation or a thermal blanket if you 468 00:18:06,870 --> 00:18:05,039 will 469 00:18:09,190 --> 00:18:06,880 this is the side that's going to attach 470 00:18:11,750 --> 00:18:09,200 to the filter pad i'll get that blanket 471 00:18:13,750 --> 00:18:11,760 out of the way so you can see that and 472 00:18:16,150 --> 00:18:13,760 this is the side that's going to attach 473 00:18:17,590 --> 00:18:16,160 to the mounting bracket so there's two 474 00:18:19,350 --> 00:18:17,600 bolts on this side 475 00:18:20,630 --> 00:18:19,360 one of the neat features about the bolts 476 00:18:22,630 --> 00:18:20,640 is if you can see there's some black 477 00:18:24,070 --> 00:18:22,640 lines there so once the bolt is fully 478 00:18:25,669 --> 00:18:24,080 installed the crew will see that that 479 00:18:27,590 --> 00:18:25,679 black line is flush knowing that they 480 00:18:29,029 --> 00:18:27,600 got it fully installed on the ground 481 00:18:31,430 --> 00:18:29,039 we'll be monitoring the torques and 482 00:18:32,789 --> 00:18:31,440 turns so that we know that it's they got 483 00:18:35,909 --> 00:18:32,799 a good install but it's nice to have 484 00:18:38,070 --> 00:18:35,919 that visual indicator on their side 485 00:18:39,350 --> 00:18:38,080 the blanket on it is kind of unique the 486 00:18:40,950 --> 00:18:39,360 blanket is there to protect it from 487 00:18:42,789 --> 00:18:40,960 thermal extremes 488 00:18:44,310 --> 00:18:42,799 but this one has something that's a 489 00:18:46,710 --> 00:18:44,320 little different we don't have to velcro 490 00:18:48,310 --> 00:18:46,720 it in place or tie it in place 491 00:18:50,230 --> 00:18:48,320 we actually can just put it over the 492 00:18:53,190 --> 00:18:50,240 bolt once that's installed and then it 493 00:18:54,470 --> 00:18:53,200 has integrated wire ties in there so 494 00:18:56,870 --> 00:18:54,480 you're able to just bend it around the 495 00:18:58,470 --> 00:18:56,880 structure and it's it stays in place so 496 00:18:59,909 --> 00:18:58,480 it'll definitely save through some time 497 00:19:02,230 --> 00:18:59,919 and getting this blanket in place so you 498 00:19:03,830 --> 00:19:02,240 can see a few of these uh here now and 499 00:19:06,710 --> 00:19:03,840 how that works so it's just a wire that 500 00:19:08,630 --> 00:19:06,720 you can you can 501 00:19:12,390 --> 00:19:08,640 you'll also notice that there is 502 00:19:14,789 --> 00:19:12,400 a grounding pin so this is used to 503 00:19:16,390 --> 00:19:14,799 provide connectivity uh throughout the 504 00:19:18,150 --> 00:19:16,400 the whole mod kit so that we don't have 505 00:19:20,549 --> 00:19:18,160 a charge build up in one place or 506 00:19:24,150 --> 00:19:22,230 next i'd like to go ahead and introduce 507 00:19:27,350 --> 00:19:24,160 the crew if i could get the crew graphic 508 00:19:29,029 --> 00:19:27,360 i'll show you that uh ev1 will be kate 509 00:19:31,270 --> 00:19:29,039 rubins she'll be wearing the suit with 510 00:19:33,350 --> 00:19:31,280 the red stripes and victor glover will 511 00:19:35,909 --> 00:19:33,360 be ev2 he'll be coming out in the white 512 00:19:37,430 --> 00:19:35,919 suit this will be the third eva for both 513 00:19:39,590 --> 00:19:37,440 of these crew members it'll be their 514 00:19:41,270 --> 00:19:39,600 first time working together but they've 515 00:19:43,590 --> 00:19:41,280 both seen this in the water a number of 516 00:19:45,350 --> 00:19:43,600 times so i know they'll be ready to go 517 00:19:48,390 --> 00:19:45,360 for this and we'll talk to them a few 518 00:19:50,150 --> 00:19:48,400 times they've been studying hard 519 00:19:52,549 --> 00:19:50,160 inside the vehicle we'll have mike 520 00:19:54,950 --> 00:19:52,559 hopkins and suichi naguchi getting them 521 00:19:57,029 --> 00:19:54,960 ready to go outside and suit it up and 522 00:19:59,029 --> 00:19:57,039 then here on the ground we'll have frank 523 00:20:01,029 --> 00:19:59,039 rubio as the ground iv so frank's been 524 00:20:02,710 --> 00:20:01,039 following this with us for quite some 525 00:20:05,270 --> 00:20:02,720 time 526 00:20:07,510 --> 00:20:05,280 he's done this in the water in the suit 527 00:20:09,909 --> 00:20:07,520 he's been the communicator doing a lot 528 00:20:12,070 --> 00:20:09,919 of our neutral buoyancy lab runs 529 00:20:13,590 --> 00:20:12,080 so you know we're happy to have him as 530 00:20:15,029 --> 00:20:13,600 part of the team and he'll be able to 531 00:20:17,350 --> 00:20:15,039 give them some valuable insight as he 532 00:20:18,789 --> 00:20:17,360 walks in through the tasks 533 00:20:20,630 --> 00:20:18,799 so we've done a lot of work here on the 534 00:20:22,470 --> 00:20:20,640 grounds and the crew has done a lot of 535 00:20:25,510 --> 00:20:22,480 preparation to get ready for this so uh 536 00:20:28,630 --> 00:20:25,520 we're ready to go for usc va 71 537 00:20:31,029 --> 00:20:28,640 and i'll turn it back over to you gary 538 00:20:33,510 --> 00:20:31,039 thank you art uh we'll now discuss the 539 00:20:35,590 --> 00:20:33,520 march 5th spacewalk so we'll go to chris 540 00:20:37,909 --> 00:20:35,600 edelen chris 541 00:20:40,630 --> 00:20:37,919 all right thank you gary so uh we have a 542 00:20:43,350 --> 00:20:40,640 variety of tasks planned for the iss 543 00:20:46,070 --> 00:20:43,360 upgrades three eva the top priority will 544 00:20:49,350 --> 00:20:46,080 be to complete the irosa prep work that 545 00:20:52,230 --> 00:20:49,360 art and uh and marcos described we don't 546 00:20:54,310 --> 00:20:52,240 expect that kate and victor will have 547 00:20:56,710 --> 00:20:54,320 sufficient time to complete all of the 548 00:20:58,630 --> 00:20:56,720 irosa prep work so we will flex our 549 00:21:00,549 --> 00:20:58,640 timeline for this eva in order to be 550 00:21:03,909 --> 00:21:00,559 able to complete that work so that we 551 00:21:06,390 --> 00:21:03,919 have a good configuration on the iss 552 00:21:08,470 --> 00:21:06,400 power channels for bravo and to bravo to 553 00:21:10,390 --> 00:21:08,480 receive those advanced rollout solar 554 00:21:13,270 --> 00:21:10,400 arrays later this year 555 00:21:15,510 --> 00:21:13,280 our second task is going to be 556 00:21:17,750 --> 00:21:15,520 venting and relocating to ammonia 557 00:21:19,990 --> 00:21:17,760 jumpers these are out on the port six 558 00:21:21,590 --> 00:21:20,000 truss near where the arosa prep work is 559 00:21:23,590 --> 00:21:21,600 is happening 560 00:21:26,630 --> 00:21:23,600 these jumpers have been used in the past 561 00:21:28,950 --> 00:21:26,640 to uh to transfer ammonia between 562 00:21:30,870 --> 00:21:28,960 separate sections of the iss external 563 00:21:33,830 --> 00:21:30,880 thermal control system they've been used 564 00:21:34,870 --> 00:21:33,840 to troubleshoot leaks out on p6 so what 565 00:21:36,950 --> 00:21:34,880 we'll do 566 00:21:39,510 --> 00:21:36,960 is the crew will vent the ammonia of 567 00:21:41,590 --> 00:21:39,520 these jumpers of hoses essentially so 568 00:21:44,070 --> 00:21:41,600 that they can be safely handled and then 569 00:21:45,990 --> 00:21:44,080 they will leave one on p6 so it's 570 00:21:47,669 --> 00:21:46,000 available for any future leak 571 00:21:50,149 --> 00:21:47,679 troubleshooting and the other will be 572 00:21:52,390 --> 00:21:50,159 coiled up and relocated back to the 573 00:21:54,630 --> 00:21:52,400 airlock and stowed on an 574 00:21:56,789 --> 00:21:54,640 external locker on the airlock so it's 575 00:21:58,470 --> 00:21:56,799 in a convenient location if we ever have 576 00:22:00,710 --> 00:21:58,480 to go out on the starboard side and 577 00:22:02,549 --> 00:22:00,720 troubleshoot any ammonia leaks there of 578 00:22:04,789 --> 00:22:02,559 course uh when dealing with ammonia 579 