Imagine the Universe!

The Ginga Satellite


photo of Ginga in the clean room Astro-C, renamed Ginga (Japanese for 'galaxy'), was launched from the Kagoshima Space Center on 5 February 1987. The primary instrument for observations was the Large Area Counter (LAC). Ginga was the third Japanese X-ray astronomy mission, following Hakucho and Tenma. Ginga reentered the Earth's atmosphere on 1 November 1991.

Mission Characteristics

* Lifetime : February 5, 1987 - November 1, 1991
* Energy Range : 1 - 500 keV
* Payload :
  • Large Area Proportional Counter (LAC) 1.5-37 keV
    Eff. area = 4000 cm2, FOV = 0.8° x 1.7°
  • All-Sky Monitor (ASM) 1-20 keV
    Eff. area = 70 cm2, FOV = 1° x 180°
  • Gamma-Ray Burst Detector (GBD) 1.5-500 keV
    Eff. area = 60 cm2 (SC) and 63 cm2 (PC), FOV = All-sky
* Science Highlights:
  • Discovery of transient Black Hole Candidates and study of their spectral evolution.
  • Discovery of weak transients in the galactic ridge.
  • Detection of cyclotron features in 3 X-ray pulsars: 4U1538-522, V0332+53, and Cep X-4.
  • Evidence for emission and absorption Fe feature in Seyfert probing reprocessing by cold matter.
  • Discovery of intense 6-7 keV iron line emission from the galactic center region.
* Archive : Lightcurves, Spectra, and Raw data from the LAC experiment.

[About Ginga] (http://heasarc.gsfc.nasa.gov/docs/ginga/ginga_about.html) [Archive] (http://heasarc.gsfc.nasa.gov/docs/ginga/archive/ginga_archive.html) [Software] (http://heasarc.gsfc.nasa.gov/docs/ginga/software/ginga_software.html) [Gallery] (http://heasarc.gsfc.nasa.gov/docs/ginga/ginga_images.html) [Publications] (http://heasarc.gsfc.nasa.gov/docs/ginga/bib/ginga_biblio.html)
Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Laboratory for High Energy Astrophysics at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Jim Lochner
All material on this site has been created and updated between 1997-2004.

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