1 00:00:05,990 --> 00:00:04,550 the mars polar lander and mars climate 2 00:00:07,909 --> 00:00:06,000 orbiter missions failed 3 00:00:09,589 --> 00:00:07,919 we had to get back in the saddle we had 4 00:00:11,190 --> 00:00:09,599 to get something landed on the surface 5 00:00:12,950 --> 00:00:11,200 of mars 6 00:00:14,870 --> 00:00:12,960 i thought it was honestly it's like a 7 00:00:15,589 --> 00:00:14,880 crazy idea given the amount of time that 8 00:00:17,590 --> 00:00:15,599 we have 9 00:00:19,109 --> 00:00:17,600 the probability of failure was 10 00:00:21,029 --> 00:00:19,119 unacceptable 11 00:00:24,470 --> 00:00:21,039 engineers don't like designing when 12 00:00:28,630 --> 00:00:25,990 they fooled me into taking this job 13 00:00:31,109 --> 00:00:28,640 saying that oh won't be that hard 14 00:00:32,709 --> 00:00:31,119 it's a reflex pathfinder you have all 15 00:00:34,950 --> 00:00:32,719 the pieces there 16 00:00:37,110 --> 00:00:34,960 we knew it would be a challenge but i 17 00:00:39,590 --> 00:00:37,120 don't think we adequately assessed 18 00:00:41,350 --> 00:00:39,600 how difficult it would be i think in the 19 00:00:41,990 --> 00:00:41,360 back of your mind you're always prepared 20 00:00:44,310 --> 00:00:42,000 for 21 00:00:45,910 --> 00:00:44,320 anything to happen but this wasn't one 22 00:00:49,670 --> 00:00:45,920 of the places that we thought 23 00:00:51,510 --> 00:00:49,680 something would go wrong come on man 24 00:00:56,830 --> 00:00:51,520 you don't put a system like this on a 25 00:01:00,310 --> 00:00:58,709 moment trouble is 26 00:01:02,310 --> 00:01:00,320 it's great on paper but until you put it 27 00:01:04,950 --> 00:01:02,320 out there and test it you really don't 28 00:01:06,870 --> 00:01:04,960 know what you have 29 00:01:08,870 --> 00:01:06,880 you know i tell my people that in terms 30 00:01:10,390 --> 00:01:08,880 of my top ten list of worries 31 00:01:11,910 --> 00:01:10,400 the first three are schedule schedule 32 00:01:13,510 --> 00:01:11,920 and schedule and there's nothing in 33 00:01:14,870 --> 00:01:13,520 fourth place 34 00:01:16,550 --> 00:01:14,880 i came to the realization that the 35 00:01:19,190 --> 00:01:16,560 heritage wasn't in the blueprints the 36 00:01:20,870 --> 00:01:19,200 heritage was the people 37 00:01:22,870 --> 00:01:20,880 our next pass through this if it doesn't 38 00:01:25,109 --> 00:01:22,880 come together it's an all-go-home thing 39 00:01:29,030 --> 00:01:25,119 it's an 40 00:01:41,650 --> 00:01:29,040 sixth green over five four three 41 00:01:48,149 --> 00:01:41,660 two one 42 00:02:04,469 --> 00:01:50,870 the end of 1999 the mars polar lander 43 00:02:08,150 --> 00:02:07,109 jpl was responsible for these missions 44 00:02:10,949 --> 00:02:08,160 and that changed 45 00:02:11,670 --> 00:02:10,959 everything there was a loss of 46 00:02:13,030 --> 00:02:11,680 confidence 47 00:02:15,270 --> 00:02:13,040 what had to be done is we had to get 48 00:02:22,309 --> 00:02:15,280 back in the saddle we had to get 49 00:02:27,270 --> 00:02:22,319 something landed on the surface of mars 50 00:02:27,280 --> 00:02:41,670 we have to go back to something we know 51 00:02:45,190 --> 00:02:43,190 and what we knew is we knew the 52 00:02:47,670 --> 00:02:45,200 pathfinder lander and because of that 53 00:02:49,030 --> 00:02:47,680 confidence we can do it in a short time 54 00:03:08,080 --> 00:02:49,040 we got to take the pathfinder laner and 55 00:03:12,390 --> 00:03:09,990 [Applause] 56 00:03:14,470 --> 00:03:12,400 here we go six pulses for equalization f 57 00:03:21,509 --> 00:03:14,480 minus 18 db 58 00:03:26,470 --> 00:03:24,550 we knew at the time we had a three year 59 00:03:27,990 --> 00:03:26,480 project to go to launch that's just very 60 00:03:29,030 --> 00:03:28,000 very tight for a mission of this kind of 61 00:03:31,589 --> 00:03:29,040 complexity 62 00:03:32,710 --> 00:03:31,599 and we've been fighting that challenge 63 00:03:34,710 --> 00:03:32,720 since the beginning 64 00:03:36,550 --> 00:03:34,720 you worry about am i got the right plan 65 00:03:42,390 --> 00:03:36,560 do i really have it figured out 66 00:03:45,509 --> 00:03:44,630 i'll briefly go over launch crews and 67 00:03:47,830 --> 00:03:45,519 edl 68 00:03:49,589 --> 00:03:47,840 and just give you an idea of how the 69 00:03:50,470 --> 00:03:49,599 downlink process works during those 70 00:03:52,710 --> 00:03:50,480 phases 71 00:03:54,470 --> 00:03:52,720 i'll spend a lot more time on surface 72 00:03:55,670 --> 00:03:54,480 specifically the tactical downlink 73 00:03:57,350 --> 00:03:55,680 process 74 00:03:59,670 --> 00:03:57,360 i'll also talk a little bit about a 75 00:04:01,350 --> 00:03:59,680 couple key additional requirements for 76 00:04:01,750 --> 00:04:01,360 red river goes to start getting into 77 00:04:03,589 --> 00:04:01,760 this 78 00:04:04,630 --> 00:04:03,599 cycle of things changing just a little 79 00:04:06,149 --> 00:04:04,640 bit here and just a little bit there and 80 00:04:07,750 --> 00:04:06,159 all of a sudden the mass got heavier and 81 00:04:10,550 --> 00:04:07,760 so other things had to change 82 00:04:11,990 --> 00:04:10,560 your design heritage the blueprint i use 83 00:04:13,589 --> 00:04:12,000 the phrase phrase that i will never use 84 00:04:17,430 --> 00:04:13,599 again because no one will believe me 85 00:04:20,710 --> 00:04:19,030 i said we will take the mars pathfinder 86 00:04:22,230 --> 00:04:20,720 lander and build to print 87 00:04:24,070 --> 00:04:22,240 we will take the blueprints and we will 88 00:04:25,430 --> 00:04:24,080 send it to the machine shop build these 89 00:04:29,350 --> 00:04:25,440 same things again and that will be the 90 00:04:30,390 --> 00:04:29,360 shell that we landed 91 00:04:32,870 --> 00:04:30,400 and then we just have to design this 92 00:04:34,790 --> 00:04:32,880 rover that fits inside 93 00:04:37,110 --> 00:04:34,800 that build to print concept is the one 94 00:04:39,110 --> 00:04:37,120 thing that was completely wrong 95 00:04:44,310 --> 00:04:39,120 the message here is if you see something 96 00:04:47,430 --> 00:04:45,670 i came to the realization that the 97 00:04:49,430 --> 00:04:47,440 heritage wasn't in the blueprints 98 00:04:50,870 --> 00:04:49,440 the heritage was in the people and the 99 00:04:52,390 --> 00:04:50,880 people who designed this thing before 100 00:04:53,990 --> 00:04:52,400 they've gone through this design work 101 00:04:56,629 --> 00:04:54,000 they've experienced all the difficulties 102 00:04:59,990 --> 00:04:56,639 they know how to solve it 103 00:05:15,670 --> 00:05:00,000 and then we have a final tcm 104 00:05:34,950 --> 00:05:23,640 [Music] 105 00:05:41,189 --> 00:05:37,110 they tell us these only weigh 40 pounds 106 00:05:49,270 --> 00:05:43,189 we are building airbag systems to 107 00:05:52,870 --> 00:05:51,029 well we have a deadline to meet for 108 00:05:55,029 --> 00:05:52,880 testing so we have to work a lot of 109 00:05:59,830 --> 00:05:55,039 hours and work hard and get it 110 00:06:02,070 --> 00:05:59,840 done on time and make it work good too 111 00:06:05,590 --> 00:06:02,080 a lot of it is sewing through these 112 00:06:08,629 --> 00:06:08,230 it's very difficult the stuff we coat it 113 00:06:10,870 --> 00:06:08,639 with 114 00:06:12,070 --> 00:06:10,880 makes it hard to go through we've had to 115 00:06:14,790 --> 00:06:12,080 get special needles 116 00:06:15,909 --> 00:06:14,800 special machines and it takes a lot of 117 00:06:18,830 --> 00:06:15,919 strength to 118 00:06:20,629 --> 00:06:18,840 press it out with your