00:22:07,430 --> 00:22:04,799 extra vigilance is is necessary because 580 00:22:09,430 --> 00:22:07,440 of the concern that uh if we got ammonia 581 00:22:10,950 --> 00:22:09,440 contamination on the suits and then 582 00:22:13,990 --> 00:22:10,960 brought that inside station that could 583 00:22:16,070 --> 00:22:14,000 represent a a potential toxic atmosphere 584 00:22:17,590 --> 00:22:16,080 situation for the crew inside station so 585 00:22:19,430 --> 00:22:17,600 again we'll be paying extra close 586 00:22:21,590 --> 00:22:19,440 attention to make sure that the suits 587 00:22:23,029 --> 00:22:21,600 don't get any contamination with ammonia 588 00:22:24,950 --> 00:22:23,039 or if they do we have contingency 589 00:22:26,710 --> 00:22:24,960 procedures available and the teams are 590 00:22:28,470 --> 00:22:26,720 trained to execute those to make sure 591 00:22:29,510 --> 00:22:28,480 that the crew stays safe with with 592 00:22:32,070 --> 00:22:29,520 ammonia 593 00:22:34,310 --> 00:22:32,080 our next task after this will be to uh 594 00:22:37,510 --> 00:22:34,320 to head back to the airlock and replace 595 00:22:39,990 --> 00:22:37,520 a failed wireless video system external 596 00:22:41,750 --> 00:22:40,000 transceiver assembly or letta this is 597 00:22:44,149 --> 00:22:41,760 one of three lettuce located on the 598 00:22:46,230 --> 00:22:44,159 outside station this uh this is 599 00:22:48,470 --> 00:22:46,240 essentially an antenna that uh that 600 00:22:51,270 --> 00:22:48,480 receives the transmission from the crew 601 00:22:54,310 --> 00:22:51,280 members hellcam their wireless video 602 00:22:56,789 --> 00:22:54,320 cameras on their helmets so uh just like 603 00:22:58,390 --> 00:22:56,799 we love watching this on nasa tv we also 604 00:23:00,470 --> 00:22:58,400 really appreciate having this in mission 605 00:23:02,149 --> 00:23:00,480 control during ebas to be able to have 606 00:23:03,909 --> 00:23:02,159 the crew members perspective to see 607 00:23:05,830 --> 00:23:03,919 exactly what they're working on so we 608 00:23:08,630 --> 00:23:05,840 definitely want to replace this uh this 609 00:23:10,630 --> 00:23:08,640 one letta on node one that failed 610 00:23:13,350 --> 00:23:10,640 towards the end of last year get this 611 00:23:15,669 --> 00:23:13,360 replaced so that we have good coverage 612 00:23:17,669 --> 00:23:15,679 for our wireless video system we're 613 00:23:19,990 --> 00:23:17,679 doing space blocks 614 00:23:21,510 --> 00:23:20,000 another task that we have planned is to 615 00:23:23,830 --> 00:23:21,520 route 616 00:23:27,190 --> 00:23:23,840 two ethernet cables 617 00:23:29,830 --> 00:23:27,200 on the aft port one truss this will be 618 00:23:32,470 --> 00:23:29,840 used to uh for a future wireless access 619 00:23:33,590 --> 00:23:32,480 point upgrades on the outside station to 620 00:23:36,870 --> 00:23:33,600 accommodate 621 00:23:38,549 --> 00:23:36,880 payloads as well as future high def eva 622 00:23:40,870 --> 00:23:38,559 wireless video 623 00:23:43,269 --> 00:23:40,880 so and one other um unique aspect of 624 00:23:45,510 --> 00:23:43,279 this eva is we will have 625 00:23:47,750 --> 00:23:45,520 what's called the iss experiment camera 626 00:23:49,990 --> 00:23:47,760 system mounted to the special purpose 627 00:23:51,750 --> 00:23:50,000 dexterous manipulator or dexter as it's 628 00:23:54,630 --> 00:23:51,760 commonly called that's going to be 629 00:23:58,070 --> 00:23:54,640 mounted on dexter on the station arm and 630 00:23:59,750 --> 00:23:58,080 it will give us a 360 degree view of the 631 00:24:01,830 --> 00:23:59,760 eva now we won't have this video 632 00:24:03,510 --> 00:24:01,840 available in real time but they will be 633 00:24:05,590 --> 00:24:03,520 capturing this video and making that 634 00:24:07,269 --> 00:24:05,600 available later uh 635 00:24:09,029 --> 00:24:07,279 for the public 636 00:24:11,190 --> 00:24:09,039 to see to be able to sort of better 637 00:24:13,269 --> 00:24:11,200 experience what it's like on the outside 638 00:24:15,110 --> 00:24:13,279 station doing an eva so we're really 639 00:24:16,630 --> 00:24:15,120 looking forward to seeing those views 640 00:24:19,590 --> 00:24:16,640 and then finally we have a few other 641 00:24:21,909 --> 00:24:19,600 additional tasks that that will be added 642 00:24:24,070 --> 00:24:21,919 to the eba depending upon how much of 643 00:24:26,070 --> 00:24:24,080 that content from irosa prep 644 00:24:28,710 --> 00:24:26,080 rolls into our epa kenny already 645 00:24:29,750 --> 00:24:28,720 mentioned uh the possibility of doing 646 00:24:31,590 --> 00:24:29,760 the 647 00:24:33,430 --> 00:24:31,600 columbus connector troubleshooting 648 00:24:35,590 --> 00:24:33,440 that's one of the leading candidates so 649 00:24:38,149 --> 00:24:35,600 we'll be paying very close attention to 650 00:24:39,350 --> 00:24:38,159 what happens on rosa prep eva the first 651 00:24:41,750 --> 00:24:39,360 eba 652 00:24:43,830 --> 00:24:41,760 again to see what our final plan will 653 00:24:46,070 --> 00:24:43,840 look like it's going to be a busy five 654 00:24:47,190 --> 00:24:46,080 days in between evas as we finalize our 655 00:24:48,630 --> 00:24:47,200 plan 656 00:24:50,390 --> 00:24:48,640 and as marcos already mentioned the crew 657 00:24:51,590 --> 00:24:50,400 has already been studying preparing 658 00:24:54,789 --> 00:24:51,600 their suits and they're studying the 659 00:24:56,710 --> 00:24:54,799 tasks for both evas in parallel so that 660 00:24:59,590 --> 00:24:56,720 they're ready to go and that we have 661 00:25:01,350 --> 00:24:59,600 both a crew on on orbit as well as the 662 00:25:03,990 --> 00:25:01,360 flight control team here on the ground 663 00:25:07,830 --> 00:25:04,000 ready to execute two safe and efficient 664 00:25:09,269 --> 00:25:07,840 evas next week so gary back to you 665 00:25:11,110 --> 00:25:09,279 thank you chris uh with that we'll go 666 00:25:13,590 --> 00:25:11,120 back to art to walk us through the 667 00:25:15,029 --> 00:25:13,600 preparations and procedures 668 00:25:17,029 --> 00:25:15,039 okay well thanks a lot for the great 669 00:25:18,390 --> 00:25:17,039 summary chris um i don't have too much 670 00:25:20,070 --> 00:25:18,400 to add that but i do have a little extra 671 00:25:21,830 --> 00:25:20,080 detail that i'd like to talk through on 672 00:25:24,070 --> 00:25:21,840 the first task which i think is the most 673 00:25:26,390 --> 00:25:24,080 complex uh that's venting the ammonia 674 00:25:27,909 --> 00:25:26,400 jumpers so if we could have the jumper 675 00:25:29,830 --> 00:25:27,919 graphic 676 00:25:31,669 --> 00:25:29,840 so this shows the initial configuration 677 00:25:34,149 --> 00:25:31,679 of the two jumpers so these jumpers are 678 00:25:36,549 --> 00:25:34,159 used to tie together the early ammonia 679 00:25:37,990 --> 00:25:36,559 system uh out on the port side with the 680 00:25:40,630 --> 00:25:38,000 outboard ammonia system that we 681 00:25:43,909 --> 00:25:40,640 currently use uh some chamfers were used 682 00:25:45,990 --> 00:25:43,919 on usda 33 to do an outboard fill so we 683 00:25:48,310 --> 00:25:46,000 filled that outboard 684 00:25:49,909 --> 00:25:48,320 ammonia system and then the plan here as 685 00:25:51,510 --> 00:25:49,919 chris mentioned is we're going to vent 686 00:25:53,750 --> 00:25:51,520 both of these jumpers 687 00:25:57,590 --> 00:25:53,760 so in order to do that we'll disconnect 688 00:25:59,669 --> 00:25:57,600 the fh01 jumper vent that and we'll stow 689 00:26:01,350 --> 00:25:59,679 it on the vent tool extender bag so this 690 00:26:03,830 --> 00:26:01,360 is a bag that we're going to bring back 691 00:26:06,149 --> 00:26:03,840 to the zenith part of the airlock we'll 692 