SNAP-27/ALSEP power subsystem used in the Apollo program.The Apollo Lunar Surface Experiments Package (ALSEP) measures lunar physical and environmental characteristics and transmits the data to receiving stations on earth. The data are used to derive information on the composition and structure of the moon. The electrical power subsystem generates and conditions all the electrical power for operations of the ALSEP system. The power source for the ALSEP is the Systems for Nuclear Auxiliary Power (SNAP) Radioisotope Thermoelectric Generator (RTG). The generator produces electricity by thermoelectric conversion. The radioactive isotope plutonium 238 is used as the energy source for the SNAP-27. By April 1, 1970, the SNAP-27 RTG had produced more than 230 kWh of continuous and stable power for the ALSEP.-
Document ID
19730041219
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Remini, W. C. (AEC-NASA, Manned Spacecraft Center Houston, Tex., United States)
Grayson, J. H. (NASA Manned Spacecraft Center Houston, Tex., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Subject Category
Auxiliary Systems
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference; Energy 70