Extricating Spirit, Digging out from Troy |
Extricating Spirit, Digging out from Troy |
Nov 7 2009, 04:13 PM
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#1
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Member Group: Members Posts: 239 Joined: 18-December 07 From: New York Member No.: 3982 |
5 downsampled navcam frames from sol 2078 are down. Someone might want to make an animation.
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Nov 17 2009, 04:11 PM
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#2
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Senior Member Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16 |
Actually, a few mm. Really? I originally wrote mm in the post but then calculated that the change from yestersol to tosol was only 0.21mm E/W 0.58mm N/S (I can't remember off hand the directions). Your the expert at this these days so I hope your right. The rationale (my assumption) is that in that case the imaging sequence that would be triggered would be "front_hazcam_fault_pri15_4bpp" instead of "front_hazcam_ultimate_4_bpp" and the seqid corresponds to the latter. Thanks, I hadn't appricated that logic before. -------------------- |
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Nov 17 2009, 04:27 PM
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#3
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
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Nov 17 2009, 05:09 PM
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#4
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
Could someone remind us what exactly these numbers are based on? Integrating the accelerometers? Visodom? AFAIK, it's both. If visodom is not used, the rover's position is updated solely with the IMU data. If visodom is used, and this is the case for the current drive, the position is calculated (my guess) as follows: 1. A step is executed in "blind" mode and the position updated with IMU info. 2. A navcam shot is taken and processed by the visodom logic and a corrected position is determined. |
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