| definition |
- FY-1 is China's meteorological satellite. Multichannel Visible and IR Scan Radiometer (MVISR) is the major sensor of FY- 1. The total number of channels of the sensor is increased from 5 channels in FY-1 A and B to 10 channels in FY-1 C and D. These channels include 4 VIS channels, 3 near IR channels, 1 short wave IR channel and 2 long wave IR channels. The instantaneous field of view of the sensor is 1.2 microrad and the resolution at subpoint is 1.1 Km. The scan rate of MVISR is still 6 lines/second and total pixel of every scan line is 20480. The High Resolution Picture Transmission of FY-1 C and D is named CHRPT. It is considered that the system which receives and processes HRPT/NOAA- Now data can receive and process CHRPT with updating as few as possible. The scan rate of MVISR is 6 lines/second. The words of every channel are 2048 and the total words of 10 channels are 20480. Plus the sync and auxiliary information there are 22180 words every scan line and 10 bits every word. The bit rate is 1.3308 Mbps, just twice as many as the bit rate of HRPT/NOAA-Now. The modulation of CHRPT data is PSK and bit format is split phase. The transmission frequency of CHRPT will be 1700.5MHz and the data format will be similar to the HRPT/NOAA-Now data format. Therefore, it will to be easy to process CHRPT data with HRPT/NOAA-Now data processing system. Additional information available at "http://nsmc.cma.gov.cn/fy1e.html"
[Summary provided by China's National Satellite Meteorological Center]
Group: Platform_Details Entry_ID: FY-1 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: FY (Feng-Yun) Short_Name: FY-1 Long_Name: China's Meteorological Satellite-1 End_Group Group: Platform_Associated_Instruments Short_Name: MVISR - Multichannel Visible and Infrared Scan Radiometer Short_Name: CHRPT - The High Resolution Picture Transmission of FY-1 C End_Group Group: Orbit Orbit_Altitude: 863 km Orbit_Inclination: 98.8 degrees Equator_Crossing: 8:53 AM Orbit_Type: LEO > Low Earth Orbit > Polar Sun-Synchronous End_Group Online_Resource: http://nsmc.cma.gov.cn/item/fy_demo2.asp Group: Platform_Logistics Launch_Date: 1988-09-06 Launch_Site: Taiyuan Space Launch Center, China Primary_Sponsor: China National Meteorology Center End_Group End_Group
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