Satellite DataHJ-1A&B
Satellite DataSatellite Data
HJ-1A&1B
Data Sheet-
- Satellite Introduction
- Image Gallery
HJ-1A&B Satellites
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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 Sept 6, 2008 Mission Life 3 years Orbit Sun-synchronous, 10:30 am, descending node, 649 km altitude, 97.95° inclination
angleHJ-1A HJ-1B Operational Operational Retired Sensors 2 x CCD Hyperspetra 2 x CCD nfared MS Resolution (at nadir) 30 m 100 m 30 m 150 m Spectral bands Blue, green, red and
near-infrared110th-128th
bandsBlue, green, red
and near-infraredRed-edge 1, red-edge 2,
coastal blue and yellowSwath Width (at nadir) 700 km 50 km 700 km 720 km Dynamic Range at
Imaging8 bits 12 bits 8 bits 10 bits Revisit capacity 4 days 4 days 4 days 4 days
