Search Results

The TOPEX/Poseidon spacecraft is scheduled for launch in August 1992 aboard an Ariane 42P launch vehicle. The mission is a collaborative scientific venture between NASA and CNES. The primary objective is to perform precise measurements of the ocean surface topography by radar altimetry from a precision, circular orbit. The satellite consists of two major sections, the Multimission Modular Spacecraft Standard Bus and the Instrument Module. The IM accommodates seven instruments, the solar array, three communication antennae, and a variety of satellite support equipment. Thermal vacuum/thermal balance testing of the TOPEX/Poseidon was performed at the Goddard Space Flight Center between 24 March 1992 and 22 April 1992. Simulation of the space environment was accomplished in a vacuum chamber using IR heating/cooling plates to establish boundary temperatures.