Fengyun

Fēngyún (simplified Chinese: 风云; traditional Chinese: 風雲; lit.: 'wind cloud'), abbreviated FY, are China's weather satellites. China has launched polar orbit and geosynchronous orbit meteorological satellites since 1988. On 11 January 2007 China destroyed one of these satellites (FY-1C) in a test of an anti-satellite missile.

Model of Fengyun-2 satellite

The satellites in the FY-1 and FY-3 series are polar-orbiting sun-synchronous orbits. The satellites in the FY-2 and FY-4 series are in geosynchronous orbit.

Meteorological satellites are important in oceanography, agriculture, forestry, hydrology, aviation, navigation, environmental protection and national defense. They contribute to the national economy and to preventing and mitigating disasters. The latest satellites monitor bad weather around the clock, particularly convective rainstorms, thunderstorms and hailstorms. They also monitor developing sandstorms as well as air quality and provide early warnings.

According to NASA, the intentional destruction of FY-1C created 2,841 high-velocity debris items, a larger amount of dangerous space junk than any other space mission in history.[1]

Current and previous satellites
Launch dateSatellitesVehicleOrbitIn useresolutionheightdiameter
1988-09-06 20:30:19 FY-1A CZ-4 SSO No 1.08 km 1.2 meter 1.4 meter
1990-09-03 00:53 FY-1B CZ-4 SSO No 1.08 km 1.8 meter 1.4 meter
1997-06-10 12:01:00 FY-2A CZ-3 GEO 105°E No 1.25 km 4.5 meter 2.1 meter
1999-05-10 01:33:00 FY-1C CZ-4 SSO Destroyed in 2007 [2]
2000-06-25 11:50:00 FY-2B CZ-3 GEO 105°E No 1.25 km 4.5 meter 2.1 meter
2002-05-15 01:50:00 FY-1D CZ-4B SSO No 1.08 km 1.8 meter 1.4 meter
2004-10-19 01:20:04 FY-2C CZ-3A GEO 105°E No[3] 1.25 km 4.5 meter 2.1 meter
2006-12-08 00:53:22 FY-2D CZ-3A GEO 86.5°E Yes 1.25 km 4.5 meter 2.1 meter
2008-05-27 03:02:33 FY-3A CZ-4C SSO Yes 250 meter 4.4 meter 2 meter
2008-12-23 00:54:04 FY-2E CZ-3A GEO 86.5°E[4] Yes 1.25 km 4.5 meter 2.1 meter
2010-11-04 18:37:12 FY-3B CZ-4C SSO Under Preparation 250 meter 4.4 meter 2 meter
2012-01-13 00:56:04 FY-2F CZ-3A GEO 112.5°E[5] Yes
2013-09-23 03:07:17 FY-3C CZ-4C SSO[6] Yes 250 meter 4.4 meter 2 meter
2014-12-31 01:02:04 FY-2G CZ-3A GEO 105°E[7] Yes
2016-12-10 16:11:00 FY-4A CZ-3B GEO 86.5°E[8] Yes
2017-11-14 18:35 FY-3D[9] CZ-4C SSO Yes 250 meter 4.4 meter 2 meter

Planned satellites

The newer FY-3 series is an improved generation of polar orbiting heliosynchronous weather satellites. The FY-4 series is an improved generation of geosynchronous meteorological satellites.

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gollark: APIONET has #apionet, apioid.
gollark: APIONET isn't in #general.
gollark: Nope!
gollark: The IRC bridge actually uses webhooks to convincingly emulate having multiple users with profile pictures and such.

See also

References
  1. NASA identifies Top Ten space junk missions; Michael Cooney, NetworkWorld, 28 July 2010
  2. "Concern over China's missile test". BBC News. 2007-01-19.
  3. Hong Kong Observatory Archived 2008-07-25 at the Wayback Machine
  4. "FY-2E". National Satellite Meteorological Center of CMA (in Chinese). Archived from the original on 23 December 2015. Retrieved 23 December 2015.
  5. "National Satellite Meteorological Center of CMA". Archived from the original on 21 January 2016. Retrieved 19 February 2019.
  6. Barbosa, Rui C. (22 September 2013). "Chinese Long March 4C launches third Fengyun-3 satellite". NASASpaceFlight.com. Retrieved 6 June 2015. Launch took place at 03:07UTC from the LC9 Launch Complex of the Taiyuan Satellite Launch Center, Shanxi Province.
  7. "FY-2G". National Satellite Meteorological Center of CMA (in Chinese). Archived from the original on December 23, 2015. Retrieved 23 December 2015.
  8. "Satellite: FY-4A". OSCAR – Observing Systems Capability Analysis and Review Tool. World Meteorological Organization. Retrieved 11 December 2016.
  9. Rui C. Barbosa (14 November 2017). "Long March 4C launches Fengyun-3D and HEAD-1 co-passenger". NASA Spaceflight.
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