InSight Surface Operations, 26 Nov 2018- 21 Dec 2022 |
InSight Surface Operations, 26 Nov 2018- 21 Dec 2022 |
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#1201
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![]() Merciless Robot ![]() ![]() ![]() ![]() Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 ![]() |
Congratulations to the InSight team on a successful landing! We'll discuss the remainder of the mission here.
![]() -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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#1202
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![]() Martian Photographer ![]() ![]() ![]() Group: Members Posts: 352 Joined: 3-March 05 Member No.: 183 ![]() |
So, I ran the numbers. For the tilted panel case with no atmosphere at all, and no surface reflection, 2x70deg tilt is 67% as good as 2x0deg tilt. Adding in idealized reflected light from the surface gets to a bit above 80% (as long as I can use red albedo, which may not be appropriate for the triple-junction cells). Adding in a small dust storm--with surface and sky light--gets back to 2/3, which is better than I would have guessed. Of course, that is 2/3 of a much smaller number and that eats into margins. If one were not worried about things like SEIS or using parts out of a warehouse, a mixed tilt approach might be worth it.
The math changes quite a bit at the poles; note that Mars Polar Lander had both level and tilted panels. |
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