Country of Origin: United States of America
Overall: 20 in. tall x 12 in. wide (50.8 x 30.5cm)
Mixed metals, electronics, clear plastics
Demonstration model of one of the Environmental Research Satellites built by TRW Space Vehicles Division for the Department of Defense. Two of the silicon solar cell covered sides have been replaced by plastic panels to display the instruments inside the satellite . The prototype was donated to NASM by TRW in April 1975. The TRS/ERS series of spacecraft were developed in the early years of the space program.
Gift of the TRW Space and Technology Group