Spacecraft design and mission details
|
Name |
Gaofen-4 |
|---|---|
|
Country |
China |
|
Developer |
CAST/BISSE (China’s Academy of Space Technology/Beijing Institute of Spacecraft System Engineering) |
|
Operator |
China Center For Resources Satellite Data and Application (CRESDA) |
|
Launch vehicle |
CZ-3B |
|
Launch date |
29 December 2015 |
|
Launch site |
Jiuquan Satellite Launch Center, China |
|
Date of deactivation |
- |
|
Orbit: Type |
Geo-synchronous |
|
Mission duration, years |
8 |
|
Revisit frequency |
20 seconds |
|
Mass, kg |
2950 |
Gaofen-4 observes China and the surrounding areas by pointing control. Gaofen-4 provides fast, reliable and stable optical remote sensing data to support disaster response, forestry, earthquake and meteorology applications, and supplements an advanced technology for alerting natural disasters, monitoring wild fires or typhoon. Gaofen-4 satellite data is mainly applied in the industries as environment, marine, agriculture and water resources in China and neighbor countries.
Specifications
|
Sensor bands |
VNIR: Blue: 450-900 nm Green: 450-520 nm Red: 630-690 nm Near-IR: 760-890 nm MWIR: 3500-4100 nm |
|---|---|
|
Dynamic range, bits per pixel |
10 |
|
Sensor resolution (at nadir), m |
VNIR: 50 m, MWIR: 400 m |
|
Swath width, km |
400 |
|
Onboard storage |
4600 |
Applications:
- Emergency management and emergency preventing;
- Climate change monitoring;
- Environmental monitoring;
- Mapping;
- Mining exploration;
- Agricultural management.