00:26:08,310 --> 00:26:06,159 have this jumper centrally located in 693 00:26:10,149 --> 00:26:08,320 the event that we need to fill the 694 00:26:11,110 --> 00:26:10,159 outboard ammonia system on the starboard 695 00:26:13,350 --> 00:26:11,120 side 696 00:26:16,710 --> 00:26:13,360 and while we're there we'll vent the ho2 697 00:26:18,390 --> 00:26:16,720 jumper and leave it in place out at p6 698 00:26:20,630 --> 00:26:18,400 in case we need to do a fill on the port 699 00:26:22,070 --> 00:26:20,640 side so kind of as chris mentioned we 700 00:26:23,990 --> 00:26:22,080 want to make sure we vent these jumpers 701 00:26:25,510 --> 00:26:24,000 before we do anything with them because 702 00:26:27,110 --> 00:26:25,520 right now they're tied into the ammonia 703 00:26:30,070 --> 00:26:27,120 system that has an accumulator as part 704 00:26:31,510 --> 00:26:30,080 of the system but when they're isolated 705 00:26:33,750 --> 00:26:31,520 due to thermal expansion we don't want 706 00:26:35,350 --> 00:26:33,760 these to rupture so we get them vented 707 00:26:37,029 --> 00:26:35,360 quickly so that they'll be safe to 708 00:26:41,350 --> 00:26:37,039 handle and move out to the starboard 709 00:26:45,909 --> 00:26:43,350 next slide please uh so yeah this one is 710 00:26:48,230 --> 00:26:45,919 the vent tool hardware so you see the 711 00:26:50,149 --> 00:26:48,240 vent tool and the vent tool extender so 712 00:26:51,350 --> 00:26:50,159 obviously ammonia is something that we 713 00:26:52,390 --> 00:26:51,360 don't want to get on the crew or get 714 00:26:54,549 --> 00:26:52,400 near the crew 715 00:26:56,230 --> 00:26:54,559 and we'll have the tools to help keep 716 00:26:58,710 --> 00:26:56,240 the plumbing ammonia from the jumper 717 00:27:01,510 --> 00:26:58,720 vent well away from the crew so the vent 718 00:27:02,710 --> 00:27:01,520 tool will attach with an adapter to each 719 00:27:04,470 --> 00:27:02,720 jumper 720 00:27:06,630 --> 00:27:04,480 and then the end of the vent tool with 721 00:27:09,190 --> 00:27:06,640 the hook will plug into the vent tool 722 00:27:10,870 --> 00:27:09,200 extender where you see that lever and 723 00:27:12,630 --> 00:27:10,880 then the crew will route the vent tool 724 00:27:15,110 --> 00:27:12,640 extender out to the 725 00:27:17,350 --> 00:27:15,120 the aft side of station 726 00:27:19,269 --> 00:27:17,360 attach that nozzle to a handrail and 727 00:27:21,269 --> 00:27:19,279 then it'll vent station app while the 728 00:27:23,190 --> 00:27:21,279 the crew is on the forward side 729 00:27:25,669 --> 00:27:23,200 of the station keeping them well clear 730 00:27:27,430 --> 00:27:25,679 that vent 731 00:27:28,789 --> 00:27:27,440 so at this point i've got a video i'd 732 00:27:32,389 --> 00:27:28,799 like to show you that walks you through 733 00:27:35,029 --> 00:27:32,399 the the different portions of the eva 734 00:27:37,269 --> 00:27:35,039 for us eva 72 735 00:27:39,990 --> 00:27:37,279 both crew members will egress the joint 736 00:27:43,269 --> 00:27:40,000 airlock ev1 and the red stripes coming 737 00:27:45,190 --> 00:27:43,279 out first followed by ev2 ev1 will 738 00:27:47,669 --> 00:27:45,200 translate to the top of the airlock and 739 00:27:50,549 --> 00:27:47,679 retrieve the vent tool extender bag and 740 00:27:52,549 --> 00:27:50,559 put it on their brt 741 00:27:54,310 --> 00:27:52,559 one will head out to the work site 742 00:27:58,230 --> 00:27:54,320 taking advantage of the tethers that 743 00:28:03,029 --> 00:28:00,310 they will stow the vent tool extender 744 00:28:07,909 --> 00:28:03,039 bag on the truss 745 00:28:12,149 --> 00:28:10,549 ev2 will begin work setting up the vent 746 00:28:14,389 --> 00:28:12,159 tool extender 747 00:28:16,630 --> 00:28:14,399 this will set up a nozzle so that the 748 00:28:19,909 --> 00:28:16,640 ammonia in the jumpers it's vented will 749 00:28:22,950 --> 00:28:19,919 go station aft and clear of the crew 750 00:28:24,310 --> 00:28:22,960 ev1 will start to vent the first jumper 751 00:28:25,830 --> 00:28:24,320 by mating it 752 00:28:27,909 --> 00:28:25,840 and then closing the other end to 753 00:28:30,549 --> 00:28:27,919 isolate the ammonia in the jumper and 754 00:28:32,870 --> 00:28:30,559 then opening it to vent it out of the 755 00:28:35,430 --> 00:28:32,880 nozzle of the vent tool extender 756 00:28:37,590 --> 00:28:35,440 once that's complete ev2 will take the 757 00:28:40,230 --> 00:28:37,600 jumper and coil it up on the vent tool 758 00:28:42,149 --> 00:28:40,240 extender bag so it can be relocated back 759 00:28:44,789 --> 00:28:42,159 to the top of the airlock and used for 760 00:28:46,789 --> 00:28:44,799 outboard ops on the starboard side ev1 761 00:28:48,950 --> 00:28:46,799 will vent the second jumper in a similar 762 00:28:51,190 --> 00:28:48,960 way expelling the ammonia from that 763 00:28:53,350 --> 00:28:51,200 jumper and leaving it in place on the 764 00:28:55,269 --> 00:28:53,360 port side in case it's needed for an 765 00:28:56,630 --> 00:28:55,279 outboard ammonia fill 766 00:28:59,110 --> 00:28:56,640 then both crew members will work 767 00:29:01,590 --> 00:28:59,120 together to stow the vent tool and vent 768 00:29:04,950 --> 00:29:01,600 tool extender back in the bag 769 00:29:07,590 --> 00:29:04,960 ev1 will head out to the four bravo mod 770 00:29:10,149 --> 00:29:07,600 kit worksite to finish completion 771 00:29:12,630 --> 00:29:10,159 of the mod kit on the for bravo solar 772 00:29:15,840 --> 00:29:12,640 array 773 00:29:19,110 --> 00:29:15,850 db2 will hand the mid strut off to ev1 774 00:29:22,789 --> 00:29:21,029 and ev1 will get into the portable foot 775 00:29:24,950 --> 00:29:22,799 restraint and they'll install the right 776 00:29:26,950 --> 00:29:24,960 mid strut together 777 00:29:29,110 --> 00:29:26,960 ev2 working on the mass canister will 778 00:29:31,350 --> 00:29:29,120 have four bolts to drive with their 779 00:29:33,830 --> 00:29:31,360 pistol grip tool will be a single bolt 780 00:29:36,470 --> 00:29:33,840 for eb1 781 00:29:38,470 --> 00:29:36,480 repositioning the foot restraint db1 782 00:29:40,630 --> 00:29:38,480 will retrieve the 783 00:29:42,870 --> 00:29:40,640 mid strut for the left side get into the 784 00:29:44,630 --> 00:29:42,880 foot restraint and then get the left 785 00:29:47,990 --> 00:29:44,640 lower strut this will be the last two 786 00:29:52,310 --> 00:29:49,750 eb2 will translate around the mass 787 00:29:55,350 --> 00:29:52,320 canister and get in position to drive 788 00:29:57,110 --> 00:29:55,360 the lower bolt on that strut this is a 789 00:29:58,870 --> 00:29:57,120 pretty high torque bolt 790 00:30:00,700 --> 00:29:58,880 so we'll need a good body position there 791 00:30:02,470 --> 00:30:00,710 and ev1 will drive the upper bolt 792 00:30:04,549 --> 00:30:02,480 [Music] 793 00:30:06,710 --> 00:30:04,559 b2 will translate up the mass canister 794 00:30:09,909 --> 00:30:06,720 to install the final component for both 795 00:30:15,909 --> 00:30:12,230 ab2 will drive this final bolt to secure 796 00:30:21,110 --> 00:30:17,990 ev2 will drive the clamp bolts to 797 00:30:24,070 --> 00:30:21,120 prevent the mid strut from telescoping 798 00:30:26,149 --> 00:30:24,080 and eb1 will make sure that all of the 799 00:30:28,710 --> 00:30:26,159 blankets are in place to provide thermal 800 00:30:31,029 --> 00:30:28,720 protection and also make sure that pip 801 00:30:33,029 --> 00:30:31,039 pins are in place that provide grounding 802 00:30:35,590 --> 00:30:33,039 for the entire system 803 00:30:39,350 --> 00:30:35,600 once ev2 drives those final two bolts 804 00:30:43,990 --> 00:30:41,830 ev1 will get the foot restraint 805 00:30:46,950 --> 00:30:44,000 and stow that on the zenith portion of 806 00:30:50,149 --> 