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HuanJing-1

 

 


Data Sheet
  • Satellite Introduction
  • Image Gallery

HJ-1A&B Satellites

Archived Data Coverage of Land Surface of Whole Earth

Launched on 6 September 2008, HJ-1 is composed of 2 optical satellites HJ-1A and HJ-1B, HJ-1A is equipped with 1 CCD camera and 1 hyperspectral imager, and HJ-1B is equipped with 1 CCD camera and 1 infrared camera. The 2 CCD cameras adopt the same design, and placed symmetrically at nadir and split the field of view and observe in parallel and realize imagery of 700 km swath, 30m resolution and 4 spectral bands. The hyperspectral imager enables HJ-1A 50km swath, 100m resolution and 110~128 bands and ±30°oblique viewing angle. The infrared camera enables HJ-1B 720km swath, 150/300m resolution and 4 spectral bands.
 
  Technical Specifications
   Number of Satellites      2 identical satellites: HJ-1A and HJ-1B
   Launch time      September 6, 2008
   Mission Life      3 years
   Orbit       Sun-synchronous, 10:30 am, descending node, 649 km altitude, 97.95° inclination
  angle
        HJ-1A   HJ-1B
   Operational      Operational   Retired
   Cameras      2 x CCD   Hyperspetra   2 x CCD   nfared MS
   Resolution       30 m   100 m   30 m   150 m
   Sensor bands       Blue, green, red and
  near-infrared		   110-128
  bands		   Blue, green, red
  and near-infrared		   Red-edge 1, red-edge 2,
  coastal blue and yellow
   Swath Width (at nadir)      700 km   50 km   700 km   720 km
   Dynamic range at
   imaging 		      8 bits   12 bits   8 bits   10 bits
   Revisit capacity      4 days   4 days   4 days   4 days