Power Pioneer 11




pioneer 11 used 4 snap-19 radioisotope thermoelectric generators (rtgs) (see diagram). positioned on 2 three-rod trusses, each 3 meters (9 feet 10 inches) in length , 120 degrees apart. expected safe distance sensitive scientific experiments carried on board. combined, rtgs provided 155 watts @ launch, , decayed 140 w in transit jupiter. spacecraft required 100 w power systems.




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