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- China began its geostationary meteorological satellite FY-2 program in 1980. Through hard work for more than ten years, the first FY-2 satellite was launched on June 10, 1997 and located in the geostationary orbit at an altitude of 35800 kilometers over 105 degrees E. The satellite is a cylinder of 2.1 m by 1.6 m. The attitude of the satellite is spin stabilized with a speed of 100 rotation/min. FY-2A is the first geostationary meteorological satellite in China. It is a spin-stabilized satellite. The main function of FY-2A is observation. It takes visible, infrared and water vapor disk images of the Earth hourly. The main payload of FY-2A is a Visible and Infrared Spin Scan Radiometer (VISSR). The VISSR takes the Earth and cloud images from the space. A complete 20° x20° scan covering the full Earth disk can be accomplished every 30 minutes by means of combination of satellite spin motion (100 rpm from the west to east) and step action of the scan mirror (2500 steps from north to south). The S-VISSR data are retransmitted to user stations via FY-2A during the VISSR observation. The stretched VISSR (S-VISSR) data are the digital image data originated by VISSR on board and stretched on the Command and Data Acquisition Station (CDAS) in time. After stretching, the transmission rate of S-VISSR data is reduced and can be easily received by the users. Additional information available at http://nsmc.cma.gov.cn/fy2e.html
[Summary provided by China's National Satellite Meteorological Center]
Group: Platform_Details Entry_ID: FY-2 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: FY (Feng-Yun) Short_Name: FY-2 Long_Name: China's Meteorological Satellite-2 End_Group Group: Synonymous_Platform_Names Short_Name: Feng Yun 2 End_Group Group: Platform_Associated_Instruments Short_Name: VISSR End_Group Group: Orbit Orbit_Altitude: 35,800 km Orbit_Type: GEO > Geosynchronous > Geostationary End_Group Creation_Date: 2007-09-26 Online_Resource: http://www.fas.org/spp/guide/china/earth/fy-2.htm Sample_Image: http://www.fas.org/spp/guide/china/earth/fy2-s.jpg Group: Platform_Logistics Launch_Date: 1997-06-10 Launch_Site: Xichang Space Launch Center, China Primary_Sponsor: CHINA/CMA End_Group End_Group
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