Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer

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 Two of the silicon solar cell covered sides have been replaced by plastic panels to display the instruments inside the satellite .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.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type MODELS-Uncrewed Spacecraft & Parts Manufacturer TRW Space & Technology Group
 Dimensions Overall: 20 in. tall x 12 in. wide (50.8 x 30.5cm)
 Materials Mixed metals, electronics, clear plastics
 Inventory Number A19761800000 Credit Line Gift of the TRW Space and Technology Group Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.