Chang'e 3: Lunar Day 3 and onwards, Ongoing discussion of the Rover/Lander mission |
Chang'e 3: Lunar Day 3 and onwards, Ongoing discussion of the Rover/Lander mission |
Feb 11 2014, 10:10 AM
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Senior Member Group: Members Posts: 1440 Joined: 26-July 08 Member No.: 4270 |
The China Space facebook page reports the lander has awaken (Link).
I haven't heard anything about the rover. -------------------- -- Hungry4info (Sirius_Alpha)
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Mar 15 2014, 06:42 PM
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Junior Member Group: Members Posts: 45 Joined: 18-July 05 Member No.: 439 |
Don't know if this is correct -- just reasoning.
As of Ye Peijian, the source of the partial failure of Yutu was an electrical fault in a control circuit in its driving unit which prevented folding mast, closing upper deck with the right solar panel and making correct attitude of the left solar panel. This explanation contradicts official statements from January 25 which stated all pre-sleep actions had been conducted correctly. And this explanation does not explain absense of any movement since January 22. I also doubt a certain circuit is in charge for both articulating panels and powering wheel and direction control motors. Could it be another way? We know Yutu is very sensitive to night time attitude that should be of southern bearing and almost level roll (+1°...-2° or so) to have optimal thermal state in the morning at the moment of awaking. If the problem appeared in the rover drive system which prevented taking this correct attitude on January 25 this naturally explains almost everything: * absense of movement since then; * fears of extreme cold in the night; * late wake-up and early sleep in Lunar Day 3 vs. Day 2; * and even the visible non-horizontality of both horizon and Chang'e 3 upper deck in the Lunar Day 3 stereo pair. What do you think? |
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