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From Wikipedia, the free encyclopedia

Tenma (Japanese for "Pegasus").
Tenma (Japanese for "Pegasus").

Tenma, known as ASTRO-B before launch (COSPAR 1983-011A, SATCAT 13829), was a Japanese X-ray astronomy satellite, developed by the Institute of Space and Astronautical Science. It was launched on February 20, 1983 using a M-3S rocket on the M-3S-3 mission.

Battery failure in July 1984 caused the operation to become limited, and continuing problems lead to the termination of X-ray observation in 1985. It reentered the atmosphere on January 19, 1989 (other sources, for example the NORAD catalog of satellites, say decay date was 17 December 1988[1]).

Highlights

  • Discovery of the iron helium-like emission from the galactic ridge
  • Iron line discovery and/or study in many LMXRB, HMXRB and AGN
  • Discovery of an absorption line at 4 keV in the X1636-536 Burst spectra

See also

References

External links


This page was last edited on 3 June 2020, at 16:04
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