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Spectrometer, X-ray, OSO-5


Display Status:

This object is on display in the Boeing Aviation Hangar room at Steven F. Udvar-Hazy Center in Chantilly, VA.

Spectrometer, X-ray, OSO-5

Collection Item Summary:

Flight-spare x-ray spectrometer identical to one that flew on the OSO-V satellite launched on 22 January 1969. It was used to examine the very high temperature spectrum from solar flares in the x-ray region. Developed at NASA's Goddard Space Flight Center this experiment provided the first detailed observations of x-ray and ultraviolet radiation from solar flares estimated to be at temperatures of 10 to 30 million degrees. This flight-spare instrument is similar to one flown on OSO-III. Transferred from GSFC/NASA in 1983, it was on display in the "Stars" Gallery from 1983 until October 1997.

Collection Item Long Description:

Data Source

National Air and Space Museum


Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Transferred from the National Aeronautics and Space Administration


Aluminum, beryllium, mixed leightweight metals, Bragg crystals, electronics


3-D: 111.8 x 33 x 20.3cm (44 x 13 x 8 in.)

Country of Origin

United States of America



Inventory Number


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