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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, 30 m resolution and 4 spectral bands. The hyperspectral imager enables HJ-1A 50 km swath, 100m resolution and 110~128 bands and ±30° oblique viewing angle. The infrared camera enables HJ-1B 720 km swath, 150/300 m resolution and 4 spectral bands.

  Technical Specifications
   Number of Satellites      2 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   Hyperspetral   2 x CCD   Infared MS
   Resolution       30 m   100 m   30 m   150 m
   Sensor bands       Blue, green, red and
  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
      8 bits   12 bits   8 bits   10 bits
   Revisit capacity      4 days   4 days   4 days   4 days

[Statement] These image samples are purpose for demonstration and non-commercial purposes by partners, clients, customers and users. Please be reminded of “SV/GF/ZY/HJ satellite imagery, SpaceWill's distribution” on the image in your use. Should you need any other images that are not released here, please connect us via

  • Glinzendorf, Austria
  • Erhai, Yunnan, China
  • Lake Acigol, Turkey