To the Cape!, Quackmire and arm troubles |
To the Cape!, Quackmire and arm troubles |
Mar 31 2008, 12:16 PM
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
"Hey folks! I’m on-duty with Opportunity this week and it’s going to be pretty exciting. We are in the process of driving the rover over to the wall of Cape Verde to study the layers of rocks there in much greater detail. I will be posting updates all week with the spectacular new pictures that we should be receiving. Stay tuned, it’s going to be a pretty cool week!"
Thanks for the update Ryan : http://martianchronicles.wordpress.com/200...ng-to-the-cape/ I wonder how close they'll get. I think no closer than the height projected from it's base ( i.e. 45 degrees ) |
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Apr 3 2008, 04:25 PM
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Senior Member Group: Members Posts: 4260 Joined: 17-January 05 Member No.: 152 |
That's right, two very mild winters.
Does anyone know the current subsolar latitude on Mars? Equinox was Dec 10th, solstice is June 25th, so we're past halfway to solstice, but the sun moves northwards much more quickly near equinox, so I'd guess that the sun at noon is currently between 15 and 20 degrees to the north of zenith for Oppy. |
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Apr 3 2008, 06:00 PM
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
Sunrise\sunset (on the plains) is at around 5:55AM local mars time at the moment and on a typical Sol the percentages of the the total amount of power generated per hour of each sol is [very roughly]:
12-1PM:15% 1-2PM:13% 2-3PM:11% 3-4PM:7% 4-5PM:3% 5-6PM:1% (similar numbers apply in reverse to the morning) My take would be that they could risk being in the shade of the cape for quite a few hours in the evening without it being too risky in terms of overall power loss, being in shade from 3PM would only lose 10-11% of total daily power. It might have a significant impact on thermal management though which is something to bear in mind. |
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