CBERS-2B
{{short description|Chinese-Brazilian remote sensing satellite}}
{{EngvarA|date=December 2020}}
{{Use dmy dates|date=December 2020}}
{{Infobox spaceflight
| auto = all
| name = CBERS-2B
| image = CBERS-2B anecoica.jpg
| image_caption =
| insignia = CBERS-2B patch.png
| mission_type = Remote sensing
| operator = CNSA / INPE{{cite web|url=http://space.skyrocket.de/doc_sdat/cbers-1.htm|title=CBERS 1, 2, 2B / ZY 1A, 1B, 1B2|first=Gunter|last=Krebs|work=Gunter's Space Page|access-date=1 December 2013}}
| website =
| COSPAR_ID = 2007-042A
| SATCAT = 32062
| mission_duration = 2 years (planned)
{{time interval|19 September 2007, 03:26:13|10 May 2010}} (achieved)
| spacecraft_type = CBERS
| spacecraft_bus = Phoenix-Eye 1
| manufacturer = CAST
| dry_mass =
| launch_mass = 1450 kg
| dimensions = 1.8 x 2.0 x 2.2 m
| power = 1100 watts
| launch_date = 19 September 2007,
03:26:13 UTC{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowell|work=Jonathan's Space Page|access-date=1 December 2013}}
| launch_rocket = Long March 4B
| launch_site = Taiyuan Satellite Launch Center, LC-7
| launch_contractor = SAST
| last_contact = 10 May 2010
| decay_date =
| orbit_epoch = 19 September 2007
| orbit_reference = Geocentric orbit{{cite web|url=http://www.n2yo.com/satellite/?s=32062|title=CBERS 2B Satellite details 2007-042A NORAD 32062|publisher=N2YO|date=25 January 2015 |access-date=25 January 2015}}
| orbit_regime = Sun-synchronous orbit
| orbit_periapsis = 773 km
| orbit_apoapsis = 774 km
| orbit_inclination = 98.60°
| orbit_period = 100.30 minutes
| apsis = gee
| instruments =
}}
China–Brazil Earth Resources Satellite 2B (CBERS-2B), also known as Ziyuan 1-2B, was a remote sensing satellite operated as part of the China–Brazil Earth Resources Satellite program between the Chinese Center for Resources Satellite Data and Application and Brazilian National Institute for Space Research. The third CBERS satellite to fly, it was launched by China in 2007 to replace CBERS-2.
Spacecraft
CBERS-2B was a {{convert|1450|kg|abbr=off|adj=on}} spacecraft built by the China Academy of Space Technology and based on the Phoenix-Eye 1 satellite bus. The spacecraft was powered by a single solar array, which provided 1100 watts of electricity for the satellite's systems.{{cite web|url=https://directory.eoportal.org/web/eoportal/satellite-missions/c-missions/cbers-1-2|title=CBERS-1 (China-Brazil Earth Resources Satellite) - 1st Generation Satellite Series|publisher=European Space Agency|work=Earth Observation Portal|access-date=1 December 2013}}{{cite web |url=http://www.cbers.inpe.br/ingles/satellites/description_cbers1_2_2b.php|title=CBERS-1, 2 and 2B Description|publisher=INPE|access-date=1 December 2013|archive-url=https://web.archive.org/web/20140120084318/http://www.cbers.inpe.br/ingles/satellites/description_cbers1_2_2b.php#|archive-date=2014-01-20|url-status=dead}} The 1.8 m x 2.0 m x 2.2 m, triaxially-stabilized spacecraft carries a low 20 m resolution, and a higher 2.5 m resolution camera. The data help in crop estimation, urban planning, water resource management, and military intelligence.{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2007-042A|title=Display: CBERS 2B 2007-042A|publisher=NASA|date=14 May 2020|access-date=26 July 2020}} {{PD-notice}}
The instrument suite aboard the CBERS-2B spacecraft consisted of three systems:
- Wide Field Imager (WFI) produced visible-light to near-infrared images with a resolution of {{convert|260|m|abbr=off|sp=us}} and a swath width of {{convert|890|km|abbr=off|sp=us}}.
- High-resolution CCD camera was used for multispectral imaging at a resolution of {{convert|20|m|abbr=on}} with a swath width of {{convert|113|km|abbr=on}}.
- High Resolution Camera (HRC) was a panchromatic imager with a resolution of {{convert|2.5|m|abbr=on}} and a swath width of {{convert|27|km|abbr=on}}.{{cite web |url=http://www.cbers.inpe.br/ingles/satellites/cameras_cbers1_2_2b.php|title=CBERS-1, 2 and 2B Cameras|publisher=INPE|access-date=1 December 2013|archive-url=https://web.archive.org/web/20140120084308/http://www.cbers.inpe.br/ingles/satellites/cameras_cbers1_2_2b.php#|archive-date=2014-01-20|url-status=dead}}
The HRC replaced the lower-resolution Infrared Multispectral Scanner instrument flown on earlier CBERS satellites.
Launch
A Long March 4B carrier rocket, operated by the China Academy of Launch Vehicle Technology (CALT), was used to launch CBERS-2B. The launch took place at 03:26:13 UTC on 19 September 2007, using Launch Complex 7 at the Taiyuan Satellite Launch Center (TLSC). The satellite was successfully placed into a Sun-synchronous orbit.{{cite web|url=http://www.ucsusa.org/assets/documents/nwgs/UCS_Satellite_Database_7-1-10.txt|title=UCS Satellite Database|publisher=Union of Concerned Scientists|access-date=1 December 2013|url-status=dead|archiveurl=https://web.archive.org/web/20100909133456/http://www.ucsusa.org/assets/documents/nwgs/UCS_Satellite_Database_7-1-10.txt|archive-date=9 September 2010}}
Last contact
References
{{Portal|Spaceflight}}
{{reflist}}
{{Orbital launches in 2007}}
{{CBERS}}
{{Ziyuan}}
Category:Spacecraft launched in 2007
Category:China–Brazil Earth Resources Satellite program
Category:Derelict satellites orbiting Earth