fingers and sew 119 00:06:23,990 --> 00:06:20,639 it 120 00:06:26,230 --> 00:06:24,000 i've worked gloves and now and i've 121 00:06:29,909 --> 00:06:26,240 worked these 122 00:06:31,990 --> 00:06:29,919 it's like peas and carrots you know 123 00:06:33,430 --> 00:06:32,000 gloves are more delicate more 124 00:06:37,350 --> 00:06:33,440 complicated 125 00:06:39,510 --> 00:06:37,360 mentally smaller 126 00:06:44,469 --> 00:06:39,520 this is physically challenging because 127 00:06:48,070 --> 00:06:46,230 we have a lot of questions because then 128 00:06:50,309 --> 00:06:48,080 the whole time you're building it 129 00:06:51,749 --> 00:06:50,319 you're wondering is this going to be 130 00:06:54,550 --> 00:06:51,759 right is it going to be okay 131 00:06:55,510 --> 00:06:54,560 is it going to work you can't imagine 132 00:06:57,430 --> 00:06:55,520 the 133 00:06:59,350 --> 00:06:57,440 joy we were jumping up and down when 134 00:07:00,830 --> 00:06:59,360 pathfinder landed it was successful 135 00:07:02,469 --> 00:07:00,840 and that's what we want to bring into 136 00:07:03,909 --> 00:07:02,479 this 137 00:07:05,670 --> 00:07:03,919 how would you feel if you knew that 138 00:07:06,710 --> 00:07:05,680 something you had actually worked on and 139 00:07:10,309 --> 00:07:06,720 touched every day 140 00:07:12,070 --> 00:07:10,319 was on mars our names are on mars 141 00:07:12,309 --> 00:07:12,080 because we got to sign the lander panel 142 00:07:14,309 --> 00:07:12,319 of 143 00:07:37,660 --> 00:07:14,319 pathfinder and believe me we'll have our 144 00:07:56,830 --> 00:07:48,250 [Music] 145 00:07:56,840 --> 00:08:04,710 hello 146 00:08:09,589 --> 00:08:08,070 it's been hit a lot i mean seriously no 147 00:08:10,950 --> 00:08:09,599 no no these things lose a little of 148 00:08:12,710 --> 00:08:10,960 their edge 149 00:08:13,909 --> 00:08:12,720 look it's got the same texture down 150 00:08:15,110 --> 00:08:13,919 underneath where it's never been tested 151 00:08:16,790 --> 00:08:15,120 this is the rocket was causing all the 152 00:08:19,670 --> 00:08:16,800 problems in the last test 153 00:08:21,189 --> 00:08:19,680 so we were right up to the hairy edge 154 00:08:21,830 --> 00:08:21,199 we're supposed to just be checking the 155 00:08:23,110 --> 00:08:21,840 box 156 00:08:25,029 --> 00:08:23,120 we were waiting to see if we had a 157 00:08:26,950 --> 00:08:25,039 working airbag system it was pretty 158 00:08:28,629 --> 00:08:26,960 scary replica 159 00:08:30,309 --> 00:08:28,639 it's a mate you never would have guessed 160 00:08:32,630 --> 00:08:30,319 that this rocket caused so much trouble 161 00:08:34,070 --> 00:08:32,640 no it's not 162 00:08:36,070 --> 00:08:34,080 they fooled me into taking this job 163 00:08:38,149 --> 00:08:36,080 saying that oh won't be that hard 164 00:08:40,870 --> 00:08:38,159 it's a re-flight of mars pathfinder you 165 00:08:43,110 --> 00:08:40,880 have all the pieces there 166 00:08:44,070 --> 00:08:43,120 put it together again it'll work and 167 00:08:46,230 --> 00:08:44,080 every single 168 00:08:47,670 --> 00:08:46,240 last darn piece on that entry descent 169 00:08:49,430 --> 00:08:47,680 landing system had to be redesigned 170 00:08:52,550 --> 00:08:49,440 sometimes almost from scratch 171 00:08:55,750 --> 00:08:52,560 so we're using the reference drop 172 00:08:57,350 --> 00:08:55,760 for this first draw mer as being this 173 00:09:12,560 --> 00:08:57,360 heritage this build to print 174 00:09:12,570 --> 00:09:20,829 [Music] 175 00:09:20,839 --> 00:09:24,240 so 176 00:09:40,470 --> 00:09:32,920 [Music] 177 00:09:44,230 --> 00:09:40,480 i own the overall system responsibility 178 00:09:47,350 --> 00:09:44,240 but effectively i was more of a busybody 179 00:09:49,670 --> 00:09:47,360 getting in adam cessna's way rather than 180 00:09:50,470 --> 00:09:49,680 driving the system i wanted to see 181 00:09:52,310 --> 00:09:50,480 firsthand 182 00:09:54,630 --> 00:09:52,320 to understand the challenges and 183 00:09:57,030 --> 00:09:54,640 sometimes you can't really understand it 184 00:09:58,310 --> 00:09:57,040 unless you're there on site and seeing 185 00:10:00,470 --> 00:09:58,320 all the debates 186 00:10:02,310 --> 00:10:00,480 that bring out those subtle nuances of 187 00:10:05,509 --> 00:10:02,320 the design that you do not hear any 188 00:10:06,870 --> 00:10:05,519 other way we thought we understood 189 00:10:08,949 --> 00:10:06,880 how the airbag system was going to 190 00:10:10,550 --> 00:10:08,959 behave we knew it was marginal and 191 00:10:14,630 --> 00:10:10,560 nobody was expecting it to be 192 00:10:16,630 --> 00:10:14,640 a robust but the initial design 193 00:10:21,030 --> 00:10:16,640 failed and got damaged in ways we were 194 00:10:21,040 --> 00:10:51,990 45 seconds 195 00:10:55,269 --> 00:10:54,310 today we tested at 16 meters per second 196 00:10:57,670 --> 00:10:55,279 and it worked 197 00:10:59,190 --> 00:10:57,680 i would say that you know on one hand we 198 00:11:01,110 --> 00:10:59,200 have good reason to be excited 199 00:11:02,550 --> 00:11:01,120 but on the other hand it was expected to 200 00:11:05,829 --> 00:11:02,560 work at 16 meters per second 201 00:11:08,870 --> 00:11:05,839 we didn't expect this one to fail 202 00:11:26,069 --> 00:11:08,880 wow yeah 203 00:11:31,509 --> 00:11:29,269 look at it wrinkling up catching 204 00:11:32,870 --> 00:11:31,519 that is awesome you can even see a piece 205 00:11:35,590 --> 00:11:32,880 of it looks like 206 00:11:39,269 --> 00:11:35,600 we have some clear damages the 207 00:11:42,790 --> 00:11:40,790 back up a little bit you can actually 208 00:11:45,269 --> 00:11:42,800 see an abrasion layer 209 00:11:47,269 --> 00:11:45,279 lift it off and just sit in there that 210 00:12:04,949 --> 00:11:47,279 piece of abrasion layer is just 211 00:12:09,110 --> 00:12:06,470 what we've got here is what we're 212 00:12:10,150 --> 00:12:09,120 calling classic airbag damage where the 213 00:12:12,470 --> 00:12:10,160 outermost layers 214 00:12:13,910 --> 00:12:12,480 are there as sacrificial elements to 215 00:12:15,509 --> 00:12:13,920 protect the bladder layer 216 00:12:16,949 --> 00:12:15,519 it's a lot like a bulletproof vest it 217 00:12:19,110 --> 00:12:16,959 gets torn up and you 218 00:12:20,949 --> 00:12:19,120 tear the outside part of the the outer 219 00:12:22,710 --> 00:12:20,959 layers of the vest and 220 00:12:53,750 --> 00:12:22,720 you protect the user on the inside in 221 00:12:58,069 --> 00:12:56,629 this tool's formal name is the rock 222 00:13:00,870 --> 00:12:58,079 abrasion tool 223 00:13:02,389 --> 00:13:00,880 and in nasa you have to have your name 224 00:13:05,829 --> 00:13:02,399 shortened to an acronym 225 00:13:09,030 --> 00:13:05,839 so naturally that makes us the creators 226 00:13:12,629 --> 00:13:11,269 i can't tell you how many suggestions i 227 00:13:15,430 --> 00:13:12,639 get almost daily 228 00:13:15,910 --> 00:13:15,440 for logos it's a bit of a joke around 229 00:13:18,150 --> 00:13:15,920 here 230 00:13:32,949 --> 00:13:18,160 uh and in the space science community 231 00:13:39,430 --> 00:13:35,990 one of the biggest issues facing us is 232 00:13:42,470 --> 00:13:39,440 the dusker to prevent the dust 233 00:13:44,790 --> 00:13:42,480 from coming out perhaps billowing up 234 00:13:46,389 --> 00:13:44,800 and damaging the other instruments 235 00:13:48,550 --> 00:13:46,399 however it's a very 236 00:13:49,590 --> 00:13:48,560 slow-moving drill and only sends up 237 00:13:54,230 --> 00:13:49,600 small wisps of 238 00:13:58,710 --> 00:13:56,550 we