Fengyun 2-07

{{Short description|Chinese weather satellite}}

{{Infobox spaceflight

| name = Fengyun 2-07

| image = 20090829 Model of Fengyun-2 4002.JPG

| image_size = 250px

| image_caption = Model of Fengyun-2 meteorological satellite in Shanghai Science & Technology Museum.

| mission_type = Weather

| operator = National Satellite Meteorological Centre

| website =

| COSPAR_ID = 2012-002A

| SATCAT = 38049

| mission_duration =

| spacecraft_bus =

| manufacturer =

| dry_mass =

| launch_mass = {{convert|1369|kg}}

| power =

| launch_date = {{start-date|13 January 2012, 00:56|timezone=yes}} UTC

| launch_rocket = Chang Zheng 3A Y22

| launch_site = Xichang LA-3

| launch_contractor =

| disposal_type =

| deactivated =

| last_contact =

| decay_date =

| orbit_epoch = 31 October 2013, 22:00:50 UTC{{cite web|url=http://www.n2yo.com/satellite/?s=38049|title=FENGYUN 2F Satellite details 2012-002A NORAD 38049|work=N2YO|date=31 October 2013|access-date=31 October 2013}}

| orbit_reference = Geocentric

| orbit_regime = Geostationary

| orbit_periapsis = {{convert|35784|km|mi}}

| orbit_apoapsis = {{convert|35796|km|mi}}

| orbit_inclination = 1.00 degrees

| orbit_period = 1,435.98 minutes

| orbit_longitude = 86.5° East

| apsis = gee

}}

Fengyun 2-07{{cite web|url=http://www.calt.com/xwzx/zyxw/2011121516331191d277.html |publisher=China Academy of Launch Vehicle Technology |script-title=zh:长三甲遥二十二火箭将发射风云二号卫星 |date=15 December 2011 |access-date=13 January 2012 |language=zh |archive-url=https://web.archive.org/web/20140407095600/http://www.calt.com/xwzx/zyxw/2011121516331191d277.html |archive-date=7 April 2014 |url-status=dead }} or FY-2-07 ({{zh|风云二号07}} meaning Wind Cloud 2-07), also known as Fengyun-2F or FY-2F, is a Chinese weather satellite operated by China's National Satellite Meteorological Centre.{{cite web|url=http://en.allmetsat.com/satellite-fy2.php |title=Feng-Yun-2 |work=AllMetSat |access-date=13 January 2012 |archive-url=https://web.archive.org/web/20120103231600/http://en.allmetsat.com/satellite-fy2.php |archive-date=3 January 2012 |url-status=dead }} Part of the Fengyun programme, it was the sixth Fengyun 2 geostationary satellite to be launched.{{cite web|url=http://space.skyrocket.de/doc_sdat/fy-2.htm |title=FY 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H |first=Gunter |last=Krebs |work=Gunter's Space Page |access-date=13 January 2012 |archive-url=https://web.archive.org/web/20120222232227/http://space.skyrocket.de/doc_sdat/fy-2.htm |archive-date=22 February 2012 |url-status=dead }}

Fengyun 2-07 was launched by a Long March 3A carrier rocket, with the serial number Y22,{{cite web|url=http://www.nasaspaceflight.com/2012/01/china-launch-again-long-march-3a-launches-fengyun-2f/ |title=China launch again – Long March 3A launches FengYun-2F |first=Rui C. |last=Barbosa |date=12 January 2012 |access-date=13 January 2012 |publisher=NASASpaceflight.com |archive-url=https://web.archive.org/web/20120116113207/http://www.nasaspaceflight.com/2012/01/china-launch-again-long-march-3a-launches-fengyun-2f |archive-date=16 January 2012 |url-status=dead }} flying from Launch Area 3 at the Xichang Satellite Launch Centre. The launch took place on 13 January 2012 at 00:56 UTC, and resulted in the successful deployment of the satellite into a geosynchronous transfer orbit. After raising itself into its operational geostationary orbit, by means of an FG-36 apogee motor, the satellite will be positioned at a longitude of 86.5 degrees East.{{cite web|url=http://www.wmo.int/pages/prog/sat/satellitestatus.php |title=Status of current and future CGMS Members' satellites |publisher=World Meteorological Organization |date=15 December 2011 |access-date=13 January 2012 |archive-url=https://web.archive.org/web/20120626031044/http://www.wmo.int/pages/prog/sat/satellitestatus.php |archive-date=26 June 2012 |url-status=dead }}

At launch, Fengyun 2-07 had a mass of {{convert|1369|kg}}, however by the time it reaches its operational orbit, this will have decreased to {{convert|536|kg}}, partly through jettisoning the FG-36. The spacecraft is cylindrical, with a diameter of {{convert|2.1|m}}, and a length of {{convert|4.5|m}} fully deployed. It is spin-stabilised at a rate of 100 rpm, and carries a five-channel Stretched Visible and Infrared Spin Scan Radiometer, or S-VISSR, capable of producing visible light and infrared images of the Earth. The S-VISSR will return visible-light images with a resolution of {{convert|1.25|km}}, and infrared images with a resolution of {{convert|5|km}}. It will produce a full-disc image every thirty minutes, as well as imaging smaller areas of interest.{{cite web|url=http://www.wmo.int/pages/prog/sat/Instruments_and_missions/S-VISSR.html |title=Stretched Visible and Infrared Spin Scan Radiometer (S-VISSR) |publisher=World Meteorological Organization |date=June 2008 |access-date=13 January 2012 |archive-url=https://archive.today/20240525163647/https://www.webcitation.org/64eqgamUd?url=http://www.wmo.int/pages/prog/sat/Instruments_and_missions/S-VISSR.html |archive-date=25 May 2024 |url-status=dead }} In addition to S-VISSR, Fengyun 2-07 also carries an x-ray detector to monitor the Sun, and detect solar flares.