NASA Insignia
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An artist's conception of the Ginga satellite

An artist's conception of the Ginga satellite. (Credit: ISAS/JAXA)

Lifetime: February 1987 - November 1991

Country (primary): Japan

Primary Science

The primary science objective of the Gigna mission was to provide observations of X-ray sources in active galactic nuclei and to make precise observations of X-ray celestial bodies.

Science Highlights

  • Discovered transiten black hole candidates and studied their spectral evolution
  • Disocvered weak transients in the galactic ridge
  • Found evidence for emission and absoprtion of iron feature in Seyfert galaxies
  • Disocvred intense 6-7 keV iron line emission from the galacitc center region

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