Center for Remote Sensing and GIS “Terra”
+7 (727) 293-94-27
+7 (727) 291-78-87 (fax)
gis-portal.kz

Launched on 6 September 2008, HJ-1 is composed of 2 optical satellites HJ-1A and HJ-1B, and 1 radar satellite.

HJ-1A is equipped with 1 CCD camera and 1 hyperspectral imager, and HJ-1A is equipped with 1 CCD camera and 1 infrared camera. The 2 CCD cameras were adopted the same design, and they are 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.
Operator: SpaceView (China).
 

Technical characteristics of HJ-1A

 

Mode: CCD camera HIS
(hyperspectral)
Sensor bands (µm): blue: 0.45–0.52
green: 0.52–0.59
red: 0.63–0.69
 
0.45-0.95
(110-128 bands)
 
Spatial resolution, m: 30 100
Dynamic range: 10 bits
Swath width: 700 km 50 km

 

 Technical characteristics of HJ-1B

 

Mode: CCD camera IRMSS
(infrared)
Sensor bands (µm): blue: 0.45–0.52
green: 0.52–0.59
red: 0.63–0.69
Near-IR: 0,77–0,89
 
Near-IR: 0,77–0,89
SWIR1: 1,55–1,75
SWIR2: 3,5–3,9
TIR: 105-125
 
Spatial resolution, m: 30 150
Dynamic range: 10 bits
Swath width: 700 km 700 km
Revisit time: 4 days