1 00:00:09,250 --> 00:00:07,880 I'm Ashley strip and I'm one of the 2 00:00:11,390 --> 00:00:09,260 rover drivers here at the Jet Propulsion 3 00:00:13,850 --> 00:00:11,400 Laboratory and I'm here with the latest 4 00:00:16,220 --> 00:00:13,860 free spirit update this week we're 5 00:00:17,630 --> 00:00:16,230 continuing crab driving testing that 6 00:00:19,580 --> 00:00:17,640 means we're steering the wheels to 7 00:00:21,740 --> 00:00:19,590 different angles and trying to get the 8 00:00:23,689 --> 00:00:21,750 rover to move sideways along the hill 9 00:00:25,279 --> 00:00:23,699 we've done some testing both with 10 00:00:27,380 --> 00:00:25,289 forward crabbing and now we're doing 11 00:00:28,700 --> 00:00:27,390 backward crabbing and we've now got the 12 00:00:30,500 --> 00:00:28,710 wheel steered to several different 13 00:00:32,870 --> 00:00:30,510 angles the test you can see behind me 14 00:00:34,069 --> 00:00:32,880 we've got the wheels all scared to 20 15 00:00:36,560 --> 00:00:34,079 degrees and they're all driving 16 00:00:38,930 --> 00:00:36,570 backwards to try to pull the rover 17 00:00:40,880 --> 00:00:38,940 backward and uphill away from these 18 00:00:43,190 --> 00:00:40,890 potential obstacles that we seem to have 19 00:00:46,069 --> 00:00:43,200 run into in our first attempt to get out 20 00:00:48,080 --> 00:00:46,079 of the sand trap we break each test into 21 00:00:49,880 --> 00:00:48,090 several smaller pieces so that we can 22 00:00:51,979 --> 00:00:49,890 measure the rover's progress along the 23 00:00:53,240 --> 00:00:51,989 way that way we can tell whether the 24 00:00:56,209 --> 00:00:53,250 rover is making steady progress 25 00:00:57,830 --> 00:00:56,219 throughout the test or whether it may 26 00:00:59,630 --> 00:00:57,840 come up against a wall and only make 27 00:01:01,430 --> 00:00:59,640 good progress at the beginning in which 28 00:01:02,569 --> 00:01:01,440 case then we know that extra wheel turns 29 00:01:04,130 --> 00:01:02,579 are not going to make much of a 30 00:01:05,840 --> 00:01:04,140 difference one of the great things 31 00:01:07,820 --> 00:01:05,850 that's happened along with spirit 32 00:01:09,679 --> 00:01:07,830 sitting still for so long is of course 33 00:01:11,719 --> 00:01:09,689 we've been parked in a really windy 34 00:01:13,429 --> 00:01:11,729 location and the winds have come along 35 00:01:15,830 --> 00:01:13,439 and cleaned off the solar panels 36 00:01:17,990 --> 00:01:15,840 tremendously so now we have lots of 37 00:01:19,370 --> 00:01:18,000 powers which not only gives us many 38 00:01:21,830 --> 00:01:19,380 hours a day where we can conduct 39 00:01:24,140 --> 00:01:21,840 scientific experiments and do our 40 00:01:26,990 --> 00:01:24,150 mobility tests on Mars to try to get the 41 00:01:28,999 --> 00:01:27,000 rover out but we've bought ourselves a 42 00:01:30,710 --> 00:01:29,009 lot more time before Spirit will even 43 00:01:33,289 --> 00:01:30,720 have to consider parking for the next