GaoFen-7
Launched on Nov. 3, 2019, Gaofen-7 is China's first civil-use optical transmission 3D surveying and mapping satellite that reaches the sub-meter level.
The triple stereo camera can effectively obtain 20 km-width panchromatic stereo images with resolution up to 0.65m, and 2.6m-resolution multispectral images; the equipped two-beam laser altimeter can perform Earth observation at 3Hz observation frequency, with ground footprint diameter less than 30m, and acquire full waveform data at a sampling frequency higher tan 1 GHz.
Through the composite mapping mode of stereo camera and laser altimeter, the satellite realizes 1:10000-scale stereo mapping, serving the application needs of natural resource survey monitoring, basic surveying and mapping, and global geo-information resource construction, and providing high-precision satellite remote sensing images for the fields of housing and urban rural development as well as national survey statistics.
Some general information for HEAD Aerospace GeoFen-7 Stereo imagery:
Constellation | GaoFen |
Launch | 3 November 2019 |
Spectral bands | Panchromatic, Blue, Green, Red, Near Infrared |
Spatial resolution | Panchromatic @ 0.65 m Multispectral @ 2.6 m |
Geometric precision | <8m CE90 |
Vertical accuracy | 0.98m RMSE/1.62m (LE90) |
Radiometric resolution | 11 bits |
| Revisit time | 5 days |
| Swath width | 20 km |
| Orbit | Sun-synchronous 10:30 AM descending node 506km altitude |
Key features
Stereo images at a spatial resolution of up to 65cm
Optical and Near-Infrared imagery available
Area mapping down to 1:10000 scale
Satellite tasking capability to meet your project requirements
Capture any area or point of interest around the world
Generate your own very-high-resolution elevation models!
Key applications
Infrastructure
Monitoring illegal construction
Creating a base map for visual reference
Generating elevation model at a local level
Monitoring illegal construction
Creating a base map for visual reference
Generating elevation model at a local level
Forestry
Assessing slope failure and soil erosion
Detecting forest roads
Estimating the number of trees per unit area
Assessing slope failure and soil erosion
Detecting forest roads
Estimating the number of trees per unit area
Transportation
Surface analysis for road construction
Intelligent transportation systems (ITS)
3D flight simulation
Surface analysis for road construction
Intelligent transportation systems (ITS)
3D flight simulation
FAQs
GaoFen-7 imagery is delivered as stereo pairs only if it is specified so. Single imagery can also be ordered.
You can easily select which mode you prefer for your project through the form below, in the Imaging modes field: Mono - L1Bundle for single image acquisitions, Stereo-L1 Bundle for stereo imagery over your area of interest. We will come back to you as soon as possible with a quote tailored to your needs!
The minimum order for GaoFen-7 imagery is 25 km² for Archive and 100 km² for New tasking, with minimum AOI width of 5km.
