Tenma

Tenma, known as ASTRO-B before launch (COSPAR 1983-011A, SATCAT 13829), was a Japanese

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 (the day it stopped working) was 17 May 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

•  Spaceflight portal

References

External links

• Tenma at ISAS
• Tenma at NASA