00:30:46,960 p6 to be in a good location for a later 807 00:30:52,070 --> 00:30:50,159 space walk 808 00:30:54,389 --> 00:30:52,080 will get the bag 809 00:30:56,310 --> 00:30:54,399 and translate back in board to the 810 00:30:58,149 --> 00:30:56,320 airlock 811 00:30:59,430 --> 00:30:58,159 and that bag will be stowed back where 812 00:31:01,269 --> 00:30:59,440 it came from 813 00:31:03,590 --> 00:31:01,279 on the zenith portion of the airlock but 814 00:31:07,190 --> 00:31:03,600 now with a jumper on top that can be 815 00:31:12,230 --> 00:31:10,310 ev2 will retrieve the bag 816 00:31:15,350 --> 00:31:12,240 and the width extender this is an 817 00:31:17,269 --> 00:31:15,360 extension for the foot restraint 818 00:31:18,389 --> 00:31:17,279 that extension will be stowed on the 819 00:31:21,830 --> 00:31:18,399 cedar cart 820 00:31:23,350 --> 00:31:21,840 to be used for a later eba 821 00:31:25,110 --> 00:31:23,360 eb2 will 822 00:31:27,669 --> 00:31:25,120 bring in the two safety tether anchor 823 00:31:29,669 --> 00:31:27,679 points attached to the end of eb-1 824 00:31:31,590 --> 00:31:29,679 safety tether 825 00:31:33,669 --> 00:31:31,600 and come back to the airlock put the 826 00:31:37,830 --> 00:31:33,679 bags in place 827 00:31:41,269 --> 00:31:37,840 db1 will then hand db2 out the weta bag 828 00:31:43,269 --> 00:31:41,279 weta stands for wbs external transceiver 829 00:31:49,190 --> 00:31:43,279 assembly this will be worked on later in 830 00:31:53,590 --> 00:31:51,110 okay we'll back with you um once the 831 00:31:54,710 --> 00:31:53,600 crew stows that bag externally we're 832 00:31:56,149 --> 00:31:54,720 going to send one of the crew members 833 00:31:57,350 --> 00:31:56,159 out to columbus where they're going to 834 00:31:59,029 --> 00:31:57,360 work on 835 00:32:00,710 --> 00:31:59,039 a connector that there are four 836 00:32:05,110 --> 00:32:00,720 connectors actually that they had 837 00:32:06,870 --> 00:32:05,120 trouble with on us eva 69 so on usc va69 838 00:32:08,310 --> 00:32:06,880 there's a power cable that runs from the 839 00:32:10,710 --> 00:32:08,320 bartolomeo 840 00:32:13,190 --> 00:32:10,720 science platform back to columbus they 841 00:32:14,549 --> 00:32:13,200 were able to partially engage two of the 842 00:32:16,470 --> 00:32:14,559 connectors and then they left two of 843 00:32:18,950 --> 00:32:16,480 them capped so now we're gonna go make 844 00:32:21,750 --> 00:32:18,960 an attempt to re-engage two of those 845 00:32:23,990 --> 00:32:21,760 connectors and get them fully mated so 846 00:32:25,750 --> 00:32:24,000 um the connectors uh consist of two 847 00:32:27,669 --> 00:32:25,760 halves so um 848 00:32:28,950 --> 00:32:27,679 i'll show you kind of both sides so one 849 00:32:29,750 --> 00:32:28,960 side 850 00:32:35,590 --> 00:32:29,760 has 851 00:32:37,269 --> 00:32:35,600 plugs that go into those receptacles so 852 00:32:38,310 --> 00:32:37,279 when when you mate the two connectors 853 00:32:39,750 --> 00:32:38,320 together 854 00:32:42,389 --> 00:32:39,760 you've got the two half shells and then 855 00:32:44,230 --> 00:32:42,399 you're able to push this veil forward 856 00:32:46,149 --> 00:32:44,240 that causes them to mate and make good 857 00:32:47,509 --> 00:32:46,159 electrical connection with those pins 858 00:32:49,909 --> 00:32:47,519 and sockets 859 00:32:52,190 --> 00:32:49,919 so what we actually were able to do on 860 00:32:54,950 --> 00:32:52,200 the on the columbus upgrades eva or 861 00:32:56,789 --> 00:32:54,960 uscva69 was get partially mated so we 862 00:32:58,149 --> 00:32:56,799 weren't sure exactly how far those pins 863 00:32:58,950 --> 00:32:58,159 were engaged 864 00:33:00,950 --> 00:32:58,960 so 865 00:33:03,190 --> 00:33:00,960 what we've seen from photos is that it 866 00:33:04,470 --> 00:33:03,200 looks like these sockets here i don't 867 00:33:06,870 --> 00:33:04,480 know how well you can see them but these 868 00:33:08,630 --> 00:33:06,880 sockets here have kind of closed up and 869 00:33:11,190 --> 00:33:08,640 they're not as open as we expected which 870 00:33:14,310 --> 00:33:11,200 we think may be inhibiting the pins from 871 00:33:16,230 --> 00:33:14,320 fully engaging so we've got an eda tool 872 00:33:17,909 --> 00:33:16,240 which is you know similar to a pin in 873 00:33:20,549 --> 00:33:17,919 shape and size that we're going to put 874 00:33:22,710 --> 00:33:20,559 in there in order to spread apart these 875 00:33:24,389 --> 00:33:22,720 tines in case they're stuck together in 876 00:33:26,630 --> 00:33:24,399 any way and so 877 00:33:29,190 --> 00:33:26,640 hopefully with that we'll be able to 878 00:33:31,830 --> 00:33:29,200 mate it again and uh and get a good mate 879 00:33:34,230 --> 00:33:31,840 of the p1 and p2 connector 880 00:33:35,909 --> 00:33:34,240 and um and be successful there so you 881 00:33:37,590 --> 00:33:35,919 know if it's something that we're going 882 00:33:39,269 --> 00:33:37,600 to go out there and try and if not we'll 883 00:33:40,710 --> 00:33:39,279 gather a lot of good information and be 884 00:33:41,590 --> 00:33:40,720 able to go out there again and get it 885 00:33:44,230 --> 00:33:41,600 done 886 00:33:49,110 --> 00:33:44,240 so we'll go back to the video and look 887 00:33:55,430 --> 00:33:52,470 ev1 will retrieve a foot restraint to 888 00:33:58,470 --> 00:33:55,440 help with the installation of the weta 889 00:34:00,870 --> 00:33:58,480 the weta is basically an antenna that 890 00:34:03,350 --> 00:34:00,880 provides coverage for the wireless video 891 00:34:05,430 --> 00:34:03,360 system on the crew members helmets once 892 00:34:08,310 --> 00:34:05,440 that foot restraint is set up ev1 will 893 00:34:10,310 --> 00:34:08,320 grab the bag and ingress there are three 894 00:34:12,700 --> 00:34:10,320 bolts that they need to drive to remove 895 00:34:13,990 --> 00:34:12,710 the failed weta 896 00:34:16,310 --> 00:34:14,000 [Music] 897 00:34:18,790 --> 00:34:16,320 stow that on the bag and install the new 898 00:34:21,750 --> 00:34:18,800 one i'm driving three more bolts to put 899 00:34:23,430 --> 00:34:21,760 it in place and make the connector 900 00:34:25,589 --> 00:34:23,440 once that's done it will be checked out 901 00:34:28,149 --> 00:34:25,599 verified that it works 902 00:34:29,669 --> 00:34:28,159 ev1 will head back to the air lock 903 00:34:34,310 --> 00:34:29,679 stow the bag 904 00:34:38,470 --> 00:34:37,109 eb2 will then head out to the cp9 905 00:34:40,550 --> 00:34:38,480 worksite 906 00:34:42,230 --> 00:34:40,560 where they will be routing an ethernet 907 00:34:43,430 --> 00:34:42,240 cable that runs out to one of our 908 00:34:45,510 --> 00:34:43,440 cameras 909 00:34:47,030 --> 00:34:45,520 once that camera is replaced this cable 910 00:34:50,230 --> 00:34:47,040 will be connected to it so that it can 911 00:34:52,149 --> 00:34:50,240 become a wi-fi hotspot they'll be using 912 00:34:54,310 --> 00:34:52,159 wire ties to hold it in place along 913 00:34:55,990 --> 00:34:54,320 handrail paths 914 00:34:57,589 --> 00:34:56,000 as you see here 915 00:35:00,230 --> 00:34:57,599 and that cable will be coiled at the 916 00:35:01,990 --> 00:35:00,240 base of the camera again to be connected 917 00:35:03,030 --> 00:35:02,000 once the new camera is installed in that 918 00:35:06,069 --> 00:35:03,040 location 919 00:35:08,790 --> 00:35:06,079 eb-2 will translate back to the airlock 920 00:35:11,920 --> 00:35:08,800 where both crew members will ingress and 921 00:35:15,510 --> 00:35:11,930 complete u.s eba 72. 