Apollo ALSEP Subpackage 2

Apollo ALSEP Subpackage 2

The Apollo 17 ALSEP was packed on two subpallets similar to the ones shown here. It consisted of five experiments: a Heat Flow Experiment; an Ejecta and meteorites Experiment; a Seismic Profiling Experiment; an Atmospheric Composition Experiment; and a Surface Gravimeter. Energy for the ALSEP was provided by the nuclear-powered Radioisotope Thermoelectric Generator. The last experiment ceased working in December 1974.