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Fen-Yun 1 is a low orbit polar satellite, launched by the Chinese National Meteorological Agency. The Fen-Yun 1 series, consisting of satellites 1A, 1B and 1C, were launched between 1988 and 1999.
First received image of Feng-Yun 1C |
Description | Value | Value | Value | Value | Unit |
Satellite | FY-1A | FY-1B | FY-1C | FY-1D |
|
Launch date | 1988/09/07 | 1990/09/03 | 1999/05/10 | 2002/05/15 |
|
Name before launch | n/a | n/a | n/a | n/a |
|
Actual name | FEN-YUN 1A | FEN-YUN 1B | FEN-YUN 1C | FEN-YUN 1D |
|
NASA ID | 19467 | 20788 | 25730 | 27431 |
|
Approximate height | 870 | 870 | 870 | 870 | km |
Orbit inclination | 98.85 | 98.85 | 98.85 | 98.85 | degrees |
Orbit period | 102.301 | 102.301 | 102.301 | 102.301 | minutes |
Frequencies | 1700.4 (HRPT?) | 1700.4 (HRPT?) | 1700.4 | 1700.4 | MHz |
Channel No. | Wavelength (micrometer) | Primary use |
1 | 0.58-0.68 | Daytime cloud, ice and snow vegetation |
2 | 0.84-0.89 | Daytime cloud, vegetation, water |
3 | 3.55-3.93 | Heat source, night cloud |
4 | 10.3-11.3 | SST, day/night cloud |
5 | 11.5-12.5 | SST, day/night cloud |
6 | 1.58-1.64 | Soil humidity, ice/snow distinguishing |
7 | 0.43-0.48 | Ocean color |
8 | 0.48-0.53 | Ocean color |
9 | 0.53-0.58 | Ocean color |
10 | 0.90-0.965 | Water vapor |
The CHRPT format (of 1C and 1D) is very similar to the one used for the HRPT images of the NOAA series (according to the chines agency).