922 00:35:17,109 --> 00:35:15,520 [Music] 923 00:35:20,550 --> 00:35:17,119 all right uh next i'd like to mention 924 00:35:22,069 --> 00:35:20,560 the crew for these edas uh ev1 will be 925 00:35:25,349 --> 00:35:22,079 kate rubins again 926 00:35:27,829 --> 00:35:25,359 and this time ed2 will be suichi naguchi 927 00:35:29,589 --> 00:35:27,839 uh kate will be ev1 wearing the red 928 00:35:31,750 --> 00:35:29,599 stripes and suicinagucci will have the 929 00:35:33,349 --> 00:35:31,760 suit with the white stripes this will be 930 00:35:35,190 --> 00:35:33,359 the fourth eva for both of these crew 931 00:35:37,349 --> 00:35:35,200 members and their first time working 932 00:35:39,910 --> 00:35:37,359 together outside on an eva 933 00:35:41,589 --> 00:35:39,920 but they have both seen 934 00:35:43,109 --> 00:35:41,599 at least most of these tasks in the 935 00:35:44,630 --> 00:35:43,119 neutral buoyancy lab so they're very 936 00:35:46,230 --> 00:35:44,640 familiar with them and 937 00:35:48,470 --> 00:35:46,240 as we mentioned they've been training 938 00:35:50,069 --> 00:35:48,480 already and are getting familiar with 939 00:35:51,589 --> 00:35:50,079 all the different tasks that that may be 940 00:35:53,829 --> 00:35:51,599 coming their way 941 00:35:55,430 --> 00:35:53,839 inside the vehicle mike hopkins and 942 00:35:57,190 --> 00:35:55,440 victor glover will be the ones getting 943 00:35:59,349 --> 00:35:57,200 them suited up and ready to go out the 944 00:36:02,069 --> 00:35:59,359 door and then again we'll have frank 945 00:36:03,829 --> 00:36:02,079 rubio on the ground as our ground iv 946 00:36:06,630 --> 00:36:03,839 they'll be walking the crew members 947 00:36:08,710 --> 00:36:06,640 through all of these individual tasks so 948 00:36:10,069 --> 00:36:08,720 you know again we we have some 949 00:36:11,589 --> 00:36:10,079 flexibility here as to what's going to 950 00:36:13,190 --> 00:36:11,599 happen with this eba but where we've got 951 00:36:15,349 --> 00:36:13,200 a number of tasks that are potted so 952 00:36:17,430 --> 00:36:15,359 we'll be ready to go see what happens on 953 00:36:18,870 --> 00:36:17,440 the first dva and accommodate with the 954 00:36:20,150 --> 00:36:18,880 second one so 955 00:36:22,150 --> 00:36:20,160 with that i'll turn it back over to you 956 00:36:24,069 --> 00:36:22,160 gary 957 00:36:26,150 --> 00:36:24,079 thank you art and thanks to our briefers 958 00:36:28,470 --> 00:36:26,160 for those initial remarks we'll now open 959 00:36:30,310 --> 00:36:28,480 it up for questions again if you're on 960 00:36:31,990 --> 00:36:30,320 our phone bridge please press star one 961 00:36:34,230 --> 00:36:32,000 to submit a question and once your name 962 00:36:36,150 --> 00:36:34,240 is called please state your name 963 00:36:37,990 --> 00:36:36,160 affiliation and to whom you'd like to 964 00:36:39,510 --> 00:36:38,000 direct your question if you find that 965 00:36:41,990 --> 00:36:39,520 your question has already been answered 966 00:36:45,190 --> 00:36:42,000 press star 2 to withdraw it on social 967 00:36:47,109 --> 00:36:45,200 media please use the hashtag ask nasa 968 00:36:51,589 --> 00:36:47,119 let's start on our phone bridge with 969 00:36:56,550 --> 00:36:54,630 yeah hi there my question is for kenny 970 00:36:59,190 --> 00:36:56,560 or anybody who feels that they can take 971 00:37:01,910 --> 00:36:59,200 it is the placement of the new solar 972 00:37:05,349 --> 00:37:01,920 arrays decided and is that decision set 973 00:37:08,470 --> 00:37:07,750 the placement of this new solar uh yes 974 00:37:17,510 --> 00:37:08,480 we 975 00:37:19,510 --> 00:37:17,520 to 976 00:37:22,150 --> 00:37:19,520 outfit them in certain places on station 977 00:37:24,150 --> 00:37:22,160 so yes at this point um we're putting 978 00:37:26,550 --> 00:37:24,160 them in the places where quite frankly 979 00:37:29,349 --> 00:37:26,560 the older older arrays are the ones that 980 00:37:30,790 --> 00:37:29,359 have been exposed uh the longest and so 981 00:37:31,510 --> 00:37:30,800 uh yes they 982 00:37:35,349 --> 00:37:31,520 the 983 00:37:51,030 --> 00:37:37,510 this next question comes from marsha 984 00:37:53,990 --> 00:37:52,310 marcia if you're asking your question 985 00:37:55,510 --> 00:37:54,000 we're not able to hear you we'll give 986 00:37:58,710 --> 00:37:55,520 you another couple 987 00:38:00,470 --> 00:37:58,720 okay are you army now you are on 988 00:38:01,990 --> 00:38:00,480 oh i'm sorry thank you a couple 989 00:38:03,670 --> 00:38:02,000 questions for kenny 990 00:38:06,230 --> 00:38:03,680 um i'm wondering when are the new solar 991 00:38:08,310 --> 00:38:06,240 panels launching and on what vehicle 992 00:38:10,230 --> 00:38:08,320 um why are you staging this first 993 00:38:12,069 --> 00:38:10,240 spacewalk on a sunday morning and i 994 00:38:14,630 --> 00:38:12,079 think it's even an extra hour earlier 995 00:38:16,390 --> 00:38:14,640 than usual a real early bird special 996 00:38:20,390 --> 00:38:16,400 what's the reasoning behind that is 997 00:38:22,870 --> 00:38:20,400 there any rush and lastly um when does 998 00:38:24,630 --> 00:38:22,880 the current crew one need to come back 999 00:38:26,069 --> 00:38:24,640 down to earth and is it a big deal if 1000 00:38:29,910 --> 00:38:26,079 they're not up there 1001 00:38:33,589 --> 00:38:29,920 to greet the crew to in person thank you 1002 00:38:35,750 --> 00:38:33,599 okay hi marcia um well uh 1003 00:38:37,990 --> 00:38:35,760 first of all um the new arrays will 1004 00:38:40,790 --> 00:38:38,000 start arriving on spacex 22 which is 1005 00:38:42,950 --> 00:38:40,800 coming up in early june um after that 1006 00:38:44,790 --> 00:38:42,960 we'll have a flight spacex 23 that will 1007 00:38:46,710 --> 00:38:44,800 not have any soil arrays and then we'll 1008 00:38:47,670 --> 00:38:46,720 pick up the next set uh after that in 1009 00:38:50,150 --> 00:38:47,680 the fall 1010 00:38:51,430 --> 00:38:50,160 so this year we're we're anticipating uh 1011 00:38:53,829 --> 00:38:51,440 you know starting the deployment of 1012 00:38:55,670 --> 00:38:53,839 these solar rays as early as june so 1013 00:38:57,270 --> 00:38:55,680 again very excited which is one reason 1014 00:38:59,190 --> 00:38:57,280 we want to go ahead and get these evas 1015 00:39:01,430 --> 00:38:59,200 in our rear view mirror and get to get 1016 00:39:03,670 --> 00:39:01,440 all the support structure in place 1017 00:39:05,750 --> 00:39:03,680 to be able to handle that so 1018 00:39:08,550 --> 00:39:05,760 uh as far as uh 1019 00:39:11,430 --> 00:39:08,560 um i don't know the exact date when the 1020 00:39:12,790 --> 00:39:11,440 when the crew needs to come home for uh 1021 00:39:15,589 --> 00:39:12,800 for a 1022 00:39:17,510 --> 00:39:15,599 crew one and and what i'm thinking in my 1023 00:39:19,910 --> 00:39:17,520 mind is when does that vehicle time out 1024 00:39:21,829 --> 00:39:19,920 if you will uh but uh we have we have 1025 00:39:23,349 --> 00:39:21,839 some runway on that uh we're still 1026 00:39:26,069 --> 00:39:23,359 trying to finalize the dates and working 1027 00:39:29,109 --> 00:39:26,079 with commercial crew program on on when 1028 00:39:31,270 --> 00:39:29,119 we uh when we would be ready to to send 1029 00:39:32,630 --> 00:39:31,280 that vehicle home but obviously those 1030 00:39:34,790 --> 00:39:32,640 are all the things that we're keeping in 1031 00:39:37,190 --> 00:39:34,800 mind this is you know what's the right 1032 00:39:39,670 --> 00:39:37,200 way to do a handover do we need to hand 1033 00:39:42,390 --> 00:39:39,680 over um and again trying to be 1034 00:39:45,030 --> 00:39:42,400 respectful of the limits of the vehicle 1035 00:39:48,870 --> 00:39:45,040 itself so anyway at this point uh our 1036 00:39:50,710 --> 00:39:48,880 crew 2 is currently scheduled for before 1037 00:39:52,630 --> 00:39:50,720 you know no earlier than is what we're 1038 00:39:53,670 --> 00:39:52,640 saying but uh 1039 00:39:55,910 --> 00:39:53,680 again 1040 00:39:58,470 --> 00:39:55,920 at this point the crew one day or return 1041 00:39:59,990 --> 00:39:58,480 hasn't been finalized so again those are 1042 00:40:01,829 --> 00:40:00,000 all the students that are that are still 1043 00:40:03,990 --> 00:40:01,839 in work and our friends from the 1044 00:40:05,430 --> 00:40:04,000 commercial crew program will continue to 1045 00:40:08,150 --> 00:40:05,440 evaluate that they're working with the 1046 00:40:09,829 --> 00:40:08,160 iss for both of us in the iss program 1047 00:40:12,230 --> 00:40:09,839 and when the time is right we'll uh 1048 00:40:13,589 --> 00:40:12,240 we'll we'll get those dates out and uh 1049 00:40:15,270 --> 00:40:13,599 once we understand that we've got a good 1050 00:40:18,069 --> 00:40:15,280 supportable plan 1051 00:40:20,069 --> 00:40:18,079 as far as uh the timing of the eva quite 1052 00:40:21,670 --> 00:40:20,079 quite frankly marcia it's not really a 1053 00:40:23,510 --> 00:40:21,680 monday through friday kind of program 1054 00:40:24,950 --> 00:40:23,520 and i think all these guys here with me 1055 00:40:26,630 --> 00:40:24,960 as you see them smiling would agree 1056 00:40:27,589 --> 00:40:26,640 that's the case 1057 00:40:30,069 --> 00:40:27,599 we 1058 00:40:32,309 --> 00:40:30,079 kind of try to do things when when the 1059 00:40:34,470 --> 00:40:32,319 time permits us to do them 1060 00:40:36,309 --> 00:40:34,480 again there's a basically a stack of 1061 00:40:37,270 --> 00:40:36,319 dominoes between now and the end of this 1062 00:40:39,670 --> 00:40:37,280 increment 1063 00:40:41,589 --> 00:40:39,680 and uh i've asked the team to to look at 1064 00:40:43,990 --> 00:40:41,599 it like it's a you know seven day a week 1065 00:40:46,069 --> 00:40:44,000 kind of kind of deal that we're in um 1066 00:40:48,150 --> 00:40:46,079 and and wherever the right time is to do 1067 00:40:49,670 --> 00:40:48,160 an eda we'll go through an eda 1068 00:40:51,349 --> 00:40:49,680 and it puts a little extra burden on the 1069 00:40:54,470 --> 00:40:51,359 planters because we have to continue to 1070 00:40:56,630 --> 00:40:54,480 maintain you know good uh good true work 1071 00:40:58,309 --> 00:40:56,640 rest cycle that's part of our ongoing 1072 00:41:00,230 --> 00:40:58,319 job day in day out make sure we've got a 1073 00:41:02,230 --> 00:41:00,240 good refreshed cruise and ready to 1074 00:41:04,630 --> 00:41:02,240 respond to anything that might go on at 1075 00:41:06,470 --> 00:41:04,640 any particular time of day on station 1076 00:41:08,630 --> 00:41:06,480 and so so that's part of an ongoing 1077 00:41:10,150 --> 00:41:08,640 challenge but uh but really we don't 1078 00:41:11,829 --> 00:41:10,160 constrain ourselves till monday through 1079 00:41:14,230 --> 00:41:11,839 friday operation in fact a lot of our 1080 00:41:17,349 --> 00:41:14,240 science you know it's time 1081 00:41:18,710 --> 00:41:17,359 time constrained science and so uh 1082 00:41:20,790 --> 00:41:18,720 it's not out of the realm for us to be 1083 00:41:23,589 --> 00:41:20,800 working science on on saturday and 1084 00:41:25,270 --> 00:41:23,599 sunday as well so so that's uh 1085 00:41:26,550 --> 00:41:25,280 that's how we got the sunday eva it's 1086 00:41:30,230 --> 00:41:26,560 just basically where it worked out 1087 00:41:35,670 --> 00:41:32,390 next question is from bill harwood from 1088 00:41:38,550 --> 00:41:35,680 cbs news hey thanks just making sure you 1089 00:41:40,470 --> 00:41:38,560 can hear me okay we hear you fine bill 1090 00:41:42,790 --> 00:41:40,480 thanks um i got a couple of questions 1091 00:41:45,109 --> 00:41:42,800 here one one eva related and then the 1092 00:41:46,870 --> 00:41:45,119 others for kenny um 1093 00:41:48,069 --> 00:41:46,880 when do you hope to begin and complete 1094 00:41:50,230 --> 00:41:48,079 the installation in other words when 1095 00:41:51,829 --> 00:41:50,240 would you hope under current schedules 1096 00:41:54,950 --> 00:41:51,839 to finish the last 1097 00:41:56,790 --> 00:41:54,960 actual install of an irosa panel 1098 00:41:57,589 --> 00:41:56,800 i was curious why three and not four i 1099 00:41:59,109 --> 00:41:57,599 mean 1100 00:42:01,190 --> 00:41:59,119 more power is better but then i guess 1101 00:42:03,430 --> 00:42:01,200 that's lifetime of program involved 1102 00:42:04,870 --> 00:42:03,440 there and can somebody compare the power 1103 00:42:06,630 --> 00:42:04,880 before and after 1104 00:42:07,990 --> 00:42:06,640 uh when you add these guys 1105 00:42:17,430 --> 00:42:08,000 and then kenny i got to follow up for 1106 00:42:21,349 --> 00:42:19,589 and kenny i'll let you take those uh 1107 00:42:22,550 --> 00:42:21,359 power questions 1108 00:42:25,109 --> 00:42:22,560 i didn't know if you guys wanted to jump 1109 00:42:27,270 --> 00:42:25,119 on that or not so okay uh yeah we're 1110 00:42:29,510 --> 00:42:27,280 we're gonna be launching solar rays uh 1111 00:42:32,870 --> 00:42:29,520 you know over the end of next year uh 1112 00:42:34,309 --> 00:42:32,880 bill again trying to find out that we'll 1113 00:42:36,470 --> 00:42:34,319 take that we'll take the power i think 1114 00:42:39,349 --> 00:42:36,480 from about 160 1115 00:42:41,670 --> 00:42:39,359 kilowatts up to about 215 kilowatts 1116 00:42:42,710 --> 00:42:41,680 so as we look forward in the program and 1117 00:42:44,470 --> 00:42:42,720 look at 1118 00:42:46,470 --> 00:42:44,480 the amount of users that were they're 1119 00:42:48,470 --> 00:42:46,480 coming on board that quite frankly are 1120 00:42:50,309 --> 00:42:48,480 are uh you know looking for power that 1121 00:42:53,270 --> 00:42:50,319 that we didn't even dream of back in in 1122 00:42:55,270 --> 00:42:53,280 the mid 90s um and and the technology 1123 00:42:57,990 --> 00:42:55,280 really has gotten to the point in the 1124 00:42:59,510 --> 00:42:58,000 power generation that that uh we can do 1125 00:43:01,430 --> 00:42:59,520 something like these these roll out 1126 00:43:03,270 --> 00:43:01,440 solar arrays and uh you know they're not 1127 00:43:05,270 --> 00:43:03,280 as big as the ones that we previously 1128 00:43:07,750 --> 00:43:05,280 deployed and yet we can we can get even 1129 00:43:10,230 --> 00:43:07,760 more power out of them so uh anyway it 1130 00:43:12,470 --> 00:43:10,240 just uh it just made good sense uh with 1131 00:43:14,790 --> 00:43:12,480 regard to the program and and 1132 00:43:16,390 --> 00:43:14,800 trying to be a accommodate as much as we 1133 00:43:18,630 --> 00:43:16,400 can all the different users that are 1134 00:43:20,069 --> 00:43:18,640 coming on board and so so anyway uh 1135 00:43:21,589 --> 00:43:20,079 we'll get started this year deploying 1136 00:43:22,630 --> 00:43:21,599 solar rays and we'll be doing it in the 1137 00:43:25,349 --> 00:43:22,640 next year 1138 00:43:26,870 --> 00:43:25,359 um as uh you know as these as these 1139 00:43:29,510 --> 00:43:26,880 flights are 1140 00:43:31,109 --> 00:43:29,520 you know fill out the manifest um 1141 00:43:33,190 --> 00:43:31,119 next year 1142 00:43:35,589 --> 00:43:33,200 um so anyway that's that's that's the 1143 00:43:39,030 --> 00:43:35,599 thinking that's and that's uh that's the 1144 00:43:40,470 --> 00:43:39,040 increase in power that we're expecting 1145 00:43:43,270 --> 00:43:40,480 kenny if i could just follow up one more 1146 00:43:44,870 --> 00:43:43,280 for you um looking ahead to the the 1147 00:43:47,349 --> 00:43:44,880 soyuz cruise station when do you expect 1148 00:43:49,430 --> 00:43:47,359 decision on a u.s astronaut 1149 00:43:50,630 --> 00:43:49,440 riding up on the soyuz i was wondering 1150 00:43:52,870 --> 00:43:50,640 if you could tell us a little about the 1151 00:43:55,109 --> 00:43:52,880 