<Ul> <Li> Principal investigator: Andrew Ingersoll / California Institute of Technology </Li> </Ul> <Li> Principal investigator: Andrew Ingersoll / California Institute of Technology </Li> <Tr> <Td> </Td> <Td> </Td> </Tr> <P> Pioneer 10 was launched on March 3, 1972 at 01: 49: 00 UTC (March 2 local time) by the National Aeronautics and Space Administration from Space Launch Complex 36A in Florida, aboard an Atlas - Centaur launch vehicle . The third stage consisted of a solid fuel TE364 - 4 developed specifically for the Pioneer missions . This stage provided about 15,000 pounds of thrust and spun up the spacecraft . The spacecraft had an initial spin rate of 30 rpm . Twenty minutes following the launch, the vehicle's three booms were extended, which slowed the rotation rate to 4.8 rpm . This rate was maintained throughout the voyage . The launch vehicle accelerated the probe for net interval of 17 minutes, reaching a velocity of 51,682 km / h (32,114 mph). </P>

The pioneer 10 spacecraft has which of the following onboard