Pioneer 10 Pioneer 10 Pioneer 10 (originally designated Pioneer F) is an American space probe, launched in 1972 and weighing , that completed the first mission to the planet Jupiter. Thereafter, "Pioneer 10" became the first of five artificial objects to achieve the escape velocity that will allow them to leave the Solar System. This space exploration project was conducted by the NASA Ames Research Center in California, and the space probe was manufactured by TRW Inc. "Pioneer 10" was assembled around a hexagonal bus with a diameter parabolic dish high-gain antenna, and the spacecraft was spin stabilized around the axis of
Galileo Probe data for further insights into the atmosphere, and one way to do this was to study the motion of the probe during the descent down. It was found that at 700 mbar of pressure the winds on Jupiter are prograde and increase to a speed of 170 m/s at 4000 mbars of pressure. Galileo Probe has cospar ID 1989-084E while the orbiter had id 1989-084B. Names for the spacecraft include "Galileo Probe" or "Jupiter Entry Probe" abbreviated JEP. The related COSPAR IDs of the Galileo mission: Galileo Probe The "Galileo" Probe was an atmospheric-entry probe carried by the main "Galileo"