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Tenma

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Tenma

Tenma (Japanese for "Pegasus").

Tenma, known as Astro-B before launch, was Japan's second X-ray astronomy satellite, developed by the Institute of Space and Astronautical Science. It was launched on February 20, 1983 using a M-3S-3 rocket as the vehicle.

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.

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

External links

  • Tenma at ISAS
  • Tenma at NASA


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