arrangements they seem a little 1152 00:43:56,550 --> 00:43:55,119 hazy to some of us on the outside and 1153 00:43:58,790 --> 00:43:56,560 and who the candidate is i mean i know 1154 00:43:59,990 --> 00:43:58,800 you guys obviously know who that is but 1155 00:44:02,390 --> 00:44:00,000 uh if you could tell us anything about 1156 00:44:05,030 --> 00:44:02,400 that i'd sure appreciate it thanks 1157 00:44:06,550 --> 00:44:05,040 yeah bill uh unfortunately i'm not in a 1158 00:44:09,670 --> 00:44:06,560 position to be able to clear up your 1159 00:44:11,510 --> 00:44:09,680 haziness um as it relates to the seed 1160 00:44:13,510 --> 00:44:11,520 you know that's a um from our 1161 00:44:16,069 --> 00:44:13,520 perspective that's an active procurement 1162 00:44:17,829 --> 00:44:16,079 right now and and uh really just not in 1163 00:44:19,270 --> 00:44:17,839 a position where we can we can talk 1164 00:44:20,710 --> 00:44:19,280 about it you know there's a synopsis out 1165 00:44:23,510 --> 00:44:20,720 there on the street everybody's seeing 1166 00:44:25,349 --> 00:44:23,520 it and by definition that puts us in 1167 00:44:27,750 --> 00:44:25,359 in the realm of an active procurement 1168 00:44:30,150 --> 00:44:27,760 that quite frankly we just can't you 1169 00:44:31,910 --> 00:44:30,160 know talk about at this point 1170 00:44:33,589 --> 00:44:31,920 for a lot of details 1171 00:44:34,870 --> 00:44:33,599 but but as soon as uh you know as soon 1172 00:44:36,230 --> 00:44:34,880 as we get on the back side of that 1173 00:44:38,390 --> 00:44:36,240 certainly we're going to make that 1174 00:44:41,430 --> 00:44:38,400 information available to 1175 00:44:46,470 --> 00:44:43,829 next question comes from mark caro from 1176 00:44:48,390 --> 00:44:46,480 aviation and space tech 1177 00:44:51,510 --> 00:44:48,400 yes thank you i'm going to follow up on 1178 00:44:52,550 --> 00:44:51,520 bill harwood's question about the roses 1179 00:44:57,270 --> 00:44:52,560 can you 1180 00:44:59,670 --> 00:44:57,280 this point are going to be augmented 1181 00:45:02,470 --> 00:44:59,680 with those and maybe it's just the 1182 00:45:07,030 --> 00:45:02,480 oldest solar panels or solar modules but 1183 00:45:12,150 --> 00:45:09,750 marcos if you're able to answer that one 1184 00:45:13,430 --> 00:45:12,160 all right at least not about six of them 1185 00:45:15,430 --> 00:45:13,440 i think we're planning for six out of 1186 00:45:17,750 --> 00:45:15,440 the total eight arrays i can tell you 1187 00:45:20,390 --> 00:45:17,760 right now at least for the the first tvs 1188 00:45:21,990 --> 00:45:20,400 we're looking at pcb and 4b i do know 1189 00:45:23,349 --> 00:45:22,000 that uh some of the ebook channels are 1190 00:45:25,910 --> 00:45:23,359 going to get some of them as well 1191 00:45:29,430 --> 00:45:25,920 including 3a and 4a 1192 00:45:31,030 --> 00:45:29,440 i'm a little bit hazy on the other two 1193 00:45:32,950 --> 00:45:31,040 but i do know that at least six of the 1194 00:45:34,309 --> 00:45:32,960 eight or eight are going to get the new 1195 00:45:35,510 --> 00:45:34,319 upgrades for sure throughout the next 1196 00:45:37,109 --> 00:45:35,520 year 1197 00:45:38,630 --> 00:45:37,119 that's that's the number that we're on 1198 00:45:40,230 --> 00:45:38,640 right now at six of eight we'll have 1199 00:45:43,109 --> 00:45:40,240 enough that's what we've 1200 00:45:44,150 --> 00:45:43,119 that's what we've procured um and again 1201 00:45:45,589 --> 00:45:44,160 uh 1202 00:45:47,430 --> 00:45:45,599 same thing mark we're going to we're 1203 00:45:49,990 --> 00:45:47,440 going to target the arrays that that 1204 00:45:52,950 --> 00:45:50,000 have been up there the longest and have 1205 00:45:55,349 --> 00:45:52,960 had the most exposure 1206 00:45:58,390 --> 00:45:55,359 will the additional power give you some 1207 00:46:01,190 --> 00:45:58,400 new capability in terms of um 1208 00:46:03,430 --> 00:46:01,200 something specific on the space station 1209 00:46:05,270 --> 00:46:03,440 that's not there now that might be 1210 00:46:07,589 --> 00:46:05,280 oriented towards the 1211 00:46:09,670 --> 00:46:07,599 future deep space or is this kind of 1212 00:46:10,870 --> 00:46:09,680 just going to be a capability you have 1213 00:46:13,430 --> 00:46:10,880 and you can 1214 00:46:15,750 --> 00:46:13,440 uh kind of figure out who gets to use it 1215 00:46:17,829 --> 00:46:15,760 as you go 1216 00:46:19,109 --> 00:46:17,839 that's correct you're right on mark uh 1217 00:46:21,430 --> 00:46:19,119 at this point 1218 00:46:24,470 --> 00:46:21,440 it's more of a robustness 1219 00:46:27,750 --> 00:46:25,829 increase 1220 00:46:29,829 --> 00:46:27,760 again what we're seeing is we're seeing 1221 00:46:31,589 --> 00:46:29,839 more and more requests for power 1222 00:46:33,910 --> 00:46:31,599 especially as we're deploying from the 1223 00:46:36,950 --> 00:46:33,920 internal platform again talking earlier 1224 00:46:38,150 --> 00:46:36,960 about the bartolomeo you know there are 1225 00:46:39,430 --> 00:46:38,160 users that are going to be going on to 1226 00:46:40,950 --> 00:46:39,440 that platform they're going to need 1227 00:46:43,589 --> 00:46:40,960 power these are things that when we 1228 00:46:46,150 --> 00:46:43,599 started station and scoped 1229 00:46:47,510 --> 00:46:46,160 killed the requirements for stations 1230 00:46:49,589 --> 00:46:47,520 that we hadn't necessarily thought about 1231 00:46:51,750 --> 00:46:49,599 at the time so uh 1232 00:46:53,270 --> 00:46:51,760 i think it's more of a robustness 1233 00:46:55,910 --> 00:46:53,280 increase that we're going to experience 1234 00:46:57,030 --> 00:46:55,920 and and again that'll allow us to 1235 00:47:01,750 --> 00:46:57,040 accommodate 1236 00:47:07,349 --> 00:47:04,069 next question is from hanaki waitering 1237 00:47:11,430 --> 00:47:09,270 hi this is monica from space.com thank 1238 00:47:12,950 --> 00:47:11,440 you for taking my questions i think this 1239 00:47:14,550 --> 00:47:12,960 is probably for chris 1240 00:47:17,030 --> 00:47:14,560 um so i read that the astronauts might 1241 00:47:18,870 --> 00:47:17,040 be installing a stiffener on the quest 1242 00:47:20,710 --> 00:47:18,880 airlock thermal cover and i'm wondering 1243 00:47:22,790 --> 00:47:20,720 is that still on the docket for the 1244 00:47:24,710 --> 00:47:22,800 march 5th spacewalk and also can you 1245 00:47:27,030 --> 00:47:24,720 talk a little bit about what exactly the 1246 00:47:29,910 --> 00:47:27,040 problem was there and why this type of a 1247 00:47:32,230 --> 00:47:29,920 fix is necessary thank you 1248 00:47:34,790 --> 00:47:32,240 sure i'll take that question uh we did 1249 00:47:37,109 --> 00:47:34,800 indeed plan to install a stiffener which 1250 00:47:39,910 --> 00:47:37,119 is essentially a metal ring 1251 00:47:41,190 --> 00:47:39,920 on the uh the airlock hatch cover 1252 00:47:42,950 --> 00:47:41,200 actually we have a graphic for that if 1253 00:47:44,870 --> 00:47:42,960 the producer wants to pull that up 1254 00:47:47,670 --> 00:47:44,880 so we have a kevlar you can see in the 1255 00:47:49,910 --> 00:47:47,680 middle of the the graphic there a kevlar 1256 00:47:51,910 --> 00:47:49,920 thermal cover that covers the airlock 1257 00:47:53,750 --> 00:47:51,920 hatch the metal hatch underneath it and 1258 00:47:55,990 --> 00:47:53,760 it's designed to keep the hatch at a 1259 00:47:58,069 --> 00:47:56,000 nice cozy temperature so the mechanism 1260 00:48:00,230 --> 00:47:58,079 works fine but what we've seen over the 1261 00:48:01,510 --> 00:48:00,240 years is the edges of that uh 1262 00:48:03,990 --> 00:48:01,520 flexible 1263 00:48:05,589 --> 00:48:04,000 thermal cover have tended to warp and we 1264 00:48:07,910 --> 00:48:05,599 