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

This is a back-up instrument for the Bragg crystal X-ray spectrometer experiment flown in the pointed sail section on OSO-4, launched on 18 October, 1967. It was designed and built at the Naval Research Laboratory (NRL) by Talbot Chubb in Herbert Friedman's group. The spectrometer was transferred to NASM from NRL in 1982. It was acquired still in its original display box with other OSO-era solar instrumentation.

 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 INSTRUMENTS-Scientific Manufacturer NAVAL RESEARCH LABORATORY
 Dimensions 3-D (Hex Board Storage): 116.8 × 61 × 20.3cm, 11.3kg (3 ft. 10 in. × 2 ft. × 8 in., 25lb.)
3-D (Spectrometer, X-ray, OSO-4): 101 × 26 × 9.5cm, 8.6kg (3 ft. 3 3/4 in. × 10 1/4 in. × 3 3/4 in., 19lb.)
 Materials Magnesium
Copper Alloy
Ferrous Alloy
Plastic
Unknown Coating
Paint
Electrical Wiring
 Inventory Number A19840819000 Credit Line Transferred from the Naval Research Laboratory Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.