ZiYuan-1 02


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Hyperspectral, IRS, 8 MS bands, HR

ZY-1 02 (short for ZiYuan-1 02) is composed of two satellites that are almost identical. ZY-1 02D (also named ZY1E) was launched on September 12, 2019. It is equipped with two cameras, one is VNIR camera and the other is hyperspectral camera. The VNIR camera has eight multispectral bands, and it has a large view field, with 115 km swath width. The hyperspectral camera has 166 bands. Its follow-on satellite ZY-1 02E (ZY1F) was launched on December 26, 2021, apart from VNIR and hyperspectral cameras, it is also equipped IRS camera that collect 15 m resolution infrared-spectral data. The two satellites provide great supports in investigating land resources, emergent monitoring and supervising services.

  Technical Specifications
   Number of satellites      2 satellites: ZY-1 02D and ZY-1 02E
   Mission life      5 years
   Weight      1840 kg
   Launch time      ZY-1 02D: September 12, 2019; ZY-1 02E: December 26, 2021
   Orbit       Sun-synchronous, 10:30 am descending node
  778 km altitude, 98.5° inclination angle
        Visible Near Infrared Camera   Hyperspectral
  IRS Camera
  (ZY-1 02E only)
  Sensor bands       Panchromatic
  Blue, Green, Red, NIR1
  Coastal Blue, Yellow
  Red Edge, NIR2
  Spectral Range:
  0.4 μm ~ 2.5 μm
  VNIR: 76 bands
  SWIR: 90 bands
  Spectral Range:
  7.7 μm ~ 10.5 μm
  Resolution (at nadir)      Panchromatic: 2.5 m
  Multispectral: 10 m
  30 m   15 m
   Locational accuracy      50 m CE90 (w/o GCPs)
   Dynamic range at
     12 bits
   Swath width (at nadir)       115 km   60 km   115 km
   Onboard storage      2 Tb
   Revisit capacity      5 days


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