don't like the skirt it's almost as 239 00:14:00,389 --> 00:13:58,720 like you're saying okay we want to eject 240 00:14:01,350 --> 00:14:00,399 the dust for digging this hole so we can 241 00:14:03,670 --> 00:14:01,360 look in 242 00:14:04,470 --> 00:14:03,680 but we're building a cover right around 243 00:14:28,829 --> 00:14:04,480 the hole 244 00:14:28,839 --> 00:14:33,100 um 245 00:14:33,110 --> 00:14:39,269 [Music] 246 00:14:41,590 --> 00:14:40,389 you know what i recommend though we go 247 00:14:43,509 --> 00:14:41,600 through the report first and then we 248 00:14:46,389 --> 00:14:43,519 just usually won 249 00:14:49,910 --> 00:14:46,399 sure and then we do what what's who asks 250 00:14:53,670 --> 00:14:52,949 there was a discussion that perhaps got 251 00:14:57,269 --> 00:14:53,680 a little 252 00:15:00,389 --> 00:14:57,279 persnickety because the pi 253 00:15:03,590 --> 00:15:00,399 on the telecon said no 254 00:15:07,189 --> 00:15:03,600 we have to keep the skirt in place 255 00:15:07,910 --> 00:15:07,199 and perform yet a whole another round of 256 00:15:09,350 --> 00:15:07,920 tests 257 00:15:11,110 --> 00:15:09,360 but i haven't heard anything do you 258 00:15:13,189 --> 00:15:11,120 think they were going to do that well i 259 00:15:14,150 --> 00:15:13,199 actually i question why why bother doing 260 00:15:16,710 --> 00:15:14,160 that we don't 261 00:15:17,910 --> 00:15:16,720 know what the skirt does at these 262 00:15:19,350 --> 00:15:17,920 different angles we don't know what 263 00:15:20,150 --> 00:15:19,360 happens without insert at these 264 00:15:21,750 --> 00:15:20,160 different angles 265 00:15:24,069 --> 00:15:21,760 this whole thing has been sufficiently 266 00:15:25,910 --> 00:15:24,079 counter-intuitive to me from the get-go 267 00:15:27,509 --> 00:15:25,920 then i'd rather see that's what's going 268 00:15:29,189 --> 00:15:27,519 to happen now wait a minute 269 00:15:30,949 --> 00:15:29,199 trying to sell the van trying to tell 270 00:15:33,189 --> 00:15:30,959 the idea of getting rid of the skirt 271 00:15:34,710 --> 00:15:33,199 is going to be a lot easier if you can 272 00:15:37,110 --> 00:15:34,720 show the tape you know 273 00:15:39,189 --> 00:15:37,120 this thing creates a the skirt actually 274 00:15:41,110 --> 00:15:39,199 hurts things quite a bit 275 00:15:42,470 --> 00:15:41,120 where does the dust go how fast what 276 00:15:44,310 --> 00:15:42,480 velocity does it fly off 277 00:15:45,910 --> 00:15:44,320 at which direction is it going to go etc 278 00:15:46,310 --> 00:15:45,920 i mean is there does it fly off in a 279 00:15:48,710 --> 00:15:46,320 sheet 280 00:15:49,670 --> 00:15:48,720 a cone well that may agree we're going 281 00:15:51,509 --> 00:15:49,680 to test 282 00:15:53,030 --> 00:15:51,519 completely thoroughly i was just 283 00:15:54,629 --> 00:15:53,040 questioning continual testing with the 284 00:15:55,189 --> 00:15:54,639 skirt that's all i just didn't quite 285 00:15:57,350 --> 00:15:55,199 understand 286 00:15:59,189 --> 00:15:57,360 why that should be so extensive we'll do 287 00:16:03,749 --> 00:15:59,199 it handle discussion 288 00:16:04,790 --> 00:16:03,759 okay from their perspective i understand 289 00:16:12,629 --> 00:16:04,800 you know their instruments they're 290 00:16:16,069 --> 00:16:15,269 however engineers don't like designing 291 00:16:28,710 --> 00:16:16,079 when there are 292 00:16:28,720 --> 00:16:42,510 a couple of uh 293 00:16:49,189 --> 00:16:47,030 [Music] 294 00:16:50,870 --> 00:16:49,199 that's the baseline and everything that 295 00:16:52,949 --> 00:16:50,880 these guys talked about 296 00:16:55,110 --> 00:16:52,959 is consistent with that budget there's a 297 00:16:56,710 --> 00:16:55,120 list of threats 298 00:16:58,150 --> 00:16:56,720 that these guys have come to me with and 299 00:17:01,670 --> 00:16:58,160 they've said okay 300 00:17:04,710 --> 00:17:01,680 i may i the more structure may be late 301 00:17:06,470 --> 00:17:04,720 the pma contracted ball may increase 302 00:17:07,909 --> 00:17:06,480 uh the flight software workforce may 303 00:17:09,750 --> 00:17:07,919 stretch to the right 304 00:17:11,510 --> 00:17:09,760 the et cetera et cetera et cetera and 305 00:17:13,029 --> 00:17:11,520 i've added all those threats up they're 306 00:17:15,110 --> 00:17:13,039 in the category of everything we can 307 00:17:16,549 --> 00:17:15,120 think of that can go wrong 308 00:17:17,990 --> 00:17:16,559 although froze would argue that we've 309 00:17:19,189 --> 00:17:18,000 made that claim before and we haven't 310 00:17:21,909 --> 00:17:19,199 thought of everything 311 00:17:22,870 --> 00:17:21,919 i submit that based on the data i gave 312 00:17:25,429 --> 00:17:22,880 you this week 313 00:17:28,470 --> 00:17:25,439 you can't draw that conclusion what is 314 00:17:30,789 --> 00:17:28,480 the internal processes in division 35 315 00:17:31,590 --> 00:17:30,799 to make sure that these promise dates 316 00:17:33,510 --> 00:17:31,600 are going to be met 317 00:17:35,430 --> 00:17:33,520 we are holding the subsystems fee to the 318 00:17:38,390 --> 00:17:35,440 fire as much as we can 319 00:17:39,830 --> 00:17:38,400 what part of this gives you guess where 320 00:17:41,669 --> 00:17:39,840 are you concerned 321 00:17:43,830 --> 00:17:41,679 problem presentation presents to the 322 00:17:46,310 --> 00:17:43,840 board they can't 323 00:17:47,350 --> 00:17:46,320 make a judgment if they were to make a 324 00:17:51,909 --> 00:17:47,360 judgment they'd say 325 00:17:54,549 --> 00:17:51,919 you're in in very very serious trouble 326 00:17:56,549 --> 00:17:54,559 we're not done with this review yet okay 327 00:17:58,310 --> 00:17:56,559 i mean we understand that problem 328 00:17:59,909 --> 00:17:58,320 and if you want us to impress the story 329 00:18:02,549 --> 00:17:59,919 into one hour we can do 330 00:18:03,190 --> 00:18:02,559 it that's not going to work here i mean 331 00:18:05,270 --> 00:18:03,200 clearly 332 00:18:06,230 --> 00:18:05,280 he does not shift his knee date to the 333 00:18:08,310 --> 00:18:06,240 delivery date 334 00:18:10,310 --> 00:18:08,320 just as a matter of principle every time 335 00:18:11,909 --> 00:18:10,320 it happens we go through a very long 336 00:18:15,350 --> 00:18:11,919 process of trying to push back on the 337 00:18:17,350 --> 00:18:15,360 subsystems the procedures have got to be 338 00:18:19,669 --> 00:18:17,360 more self-contained john's right we've 339 00:18:21,830 --> 00:18:19,679 got to clean it up mechanisms 340 00:18:22,950 --> 00:18:21,840 at acs for example we are hardware and 341 00:18:26,070 --> 00:18:22,960 software constrained 342 00:18:26,870 --> 00:18:26,080 big time and so there are probably some 343 00:18:28,230 --> 00:18:26,880 things we can do 344 00:18:29,830 --> 00:18:28,240 you know there's always some something 345 00:18:30,950 --> 00:18:29,840 you can do but a lot of it tends to be 346 00:18:36,150 --> 00:18:30,960 non-critical path 347 00:18:40,630 --> 00:18:39,510 we have to go there's some wow lousy 348 00:18:46,630 --> 00:18:40,640 sucks 349 00:18:50,470 --> 00:18:48,310 we've had that objective right from the 350 00:18:52,310 --> 00:18:50,480 start right but if we go out 351 00:18:54,710 --> 00:18:52,320 into the middle of the listing we've 352 00:18:58,150 --> 00:18:54,720 lost that the main objective the main 353 00:19:01,190 --> 00:18:59,190 for those of you haven't been in this 354 00:19:03,110 --> 00:19:01,200 process before that ray knows well you 355 00:19:05,270 --> 00:19:03,120 don't put a system like this on a major 