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GaoFen-1

 

 


Data Sheet
  • Satellite Introduction
  • Image Gallery

GF-1 SATELLITE

4 Satellites, 2 m Resolution, Optical, Free Use of 16 m Achieved Data

GF-1 (short for GaoFen-1) constellation is composed of 4 similar satellites. GF-1 is equipped with two 2 m panchromatic and 8 m multispectral cameras (PMC), and four wide-field imagers (WFI) with 16 m multi-spectral resolution and a combined swath of 800 km. The satellite allows the collection in PMC and WFI modes both simultaneously and separately. GF-1B, C or D is single-camera, collecting 2m panchromatic and 8 m multispectral resolution data. The four satellites work as a team providing massive collection, covering the whole planet only for 11 days, revisiting at any place on the Earth on a daily base.
 
  Technical Specifications
   Number of satellites      4 identical satellites: GF-1, GF-1B, GF-1C and GF-1D
       GF-1   GF-1B, C/D
   Mission life      8 years   8 years
   Weight       1060 kg   795 kg/satellite
  Launch time       April 26, 2013   April 11, 2018
   Orbit      Sun-synchronous, 10:30 am descending node, 645 km
  altitude, 98.0506° inclination angle
         2 x PM Camera (PMC)   4 x Wide Field Imager (WFI)   PM Camera (PMC)
   Sensor bands      Panchromatic, blue, green,
  red and near-infrared		   Blue, green, red and
  near-infrared		   Panchromatic, blue, green,
  red and near-infrared
   Resolution      Ppanchromatic: 2 m,
  multi-spectral: 8 m		   16 m   Panchromatic: 2 m,
  multi-spetractral: 8 m
   Locational accuracy      50 m CE90 (w/o GCPs)   30 m CE90 (w/o GCPs)
   Dynamic range at imaging      11 bits   12 bits
   Swath width     60 km   830 km   60 km
   Revisit capacity      4 days   1 day   2 days