Jim Bell Q'n'a, October 19, 2006, Your questions answered! |
Jim Bell Q'n'a, October 19, 2006, Your questions answered! |
Oct 20 2006, 12:06 AM
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#1
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
For your fun and enjoyment, a new Jim'n'Doug show!
http://www.planetary.org/explore/topics/ma...vers/audio.html --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Oct 26 2006, 01:13 PM
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#2
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
Perhaps rover orientation is only updated for driving/imaging etc at each new site number. I would have thought that they would use any and every orientation update possible ( and any sun observation would be able to do this ) - if for no other reason than good HGA pointing for uplink each morning.
Doug |
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Oct 26 2006, 07:27 PM
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#3
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Member Group: Members Posts: 656 Joined: 20-April 05 From: League City, Texas Member No.: 285 |
...if for no other reason than good HGA pointing for uplink each morning. My recollection is that the HGA only requires something like +/- 2.5 degrees precision in pointing, and the drift in the rover orientation quaternion stays well within that over multiple drives. It would certainly simplify navigation from my perspective if they would recalibrate daily, as even half a degree of drift complicates long baseline photogrammetry. |
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