356 00:19:07,029 --> 00:19:05,280 spacecraft like this at the last moment 357 00:19:08,470 --> 00:19:07,039 this is there's this tension that exists 358 00:19:12,870 --> 00:19:08,480 between the engineering team 359 00:19:15,990 --> 00:19:12,880 and the scientists the engineers want 360 00:19:17,669 --> 00:19:16,000 success in order to assure success they 361 00:19:20,470 --> 00:19:17,679 have to be very conservative people 362 00:19:22,150 --> 00:19:20,480 yeah the landing system is very fragile 363 00:19:22,950 --> 00:19:22,160 in the presence of sustained winds that 364 00:19:25,510 --> 00:19:22,960 if 365 00:19:27,510 --> 00:19:25,520 sustained winds go above a certain level 366 00:19:30,150 --> 00:19:27,520 that the landing system the airbags 367 00:19:31,750 --> 00:19:30,160 cannot do the job and so that's another 368 00:19:32,630 --> 00:19:31,760 point that says that even if you don't 369 00:19:34,470 --> 00:19:32,640 believe the models 370 00:19:36,630 --> 00:19:34,480 you better be wary of what they're 371 00:19:39,110 --> 00:19:36,640 saying and that and that actually 372 00:19:41,270 --> 00:19:39,120 changes the site selection criteria 373 00:19:44,070 --> 00:19:41,280 that's the bottom line that's right 374 00:19:45,350 --> 00:19:44,080 you're seeing a much greater concern 375 00:19:48,310 --> 00:19:45,360 over wins than 376 00:19:50,950 --> 00:19:48,320 we even considered going in but the way 377 00:19:52,390 --> 00:19:50,960 we started this was you have to certify 378 00:19:55,430 --> 00:19:52,400 the site is safe 379 00:19:59,990 --> 00:19:58,310 so i don't think that the project will 380 00:20:01,350 --> 00:20:00,000 not recommend that we land in an unsafe 381 00:20:03,190 --> 00:20:01,360 site 382 00:20:16,470 --> 00:20:03,200 you know regardless of the science 383 00:20:20,070 --> 00:20:17,990 you could probably imagine two partially 384 00:20:21,830 --> 00:20:20,080 ordered sets one from the scientific 385 00:20:23,590 --> 00:20:21,840 point of view these are all great these 386 00:20:23,909 --> 00:20:23,600 are in between and these are not the 387 00:20:25,909 --> 00:20:23,919 good 388 00:20:27,430 --> 00:20:25,919 and the same thing from engineering and 389 00:20:28,310 --> 00:20:27,440 you can imagine lining those two up side 390 00:20:30,630 --> 00:20:28,320 by side 391 00:20:32,230 --> 00:20:30,640 and then trying to decide whether or not 392 00:20:33,909 --> 00:20:32,240 to exist to the site that was not 393 00:20:34,310 --> 00:20:33,919 unacceptable from either point of view 394 00:20:36,789 --> 00:20:34,320 right 395 00:20:39,590 --> 00:20:36,799 and this was done during pathfinder and 396 00:20:42,070 --> 00:20:39,600 the gentry was there in the very end 397 00:20:42,870 --> 00:20:42,080 myrrh is more complex because there were 398 00:20:45,190 --> 00:20:42,880 so many more 399 00:20:45,909 --> 00:20:45,200 data sets that you could throw at the 400 00:20:48,149 --> 00:20:45,919 problem 401 00:20:50,230 --> 00:20:48,159 we have two orbiters that are going 402 00:20:52,710 --> 00:20:50,240 around mars that we can direct to take 403 00:20:54,630 --> 00:20:52,720 pictures at target locations 404 00:20:57,190 --> 00:20:54,640 so now it's much more involved you're 405 00:20:58,950 --> 00:20:57,200 actually acquiring the information 406 00:21:00,710 --> 00:20:58,960 while you're in the decision-making 407 00:21:02,630 --> 00:21:00,720 process while you're building the 408 00:21:04,950 --> 00:21:02,640 spacecraft while you're worried about 409 00:21:06,950 --> 00:21:04,960 what the spacecraft can actually do 410 00:21:08,230 --> 00:21:06,960 and what sort of site it can and can't 411 00:21:11,669 --> 00:21:08,240 land at 412 00:21:14,390 --> 00:21:11,679 excuse me i i in terms of 413 00:21:15,510 --> 00:21:14,400 distant views and relief clearly there's 414 00:21:18,390 --> 00:21:15,520 an issue here but 415 00:21:20,630 --> 00:21:18,400 what that hematite looks deposit looks 416 00:21:21,750 --> 00:21:20,640 like on a centimeter to 10 centimeter to 417 00:21:23,590 --> 00:21:21,760 meter scale 418 00:21:25,669 --> 00:21:23,600 nobody in this room knows it could be 419 00:21:29,990 --> 00:21:25,679 wild it could be weird 420 00:21:31,270 --> 00:21:30,000 it could be very very strange-looking 421 00:21:33,669 --> 00:21:31,280 and let me just follow that up 422 00:21:35,270 --> 00:21:33,679 pathfinder was just as dull and boring 423 00:21:36,950 --> 00:21:35,280 from an orbital point of view and we 424 00:21:38,870 --> 00:21:36,960 landed there were some hills there that 425 00:21:40,549 --> 00:21:38,880 people got pretty excited about 426 00:21:42,789 --> 00:21:40,559 uncertainty on this category matt might 427 00:21:46,630 --> 00:21:42,799 rival the uncertainty on the winds 428 00:21:51,430 --> 00:21:46,640 how could that be scientists trying to 429 00:21:56,230 --> 00:21:53,430 i i think you can explain this one to 430 00:22:00,070 --> 00:21:58,230 oh man if i explain pathfinders in 431 00:22:01,029 --> 00:22:00,080 public i can explain hematite to the 432 00:22:09,750 --> 00:22:01,039 public 433 00:22:13,270 --> 00:22:11,990 we have a landing site where that 434 00:22:16,710 --> 00:22:13,280 category is not 435 00:22:19,669 --> 00:22:16,720 green i think we have a real problem yes 436 00:22:20,390 --> 00:22:19,679 so but remember the dynamic range is 437 00:22:22,950 --> 00:22:20,400 going to get open 438 00:22:24,630 --> 00:22:22,960 there may be some that have reds here 439 00:22:26,470 --> 00:22:24,640 the question i'm having is what is the 440 00:22:28,470 --> 00:22:26,480 meaning of that road and what is the 441 00:22:30,149 --> 00:22:28,480 meaning of good diversity 442 00:22:31,430 --> 00:22:30,159 because you can have so much diversity 443 00:22:33,029 --> 00:22:31,440 that you don't know what the hell you're 444 00:22:36,390 --> 00:22:33,039 doing 445 00:22:43,270 --> 00:22:36,400 let's go on let's leave it and see if it 446 00:22:43,280 --> 00:23:02,549 who thought this up 447 00:23:08,070 --> 00:23:05,190 arthur can you find one more person we 448 00:23:10,789 --> 00:23:08,080 need another person for this game 449 00:23:12,149 --> 00:23:10,799 they lost one so the beginning of june 450 00:23:15,750 --> 00:23:12,159 of 2002 451 00:23:17,990 --> 00:23:15,760 the year before launch picnic we are 51 452 00:23:19,830 --> 00:23:18,000 weeks from launch 453 00:23:21,270 --> 00:23:19,840 last week the team went out and had a 454 00:23:26,710 --> 00:23:21,280 good lunch time and played a little 455 00:23:32,549 --> 00:23:28,950 the schedule is the big concern on this 456 00:23:36,470 --> 00:23:34,470 you know i tell my people that in terms 457 00:23:38,070 --> 00:23:36,480 of my top 10 list of worries 458 00:23:39,510 --> 00:23:38,080 the first three are scheduled schedule 459 00:23:42,630 --> 00:23:39,520 and schedule and there's nothing in 460 00:23:45,750 --> 00:23:43,990 that's just very very tight for a 461 00:23:47,110 --> 00:23:45,760 mission of this kind of complexity and 462 00:23:50,630 --> 00:23:47,120 we've been fighting that 463 00:23:52,789 --> 00:23:50,640 challenge basically since the beginning 464 00:23:54,070 --> 00:23:52,799 so the pressure now is on getting the 465 00:23:55,590 --> 00:23:54,080 flight equipment together 466 00:23:57,750 --> 00:23:55,600 through the assembly test and launch 467 00:23:58,710 --> 00:23:57,760 operations phase in order to get ready 468 00:24:05,590 --> 00:23:58,720 to go to florida 469 00:24:07,990 --> 00:24:05,600 in march of 2003 470 00:24:09,830 --> 00:24:08,000 the schedule situation