Tenma

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

Battery failure in July 1984 caused the operation to be limited, and continuing problems lead to the termination of X-ray observation in 1985. It reentered the atmosphere on January 19, 1989.

[edit] 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

[edit] External links

• Tenma at ISAS
• Tenma at NASA