Dust Storm- Opportunity EOM, the end of the beginning of a new era in robotic spaceflight |
Dust Storm- Opportunity EOM, the end of the beginning of a new era in robotic spaceflight |
Jun 5 2018, 03:05 PM
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Expect a quiet few sols - http://www.lpl.arizona.edu/~lemmon/mars-tau-b.html
SOL TAU 5097 0.65 5098 0.64 5099 0.67 5100 0.64 5101 0.60 5102 0.60 5103 0.61 5104 1.55 5105 **** 5106 2.12 |
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Jun 11 2018, 07:32 PM
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Martian Photographer Group: Members Posts: 353 Joined: 3-March 05 Member No.: 183 |
I suppose since the news is here, it is on the plot here.
I did a very simple 2-stream model, and you can approximate total insolation (proportional to array W-hrs/sol) as varying with exp(-tau*gamma), where gamma is 0.35-0.40 or so. If you compare two sols, that's exp(-delta_tau*gamma). A lot of the extinction goes into sky light, but total light is still much reduced. At these taus, tilt is a small perturbation, I'd guess. (A chunk of sky is blocked, but that chunk is the source of a small fraction of light, and the tilt hasn't changed.) |
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