has forced us to 471 00:24:11,590 --> 00:24:09,840 expend money at a greater rate than we 472 00:24:13,269 --> 00:24:11,600 expected so we've had to go back to nasa 473 00:24:13,990 --> 00:24:13,279 headquarters and ask for an infusions of 474 00:24:15,590 --> 00:24:14,000 funds 475 00:24:17,269 --> 00:24:15,600 they've been extremely supportive of our 476 00:24:18,630 --> 00:24:17,279 requests and we've gotten everything 477 00:24:20,310 --> 00:24:18,640 we've asked for 478 00:24:21,990 --> 00:24:20,320 [Music] 479 00:24:24,070 --> 00:24:22,000 but in going through that process you 480 00:24:25,750 --> 00:24:24,080 worry about have i got the right plan do 481 00:24:28,630 --> 00:24:25,760 i really have it figured out 482 00:24:30,630 --> 00:24:28,640 are we on track can we stay on track my 483 00:24:31,510 --> 00:24:30,640 job is to make sure that the rest of the 484 00:24:33,830 --> 00:24:31,520 team 485 00:24:34,549 --> 00:24:33,840 a very high caliber very motivated group 486 00:24:38,310 --> 00:24:34,559 of people 487 00:24:40,390 --> 00:24:38,320 can get their job done so my job is to 488 00:24:44,830 --> 00:24:40,400 get the stuff that gets in their way out 489 00:24:44,840 --> 00:24:53,470 running 490 00:24:53,480 --> 00:25:12,830 [Music] 491 00:25:20,230 --> 00:25:14,230 so 492 00:25:20,240 --> 00:25:30,870 what's your opinion if we uh 493 00:25:36,710 --> 00:25:33,750 i think since this is the zero degree um 494 00:25:38,789 --> 00:25:36,720 it's probably worth doing 495 00:25:40,230 --> 00:25:38,799 so i i've got your concurrence that it 496 00:25:43,510 --> 00:25:40,240 will count as a test 497 00:25:47,350 --> 00:25:44,950 are you questioning whether you're going 498 00:25:49,590 --> 00:25:47,360 to get air data boom data 499 00:25:51,669 --> 00:25:49,600 uh the pilot indicates that we have a 500 00:25:53,590 --> 00:25:51,679 very high probability in these gusty 501 00:25:54,789 --> 00:25:53,600 conditions that we will smash the air 502 00:26:19,590 --> 00:25:54,799 downfall 503 00:26:33,350 --> 00:26:22,830 i'm i'm really amazed at the amount of 504 00:26:33,360 --> 00:26:44,630 look at it 505 00:26:53,830 --> 00:26:47,909 look at that that 506 00:26:57,190 --> 00:26:53,840 is that's blended 507 00:26:57,200 --> 00:27:27,190 awesome oh that's fantastic 508 00:27:30,710 --> 00:27:28,710 well here's here's the thing too if 509 00:27:32,470 --> 00:27:30,720 let's say let's say this one hits 510 00:27:33,990 --> 00:27:32,480 and it's a good test we quickly found 511 00:27:38,870 --> 00:27:34,000 out that we weren't testing them the way 512 00:27:42,789 --> 00:27:40,310 i think in the back of your mind you're 513 00:27:45,110 --> 00:27:42,799 always prepared for anything to happen 514 00:27:55,750 --> 00:27:45,120 but this wasn't one of the places that 515 00:28:02,389 --> 00:27:59,029 we went back in mid-june 516 00:28:15,110 --> 00:28:02,399 and had the very dramatic 517 00:28:28,830 --> 00:28:18,710 count and failures five 518 00:28:28,840 --> 00:28:39,430 one 519 00:28:39,440 --> 00:28:54,950 it was it was slightly devastating 520 00:29:01,190 --> 00:28:59,830 significant severe shoot damage 521 00:29:03,029 --> 00:29:01,200 well the political spin on this is 522 00:29:05,110 --> 00:29:03,039 pretty easy because this chute 523 00:29:06,630 --> 00:29:05,120 did not have any of the reinforcements 524 00:29:09,669 --> 00:29:06,640 that we put in to stop 525 00:29:10,630 --> 00:29:09,679 just these very kinds of failures these 526 00:29:13,110 --> 00:29:10,640 kinds of failures 527 00:29:13,750 --> 00:29:13,120 are not surprising and that's why we 528 00:29:15,990 --> 00:29:13,760 chose to use 529 00:29:18,789 --> 00:29:16,000 you got to remember these soft good 530 00:29:21,590 --> 00:29:18,799 systems like parachutes or air bags 531 00:29:23,510 --> 00:29:21,600 they are not readily amenable to 532 00:29:25,430 --> 00:29:23,520 analysis 533 00:29:26,789 --> 00:29:25,440 the inflation of a parachute is actually 534 00:29:30,230 --> 00:29:26,799 a chaotic event 535 00:29:31,830 --> 00:29:30,240 it's a non-linear dynamic event highly 536 00:29:33,430 --> 00:29:31,840 driven by the initial conditions of the 537 00:29:36,070 --> 00:29:33,440 inflation in that regard 538 00:29:37,350 --> 00:29:36,080 i i'm not surprised or disheartened at 539 00:29:39,909 --> 00:29:37,360 all by this 540 00:30:06,830 --> 00:29:39,919 i need to get the right spin on this so 541 00:30:06,840 --> 00:30:11,190 oh 542 00:30:18,950 --> 00:30:16,149 that was of a nature that just makes you 543 00:30:21,110 --> 00:30:18,960 you're taken aback it even takes a day 544 00:30:27,909 --> 00:30:21,120 or two to absorb the magnitude of what 545 00:30:31,430 --> 00:30:29,750 that was rough first of all you have to 546 00:30:32,630 --> 00:30:31,440 figure out why you have a failure 547 00:30:34,789 --> 00:30:32,640 you have to figure out what your 548 00:30:35,830 --> 00:30:34,799 possible fixes are and you don't have 549 00:30:37,990 --> 00:30:35,840 the schedule to 550 00:30:42,230 --> 00:30:38,000 investigate this in a more methodical 551 00:30:49,510 --> 00:30:45,909 so we have to change our thinking 552 00:30:51,590 --> 00:30:49,520 on most likely the love and 553 00:30:52,630 --> 00:30:51,600 it didn't look like there was a it 554 00:30:54,710 --> 00:30:52,640 looked like there was a 555 00:30:56,070 --> 00:30:54,720 several different types of failure there 556 00:30:57,750 --> 00:30:56,080 at least to me uh 557 00:30:58,710 --> 00:30:57,760 to me it looked like it was yeah but 558 00:30:59,590 --> 00:30:58,720 again i'm looking through a little 559 00:31:05,190 --> 00:30:59,600 camera screen 560 00:31:16,789 --> 00:31:05,200 well even i mean it just you know 561 00:31:23,509 --> 00:31:20,070 coming to you dennis this cone's for you 562 00:31:24,870 --> 00:31:23,519 it's coming to you the fact that uh the 563 00:31:27,350 --> 00:31:24,880 parachute exploded 564 00:31:29,110 --> 00:31:27,360 not a good thing well yeah i'd rather 565 00:31:32,070 --> 00:31:29,120 have it happen here than 566 00:31:33,350 --> 00:31:32,080 mars yeah that's right unfortunately 567 00:31:35,110 --> 00:31:33,360 strictly speaking 568 00:31:36,549 --> 00:31:35,120 that shoot that just exploded was the 569 00:31:39,430 --> 00:31:36,559 shoot that we were planning on taking to 570 00:31:43,909 --> 00:31:42,389 complete structural failures repeated 571 00:31:45,110 --> 00:31:43,919 complete structural failures of the 572 00:31:49,190 --> 00:31:45,120 parachute 573 00:31:53,269 --> 00:31:49,200 and that was extremely distressful 574 00:31:54,710 --> 00:31:53,279 i mean that is a sense of panic 575 00:32:05,509 --> 00:31:54,720 like oh my god what are you gonna do 576 00:32:09,590 --> 00:32:08,070 the chute failed in the correct loads 577 00:32:11,190 --> 00:32:09,600 that tells us that we have a parachute 578 00:32:14,470 --> 00:32:11,200 that's not 579 00:32:15,750 --> 00:32:14,480 up to the job we need it to do because 580 00:32:18,389 --> 00:32:15,760 we have packed 581 00:32:20,310 --> 00:32:18,399 as much parachute as we can into the 582 00:32:22,310 --> 00:32:20,320 volume that's available to us 583 00:32:23,909 --> 00:32:22,320 our only recourse in making the 584 00:32:25,990 --> 00:32:23,919 parachute stronger 585 00:32:27,590 --> 00:32:26,000 is to change the configuration and 586 00:32:29,590 --> 00:32:27,600 reduce the band 587 00:32:31,190 --> 00:32:29,600 length the way you make it stronger is 588 00:32:34,389 --> 00:32:31,200 you put maybe other webbing 589 00:32:36,950 --> 00:32:34,399 or