HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

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The Small Astronomy Satellite 2 (SAS-2)

photo of SAS-2
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 : HEASARC hosts Raw data, image and exposure maps
[SAS-2 Home] [About SAS-2] [Archive] [Gallery] [Publications]
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Page authors: Lorella Angelini Jesse Allen
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Last modified: Thursday, 24-Sep-2020 20:57:41 EDT

HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.