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The Small Astronomy Satellite 2 (SAS-2)
Credit: NASA
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The second NASA Small Astronomy Satellite (SAS-2)
was dedicated to gamma-ray astronomy in the energy range above 35 MeV. SAS-2
was launched on 1972 November 15 and began operations on 1972 November 19.
On 1973 June 8, a failure of the low-voltage power supply ended the collection
of data.
Mission Characteristics
 Lifetime: 19
November 1972 - 8 June 1973
Energy Range:
20 MeV - 1 GeV
Payload:
- 32-level wire spark-chamber aligned with satellite spin axis (20 MeV-1
GeV), eff. area 540 cm2
Science Highlights:
- The first detailed look at the gamma-ray sky.
- Established the high energy component of diffuse celestial
radiation.
- Correlated the gamma-ray background with galactic structural
features.
Archive: Raw data, image and exposure maps
[About SAS-2]
[Archive]
[Gallery]
[Publications]
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