reinforcements or thicker fabric 590 00:32:38,149 --> 00:32:36,960 the net result is that you need more 591 00:32:41,669 --> 00:32:38,159 volume to pack that 592 00:32:44,710 --> 00:32:41,679 fabric in we don't have any more volume 593 00:32:47,750 --> 00:32:44,720 it's going to require people to be 594 00:32:51,750 --> 00:32:47,760 brave especially managers 595 00:32:53,990 --> 00:32:51,760 to be brave because the certainty 596 00:32:54,950 --> 00:32:54,000 that we have the job done is going to 597 00:32:56,149 --> 00:32:54,960 come very late 598 00:32:58,549 --> 00:32:56,159 and that's going to make everybody 599 00:33:00,549 --> 00:32:58,559 nervous our next pass through this if it 600 00:33:04,890 --> 00:33:00,559 doesn't come together 601 00:33:10,360 --> 00:33:08,830 [Music] 602 00:33:15,350 --> 00:33:10,370 over 603 00:33:17,269 --> 00:33:15,360 [Music] 604 00:33:18,710 --> 00:33:17,279 about a month ago we began assembly test 605 00:33:20,710 --> 00:33:18,720 and launch operations 606 00:33:23,190 --> 00:33:20,720 when the first part of the flight units 607 00:33:24,950 --> 00:33:23,200 are or in our case engineering models 608 00:33:26,630 --> 00:33:24,960 are beginning to be integrated in the 609 00:33:27,830 --> 00:33:26,640 assembly facility where the spacecraft 610 00:33:29,830 --> 00:33:27,840 goes together 611 00:33:31,350 --> 00:33:29,840 that's a big deal because it indicates 612 00:33:33,350 --> 00:33:31,360 that you're now 613 00:33:34,789 --> 00:33:33,360 have completed enough fabrication that 614 00:33:36,950 --> 00:33:34,799 you can begin the test phase 615 00:33:40,070 --> 00:33:36,960 and begin to understand what it is we 616 00:33:42,389 --> 00:33:40,080 really have designed and built 617 00:33:43,669 --> 00:33:42,399 and where did we build it a certain way 618 00:33:45,669 --> 00:33:43,679 and it behaves in a way that's 619 00:33:47,430 --> 00:33:45,679 unexpected and to fix those problems so 620 00:33:49,830 --> 00:33:47,440 that at the end of that test period 621 00:33:51,029 --> 00:33:49,840 we know exactly what the article will do 622 00:33:52,950 --> 00:33:51,039 so we can send it to mars with 623 00:33:55,430 --> 00:33:52,960 confidence 624 00:33:57,110 --> 00:33:55,440 we are doing two shifts per day we 625 00:33:59,909 --> 00:33:57,120 started that from the very beginning 626 00:34:02,070 --> 00:33:59,919 we knew it would be a a challenge but i 627 00:34:04,789 --> 00:34:02,080 don't think we adequately assessed 628 00:34:06,250 --> 00:34:04,799 how difficult it would be i think that's 629 00:34:08,550 --> 00:34:06,260 been the biggest surprise 630 00:34:10,950 --> 00:34:08,560 [Music] 631 00:34:13,190 --> 00:34:10,960 the trouble is it's great on paper but 632 00:34:16,389 --> 00:34:13,200 until you put it out there and test it 633 00:34:19,109 --> 00:34:16,399 you really don't know what you have 634 00:34:20,230 --> 00:34:19,119 so our electronics are failing at our 635 00:34:22,310 --> 00:34:20,240 vibration tests 636 00:34:23,589 --> 00:34:22,320 sometimes we find it's a real problem in 637 00:34:42,570 --> 00:34:23,599 other cases we realize there's nothing 638 00:34:42,580 --> 00:34:58,710 [Music] 639 00:34:58,720 --> 00:35:09,349 clear this off 640 00:35:13,589 --> 00:35:12,950 there's two camps of assembling and 641 00:35:16,870 --> 00:35:13,599 testing 642 00:35:19,430 --> 00:35:16,880 the rovers and the spacecraft as a whole 643 00:35:19,910 --> 00:35:19,440 the assembly test and launch operations 644 00:35:21,589 --> 00:35:19,920 team 645 00:35:23,030 --> 00:35:21,599 is assembling the flight hardware the 646 00:35:24,630 --> 00:35:23,040 stuff that's actually going to go to 647 00:35:27,349 --> 00:35:24,640 mars 648 00:35:28,630 --> 00:35:27,359 our area the integration and test area 649 00:35:31,270 --> 00:35:28,640 has our own lab 650 00:35:32,630 --> 00:35:31,280 which is a clean room and a sandbox 651 00:35:35,670 --> 00:35:32,640 where we have rovers that we 652 00:35:37,829 --> 00:35:35,680 test in the dirt so we receive 653 00:35:39,990 --> 00:35:37,839 one set of electronics the brains of the 654 00:35:42,790 --> 00:35:40,000 spacecraft 655 00:35:44,790 --> 00:35:42,800 then we plug in to each connector and 656 00:35:45,990 --> 00:35:44,800 make sure that each connector works and 657 00:35:48,390 --> 00:35:46,000 we start 658 00:35:49,270 --> 00:35:48,400 slowly building up a spacecraft on a 659 00:35:51,109 --> 00:35:49,280 tabletop 660 00:35:52,630 --> 00:35:51,119 configuration where then the flight 661 00:35:54,710 --> 00:35:52,640 software team can 662 00:35:56,310 --> 00:35:54,720 come in and develop the the software 663 00:35:57,430 --> 00:35:56,320 that they need to operate each of the 664 00:36:00,150 --> 00:35:57,440 devices 665 00:36:01,829 --> 00:36:00,160 and then the as part of the test team we 666 00:36:02,710 --> 00:36:01,839 start doing higher level functional 667 00:36:04,069 --> 00:36:02,720 tests 668 00:36:05,910 --> 00:36:04,079 the other one would verify that we 669 00:36:09,910 --> 00:36:05,920 didn't have a short 670 00:36:12,150 --> 00:36:09,920 chat i like to think my job was kind of 671 00:36:15,349 --> 00:36:12,160 like working in the garage 672 00:36:17,510 --> 00:36:15,359 it was a lot of hands-on knowing how the 673 00:36:19,270 --> 00:36:17,520 vehicle operated or how the vehicle was 674 00:36:20,710 --> 00:36:19,280 put together 675 00:36:22,870 --> 00:36:20,720 you're trying to balance all these 676 00:36:24,550 --> 00:36:22,880 different groups people want to use the 677 00:36:25,190 --> 00:36:24,560 arm people want to use the mast and 678 00:36:26,390 --> 00:36:25,200 image 679 00:36:29,190 --> 00:36:26,400 people want to use both of those 680 00:36:32,310 --> 00:36:29,200 together at the same time we're 681 00:36:35,349 --> 00:36:32,320 testing in our lab they're putting these 682 00:36:37,349 --> 00:36:35,359 the real pieces together 683 00:36:39,430 --> 00:36:37,359 it was a lot i mean it was a lot of time 684 00:36:41,430 --> 00:36:39,440 it was three shifts around the clock 685 00:36:43,190 --> 00:36:41,440 every weekend and there was always 686 00:36:43,750 --> 00:36:43,200 somebody in the lab just because things 687 00:36:45,910 --> 00:36:43,760 weren't 688 00:36:47,349 --> 00:36:45,920 ready yet for us to start testing and 689 00:37:06,829 --> 00:36:47,359 your job is just to make sure that 690 00:37:06,839 --> 00:37:20,870 is 691 00:37:20,880 --> 00:37:35,940 i look at my tie please 692 00:37:35,950 --> 00:37:51,870 [Applause] 693 00:37:56,790 --> 00:37:54,790 [Laughter] 694 00:37:57,829 --> 00:37:56,800 if you get a gust of wind the system 695 00:37:59,990 --> 00:37:57,839 starts to oscillate 696 00:38:02,390 --> 00:38:00,000 and when you fire your retro rockets you 697 00:38:04,230 --> 00:38:02,400 might impart an horizontal velocity so 698 00:38:06,630 --> 00:38:04,240 you might touch down with a very gentle 699 00:38:09,670 --> 00:38:06,640 vertical velocity but you might be going 700 00:38:11,829 --> 00:38:09,680 30 meters per second horizontally 701 00:38:13,349 --> 00:38:11,839 when we do statistical analysis of that 702 00:38:15,030 --> 00:38:13,359 problem for mer it came out that the 703 00:38:17,910 --> 00:38:15,040 probability of failure 704 00:38:37,270 --> 00:38:17,920 was unacceptable so we need to come up 705 00:38:40,230 --> 00:38:38,630 if you put a camera and you take two 706 00:38:42,390 --> 00:38:40,240 pictures and then you can look at the 707 00:38:43,990 --> 00:38:42,400 displacement 708 00:38:45,829 --> 00:38:44,000 in the two pictures how