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20 votes

Why wasn't robotic arm used to free Spirit rover from sand trap? (and other things...)

Answering the question in the title, because the arm could not reach anywhere but the front wheels. The description here indicates the left/right swing of the shoulder joint was 160 degrees, so the ...
GremlinWranger's user avatar
10 votes

Why wasn't robotic arm used to free Spirit rover from sand trap? (and other things...)

I actually received a reply from NASA when I sent this question to them at the time. Unfortunately I can't find the exact email anymore, but their official reply was that the motors in the arm were ...
Innovine's user avatar
  • 4,635
5 votes

Why wasn't robotic arm used to free Spirit rover from sand trap? (and other things...)

Found specification of all the motors of the IDD (robotic arm): https://esmats.eu/esmatspapers/pastpapers/pdfs/2003/fleischner.pdf Rover mass is 176.5 kg A mass "m" produces a vertical ...
jumpjack's user avatar
  • 3,043
1 vote

How to retrieve MER2 Spirit rover orientation along the traverse map?

Position I found the answer for position. The only kernels needed for the https://wgc.jpl.nasa.gov:8443/webgeocalc/#StateVector are the ones included in "main MER release" in the list: Then ...
jumpjack's user avatar
  • 3,043

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