call it potato chipping because it 1265 00:48:08,630 --> 00:48:07,920 doesn't quite seal well enough so we 1266 00:48:09,990 --> 00:48:08,640 have to 1267 00:48:11,910 --> 00:48:10,000 install the metal ring that's on the 1268 00:48:14,150 --> 00:48:11,920 left side of the graphic there to sort 1269 00:48:16,470 --> 00:48:14,160 of you know force that that thermal 1270 00:48:19,510 --> 00:48:16,480 cover to be a nice flat shape so that it 1271 00:48:21,430 --> 00:48:19,520 does its job better um so but right now 1272 00:48:23,589 --> 00:48:21,440 with the way the timeline is laid out 1273 00:48:25,829 --> 00:48:23,599 for the second eba we will not have time 1274 00:48:29,109 --> 00:48:25,839 to do this task um we're going to go 1275 00:48:30,710 --> 00:48:29,119 ahead and prioritize uh the columbus 1276 00:48:33,510 --> 00:48:30,720 electrical connector troubleshooting 1277 00:48:35,990 --> 00:48:33,520 ahead of this so um we'll just go ahead 1278 00:48:38,870 --> 00:48:36,000 and plan to do this thermal cover uh 1279 00:48:40,950 --> 00:48:38,880 stiffener install on a later dba or if 1280 00:48:43,750 --> 00:48:40,960 we get lucky and get really far ahead on 1281 00:48:45,510 --> 00:48:43,760 on you know the first eva that marcos 1282 00:48:47,190 --> 00:48:45,520 and his team are going to perform then 1283 00:48:49,109 --> 00:48:47,200 uh then then we could potentially see 1284 00:48:51,030 --> 00:48:49,119 this task getting added back onto the 1285 00:48:52,630 --> 00:48:51,040 timeline for the second eva so we'll 1286 00:48:53,829 --> 00:48:52,640 just have to see the crew has already 1287 00:48:55,510 --> 00:48:53,839 the crew's already received their 1288 00:48:57,750 --> 00:48:55,520 training material on this we've got the 1289 00:48:59,109 --> 00:48:57,760 hardware ready to go so uh 1290 00:49:02,549 --> 00:48:59,119 you know we could see this get added to 1291 00:49:05,829 --> 00:49:04,470 we'll now move on to social media 1292 00:49:07,670 --> 00:49:05,839 questions again if you're on our phone 1293 00:49:09,510 --> 00:49:07,680 bridge press star one to add your name 1294 00:49:11,510 --> 00:49:09,520 to our cue back on social media using 1295 00:49:13,990 --> 00:49:11,520 the hashtag ask nasa this one comes from 1296 00:49:16,309 --> 00:49:14,000 isaiah on twitter uh this one's for art 1297 00:49:19,109 --> 00:49:16,319 what types of tools can we expect to see 1298 00:49:21,030 --> 00:49:19,119 on these spacewalks 1299 00:49:23,430 --> 00:49:21,040 okay that's a great question on the 1300 00:49:24,790 --> 00:49:23,440 first spacewalk for building the mod kit 1301 00:49:26,950 --> 00:49:24,800 you're going to see a lot of the pistol 1302 00:49:29,510 --> 00:49:26,960 grip tools so it's essentially a really 1303 00:49:31,430 --> 00:49:29,520 fancy cordless drill it's got a digital 1304 00:49:33,349 --> 00:49:31,440 readout that can tell you the torques 1305 00:49:35,349 --> 00:49:33,359 and turns on each bolt and so there's 1306 00:49:38,710 --> 00:49:35,359 various settings that allow you to 1307 00:49:40,790 --> 00:49:38,720 program it to the desired torque so 1308 00:49:42,870 --> 00:49:40,800 i think that's the big one that you're 1309 00:49:46,390 --> 00:49:42,880 going to see a lot of 1310 00:49:48,390 --> 00:49:46,400 let's see uh so going back to um the 1311 00:49:50,870 --> 00:49:48,400 vent tool and vent tool extender i think 1312 00:49:53,910 --> 00:49:50,880 that's a pretty important tool um we we 1313 00:49:55,910 --> 00:49:53,920 touched on that one earlier 1314 00:49:56,710 --> 00:49:55,920 i think i think those are the main ones 1315 00:49:59,109 --> 00:49:56,720 you know 1316 00:50:00,390 --> 00:49:59,119 not real tool heavy on these ebas uh 1317 00:50:02,069 --> 00:50:00,400 most of these most of things are going 1318 00:50:06,069 --> 00:50:02,079 to be able to be done with the crew's 1319 00:50:07,910 --> 00:50:06,079 hands um before routing the cp8 and cp9 1320 00:50:09,750 --> 00:50:07,920 cables you know we have what's called a 1321 00:50:11,349 --> 00:50:09,760 real bag so this is kind of like a 1322 00:50:13,109 --> 00:50:11,359 garden hose if you will you know you 1323 00:50:14,870 --> 00:50:13,119 have your garden hose that's wrapped up 1324 00:50:16,870 --> 00:50:14,880 on a reel the crew will have that 1325 00:50:18,470 --> 00:50:16,880 attached to them and then that cable 1326 00:50:20,150 --> 00:50:18,480 will deploy out 1327 00:50:21,990 --> 00:50:20,160 as they head out to the work site and 1328 00:50:24,309 --> 00:50:22,000 tie it down with wire ties along the way 1329 00:50:28,390 --> 00:50:24,319 so i think those are the major tools 1330 00:50:33,270 --> 00:50:31,109 next question comes from uh rohan on 1331 00:50:35,589 --> 00:50:33,280 twitter he's asking with one of the 1332 00:50:37,990 --> 00:50:35,599 astronauts performing two of the evas 1333 00:50:41,670 --> 00:50:38,000 how is rest time factored into spacewalk 1334 00:50:42,390 --> 00:50:41,680 planning uh this one could go to chris 1335 00:50:44,870 --> 00:50:42,400 sure 1336 00:50:46,790 --> 00:50:44,880 we actually plan recovery time uh after 1337 00:50:47,990 --> 00:50:46,800 the the eva so that gives the crew a 1338 00:50:49,349 --> 00:50:48,000 little bit of time 1339 00:50:51,589 --> 00:50:49,359 about half a day off to be able to 1340 00:50:53,109 --> 00:50:51,599 recover from the eva and then the day 1341 00:50:54,950 --> 00:50:53,119 before they go out we also plan about 1342 00:50:56,230 --> 00:50:54,960 half a day's worth of work so again it's 1343 00:50:58,069 --> 00:50:56,240 sort of a light day that gives them a 1344 00:50:59,190 --> 00:50:58,079 chance to rest up to make sure they're 1345 00:51:00,549 --> 00:50:59,200 in really good shape before they head 1346 00:51:02,230 --> 00:51:00,559 out the door for the 1347 00:51:05,349 --> 00:51:02,240 very physically intensive task which is 1348 00:51:10,069 --> 00:51:07,349 okay and we have one more on twitter 1349 00:51:12,950 --> 00:51:10,079 this one's from jonathan he's asking uh 1350 00:51:15,349 --> 00:51:12,960 which emu's uh will be used for reuben's 1351 00:51:18,549 --> 00:51:15,359 glover and the gucci respectively art i 1352 00:51:22,790 --> 00:51:20,069 yeah i'd have to go back and look at my 1353 00:51:25,109 --> 00:51:22,800 data i know 3015 is the the emu that 1354 00:51:26,549 --> 00:51:25,119 kate's going to be using and uh i'd have 1355 00:51:27,750 --> 00:51:26,559 to go back and look at the numbers on 1356 00:51:29,190 --> 00:51:27,760 the other one i didn't bring that chart 1357 00:51:32,710 --> 00:51:29,200 with me but i i can get you that 1358 00:51:36,390 --> 00:51:34,230 and that wraps up our questions on the 1359 00:51:38,630 --> 00:51:36,400 phone bridge and on social media thanks 1360 00:51:40,069 --> 00:51:38,640 to all who submitted questions today and 1361 00:51:42,309 --> 00:51:40,079 thanks to our briefers for taking the 1362 00:51:44,309 --> 00:51:42,319 time to discuss the upcoming spacewalks 1363 00:51:47,670 --> 00:51:44,319 nasa tv coverage will begin at different 1364 00:51:50,390 --> 00:51:47,680 times for each of the evas on february 1365 00:51:53,030 --> 00:51:50,400 28th coverage will begin at 3 30 a.m 1366 00:51:53,750 --> 00:51:53,040 central 4 30 a.m eastern for an eva 1367 00:51:56,710 --> 00:51:53,760 start 1368 00:51:59,910 --> 00:51:56,720 time at 5 00 a.m central 6 a.m eastern 1369 00:52:02,790 --> 00:51:59,920 on march 5th we'll expect this uh 1370 00:52:05,829 --> 00:52:02,800 coverage to start at 4 30 a.m central 5 1371 00:52:08,790 --> 00:52:05,839 30 a.m eastern for an eva start time at 1372 00:52:10,309 --> 00:52:08,800 6 00 a.m central 7 a.m eastern thanks 1373 00:52:33,300 --> 00:52:10,319 again for joining us that will wrap up