much you moved 709 00:38:47,270 --> 00:38:45,839 and you divided by the amount of time 710 00:38:47,910 --> 00:38:47,280 between the two images you can figure 711 00:38:50,230 --> 00:38:47,920 out how much 712 00:38:51,190 --> 00:38:50,240 what's your velocity you know the loss 713 00:38:54,310 --> 00:38:51,200 of fixes 714 00:39:07,240 --> 00:38:54,320 you know where were good to us hey this 715 00:39:07,250 --> 00:39:15,109 [Music] 716 00:39:19,349 --> 00:39:18,310 we are doing what is our most recent and 717 00:39:23,270 --> 00:39:19,359 possibly our last 718 00:39:23,990 --> 00:39:23,280 actually test taking the fido rover out 719 00:39:26,829 --> 00:39:24,000 to some 720 00:39:28,710 --> 00:39:26,839 mysterious field site we do not know 721 00:39:31,270 --> 00:39:28,720 where 722 00:39:32,790 --> 00:39:31,280 and it's a fantastic site it's an 723 00:39:34,950 --> 00:39:32,800 absolutely wonderful landing site 724 00:39:36,150 --> 00:39:34,960 it's got terrific geology and best of 725 00:39:37,670 --> 00:39:36,160 all there aren't any bushes 726 00:39:39,349 --> 00:39:37,680 because this rover doesn't like bushes 727 00:39:40,630 --> 00:39:39,359 it's good with dirt it's good with rocks 728 00:39:42,069 --> 00:39:40,640 it's terrible with bushes because it's 729 00:39:42,790 --> 00:39:42,079 designed for mars where there aren't any 730 00:39:44,150 --> 00:39:42,800 bushes 731 00:39:45,750 --> 00:39:44,160 or where at least it would be a real 732 00:39:47,589 --> 00:39:45,760 discover if we found one we're going to 733 00:39:49,589 --> 00:39:47,599 come up with more than you can possibly 734 00:39:52,150 --> 00:39:49,599 execute on a drive saw 735 00:39:53,670 --> 00:39:52,160 okay what will happen is if we get in 736 00:39:55,750 --> 00:39:53,680 there and we find out on the basis of 737 00:39:57,670 --> 00:39:55,760 uhf data that we can do remote sensing 738 00:39:58,310 --> 00:39:57,680 but we can't do idd then i'll try to get 739 00:40:00,950 --> 00:39:58,320 the full set 740 00:40:02,150 --> 00:40:00,960 point of this test is to train the 741 00:40:05,910 --> 00:40:02,160 science team 742 00:40:09,510 --> 00:40:05,920 and how to do field geology with a robot 743 00:40:11,990 --> 00:40:09,520 that is somewhere else and 744 00:40:13,030 --> 00:40:12,000 using it to simulate the kind of science 745 00:40:14,390 --> 00:40:13,040 that we're going to do 746 00:40:20,630 --> 00:40:14,400 on the martian surface with the mer 747 00:40:25,190 --> 00:40:23,109 i don't know where we are in terms of 748 00:40:26,309 --> 00:40:25,200 latitude and longitude and what state of 749 00:40:27,109 --> 00:40:26,319 the united states we're in but that 750 00:40:29,430 --> 00:40:27,119 doesn't matter 751 00:40:30,230 --> 00:40:29,440 what we do know now is we know where we 752 00:40:33,349 --> 00:40:30,240 are in 753 00:40:36,230 --> 00:40:33,359 some synthetic orbital images we've got 754 00:40:38,150 --> 00:40:36,240 images taken from overhead that simulate 755 00:40:38,950 --> 00:40:38,160 the kind of data that we'll have from 756 00:40:41,589 --> 00:40:38,960 ours 757 00:40:42,630 --> 00:40:41,599 the sowg meeting will begin in here 758 00:40:45,270 --> 00:40:42,640 promptly 759 00:40:47,190 --> 00:40:45,280 at 8 15. so at 8 15 i want everybody in 760 00:40:48,230 --> 00:40:47,200 their seats in this room quiet ready to 761 00:40:50,309 --> 00:40:48,240 go 762 00:40:51,750 --> 00:40:50,319 which rock we choose will be influenced 763 00:40:53,270 --> 00:40:51,760 not just by the geology 764 00:40:55,349 --> 00:40:53,280 but also by where we're going to go 765 00:40:57,109 --> 00:40:55,359 after that that's not something comes 766 00:40:59,190 --> 00:40:57,119 naturally to a field geologist 767 00:41:01,270 --> 00:40:59,200 we got to stay real focused on the task 768 00:41:01,829 --> 00:41:01,280 at hand which is doing the best job that 769 00:41:04,390 --> 00:41:01,839 we can 770 00:41:07,670 --> 00:41:04,400 for 10 days of really simulating the 771 00:41:09,990 --> 00:41:07,680 science that we're going to do on mars 772 00:41:10,790 --> 00:41:10,000 geology yeah yeah i know you guys love 773 00:41:12,150 --> 00:41:10,800 the pancake 774 00:41:13,349 --> 00:41:12,160 excuse me could i have attention for a 775 00:41:14,470 --> 00:41:13,359 moment yeah i know you guys love the 776 00:41:15,670 --> 00:41:14,480 hand cam panorama 777 00:41:17,430 --> 00:41:15,680 don't forget one thing you've really got 778 00:41:18,950 --> 00:41:17,440 to focus on is what the next style is 779 00:41:19,990 --> 00:41:18,960 going to be so be looking at the current 780 00:41:21,510 --> 00:41:20,000 location 781 00:41:23,190 --> 00:41:21,520 front has cam so you know what's in your 782 00:41:25,910 --> 00:41:23,200 work life okay all right 783 00:41:27,990 --> 00:41:25,920 good uh we have a western green floor i 784 00:41:30,470 --> 00:41:28,000 probably want to get this thing here 785 00:41:32,230 --> 00:41:30,480 say hey folks anybody's got questions 786 00:41:34,550 --> 00:41:32,240 issues on how to do naming 787 00:42:08,390 --> 00:41:34,560 of things roxanna wales here is our 788 00:42:13,750 --> 00:42:11,990 but so 17 18 19 three days of testing 789 00:42:17,990 --> 00:42:13,760 if we really knock them out like the two 790 00:42:22,630 --> 00:42:21,030 maybe make wasty right 791 00:42:25,510 --> 00:42:22,640 okay i mean that's just the only concern 792 00:42:27,109 --> 00:42:25,520 is that okay so the other scenario is 793 00:42:30,150 --> 00:42:27,119 then you start asking what is it even 794 00:42:33,670 --> 00:42:30,160 getting one or two of them 795 00:42:36,870 --> 00:42:33,680 it is it's worth look if 1.6 796 00:42:40,150 --> 00:42:36,880 fails that's huge and we have 797 00:42:46,390 --> 00:42:40,160 three mortars okay 798 00:42:51,510 --> 00:42:48,550 lay the parachute out like this and 799 00:42:54,710 --> 00:42:51,520 we're simply going to be relying on 800 00:42:57,349 --> 00:42:54,720 the friction with the floor 801 00:42:59,990 --> 00:42:57,359 to keep it from sucking the lines into 802 00:43:01,589 --> 00:43:00,000 the death zone 803 00:43:03,829 --> 00:43:01,599 the way i'd like is to make it to full 804 00:43:05,430 --> 00:43:03,839 inflation at center of the 805 00:43:07,030 --> 00:43:05,440 thing you just gotta but you gotta just 806 00:43:08,710 --> 00:43:07,040 you can't hit the top of the wall 807 00:43:10,829 --> 00:43:08,720 so you gotta stay safely off the top of 808 00:43:34,980 --> 00:43:10,839 the wall and that's it you go that high 809 00:43:38,470 --> 00:43:35,460 [Music] 810 00:43:45,589 --> 00:43:38,480 [Applause] 811 00:43:54,069 --> 00:43:49,829 come on come on what is that 812 00:43:59,990 --> 00:43:54,079 what is that what 813 00:44:13,030 --> 00:44:01,349 i don't know what it is what do you 814 00:44:18,950 --> 00:44:17,750 we are uh mobilizing or scrambling all 815 00:44:22,309 --> 00:44:18,960 forces 816 00:44:25,589 --> 00:44:22,319 to have a discussion at 12 p.m 817 00:44:30,470 --> 00:44:25,599 pacific on this subject 818 00:44:34,150 --> 00:44:30,480 what am i breaking up 819 00:44:37,990 --> 00:44:34,160 at any rate um yeah but 820 00:44:41,670 --> 00:44:38,000 it is a um it may be a function 821 00:44:57,030 --> 00:44:41,680 of the geometric porosity 822 00:45:01,670 --> 00:44:59,990 richard it's uh robin and tracin and 823 00:45:07,910 --> 00:45:01,680 adam and wayne is talking to 824 00:45:11,670 --> 00:45:09,670 this is not anything that was seen 825 00:45:16,230 --> 00:45:11,680 during pathfinder 826 00:45:18,150 --> 00:45:16,240 or thus far