Imagine the Universe!
Imagine Home | Satellites and Data |

The Ginga Satellite

photo of Ginga in the clean room
Credit: ISAS

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] [Archive] [Software] [Gallery] [Publications]

If words seem to be missing from the articles, please read this.

Imagine the Universe! is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Barbara Mattson
Curator: Meredith Gibb
Responsible NASA Official: Phil Newman
All material on this site has been created and updated between 1997-2014.
This page last updated: Wednesday, 10-Oct-2007 15:12:36 EDT