during mer's development 827 00:45:19,430 --> 00:45:18,160 just as a general policy clamp down on 828 00:45:21,910 --> 00:45:19,440 the information until 829 00:45:22,870 --> 00:45:21,920 until robin and i have had a chance to 830 00:45:33,030 --> 00:45:22,880 release 831 00:45:35,589 --> 00:45:33,040 the emails you receive yeah okay 832 00:45:36,309 --> 00:45:35,599 that's how information about this drop 833 00:45:39,270 --> 00:45:36,319 goes out 834 00:45:39,910 --> 00:45:39,280 first because i found with the airbag 835 00:45:41,910 --> 00:45:39,920 drops 836 00:45:43,670 --> 00:45:41,920 that if you make a telephone call 837 00:45:45,270 --> 00:45:43,680 somebody tells somebody else and they 838 00:45:46,230 --> 00:45:45,280 play the telephone game and by the time 839 00:45:47,829 --> 00:45:46,240 it makes it to 840 00:45:49,430 --> 00:45:47,839 up the food chain all the good words 841 00:45:50,630 --> 00:45:49,440 have been lost and only the bad words 842 00:45:52,950 --> 00:45:50,640 have remained 843 00:45:53,910 --> 00:45:52,960 but this allows you to inform your 844 00:45:55,829 --> 00:45:53,920 management before 845 00:45:57,430 --> 00:45:55,839 it gets through the grapevine yeah 846 00:46:07,270 --> 00:45:57,440 wouldn't you like to tell pete before 847 00:46:11,750 --> 00:46:10,390 that's right okay okay because number 848 00:46:37,190 --> 00:46:11,760 one i'd like to come up i mean i think 849 00:46:45,510 --> 00:46:43,190 two one fire 850 00:46:47,030 --> 00:46:45,520 there it goes look at that beautiful 851 00:46:54,790 --> 00:46:47,040 beautiful 852 00:46:54,800 --> 00:46:59,670 big that is awesome 853 00:47:03,910 --> 00:47:02,069 that was perfect that's center of the 854 00:47:05,109 --> 00:47:03,920 thing everything everything awesome 855 00:47:07,910 --> 00:47:05,119 awesome awesome 856 00:47:08,390 --> 00:47:07,920 oh that's so good yeah this is totally 857 00:47:12,069 --> 00:47:08,400 cool 858 00:47:29,829 --> 00:47:12,079 great huh we are so stoked 859 00:47:36,829 --> 00:47:33,430 ten nine eight 860 00:47:40,470 --> 00:47:36,839 seven six 861 00:47:52,950 --> 00:47:40,480 five four three 862 00:48:15,910 --> 00:47:52,960 two one pull five 863 00:48:28,549 --> 00:48:19,829 can we pull the transition through no 864 00:48:32,710 --> 00:48:30,230 as soon as the transition got to the 865 00:48:34,630 --> 00:48:32,720 first roller this broke 866 00:48:36,230 --> 00:48:34,640 probably a spiking load due to the fact 867 00:48:37,190 --> 00:48:36,240 of trying to push all that extra around 868 00:48:42,549 --> 00:48:37,200 that color 869 00:48:42,559 --> 00:48:47,589 i hope they do 870 00:48:54,309 --> 00:48:51,270 hey babe how are you 871 00:48:56,549 --> 00:48:54,319 oh really oh no 872 00:48:58,230 --> 00:48:56,559 things are going couldn't be going any 873 00:49:01,190 --> 00:48:58,240 worse 874 00:49:03,109 --> 00:49:01,200 yeah oh no no not that's not clear we're 875 00:49:04,790 --> 00:49:03,119 going to decide the next uh 876 00:49:07,430 --> 00:49:04,800 next half hour here what we're going to 877 00:49:13,030 --> 00:49:07,440 do and i'll call you when i find out 878 00:49:17,750 --> 00:49:16,069 oh oh my little transition joint why 879 00:49:21,510 --> 00:49:17,760 couldn't you have gone a little further 880 00:49:21,520 --> 00:49:25,510 well i made it 881 00:49:33,270 --> 00:49:31,109 transition joy made it 882 00:49:34,549 --> 00:49:33,280 that was 104. we got to get this thing 883 00:49:35,750 --> 00:49:34,559 fixed because this 884 00:49:37,829 --> 00:49:35,760 we don't have a mission without this 885 00:49:38,630 --> 00:49:37,839 device yeah please we we just got to 886 00:49:40,870 --> 00:49:38,640 test some more 887 00:49:41,829 --> 00:49:40,880 you put this on a cd for me and let me 888 00:50:01,430 --> 00:49:41,839 take it home 889 00:50:01,440 --> 00:50:26,420 okay yeah let's do that 890 00:50:26,430 --> 00:50:37,640 [Applause] 891 00:52:19,760 --> 00:50:46,630 [Music] 892 00:52:20,520 --> 00:52:19,770 take a little trip to me 893 00:52:22,650 --> 00:52:20,530 [Applause] 894 00:52:24,480 --> 00:52:22,660 [Music] 895 00:52:38,630 --> 00:52:24,490 [Applause] 896 00:52:38,640 --> 00:52:50,230 let's start moving them out guys okay 897 00:52:50,240 --> 00:52:58,829 [Applause] 898 00:52:58,839 --> 00:53:02,050 wow 899 00:53:05,740 --> 00:53:02,410 [Music] 900 00:53:08,630 --> 00:53:05,750 [Applause] 901 00:53:14,069 --> 00:53:08,640 [Music] 902 00:53:17,190 --> 00:53:14,079 just can't wait to get on the road again 903 00:53:19,109 --> 00:53:17,200 making music with my friends and i can't 904 00:53:21,430 --> 00:53:19,119 wait to get on the road again 905 00:53:28,069 --> 00:53:21,440 oh guys you're on the camera on the road 906 00:53:31,750 --> 00:53:28,079 again top of that pathfinder 907 00:53:44,630 --> 00:53:31,760 seeing things that i may never see again 908 00:53:44,640 --> 00:53:48,309 my last convoy 909 00:53:55,270 --> 00:53:49,589 well we're coming to an end we've been 910 00:53:57,270 --> 00:53:55,280 about 2 425 miles we got another 150 911 00:53:59,109 --> 00:53:57,280 miles or so to go and 912 00:54:00,870 --> 00:53:59,119 we'll be finishing up this particular 913 00:54:05,190 --> 00:54:00,880 wide load convoy 914 00:54:07,589 --> 00:54:05,200 which will be my last convoy over the 915 00:54:09,430 --> 00:54:07,599 41 years i've worked at jpl but it's 916 00:54:11,750 --> 00:54:09,440 been a 917 00:54:13,270 --> 00:54:11,760 quite an experience this is my 19th 918 00:54:15,109 --> 00:54:13,280 mission that i've worked on 919 00:54:16,309 --> 00:54:15,119 of course the role i also used to play 920 00:54:18,470 --> 00:54:16,319 most of the time 921 00:54:20,150 --> 00:54:18,480 was the spacecraft test engineer where i 922 00:54:21,750 --> 00:54:20,160 was actually out on the floor 923 00:54:23,030 --> 00:54:21,760 doing the electrical integration putting 924 00:54:24,069 --> 00:54:23,040 things together and then somehow or 925 00:54:25,990 --> 00:54:24,079 another i 926 00:54:28,549 --> 00:54:26,000 started picking up doing the logistics 927 00:54:31,910 --> 00:54:28,559 part as far as the transportation 928 00:54:33,190 --> 00:54:31,920 my first trip down here not convoy the 929 00:54:38,870 --> 00:54:33,200 project was 930 00:54:40,309 --> 00:54:38,880 ranger six that was of 1962. 931 00:54:43,910 --> 00:54:40,319 things are a lot different down here 932 00:54:50,829 --> 00:54:47,270 it's been a real experience 933 00:54:53,190 --> 00:54:50,839 quite a ride couldn't want it ain't 934 00:54:56,549 --> 00:54:53,200 better 935 00:54:57,990 --> 00:54:56,559 now it's been documented so i don't have 936 00:54:58,950 --> 00:54:58,000 to tell it over and over again i can 937 00:55:03,750 --> 00:54:58,960 show them the video 938 00:55:26,069 --> 00:55:05,190 how about if we pull all the trucks up 939 00:55:26,079 --> 00:55:41,400 rolling here we go 940 00:55:48,240 --> 00:55:46,829 [Music] 941 00:56:05,830 --> 00:55:48,250 oh 942 00:56:24,230 --> 00:56:15,190 [Music] 943 00:56:30,870 --> 00:56:24,240 t minus 10 9 8 7 944 00:56:33,670 --> 00:56:30,880 6 green board 945 00:56:36,150 --> 00:56:33,680 and liftoff of the delta ii rocket 946 00:56:39,750 --> 00:56:36,160 carrying the spirit from earth to planet 947 00:56:56,470 --> 00:56:43,850 load relief is responding 948 00:56:56,480 --> 00:57:03,370 for this 949 00:57:12,900 --> 00:57:10,390 [Music] 950 00:57:15,890 --> 00:57:12,910 nice clean signature there 951 00:58:32,670 --> 00:57:15,900 [Applause] 952 00:58:48,829 --> 00:58:34,829 [Music] 953 00:58:48,839 --> 00:58:54,280 so