CBERS-2

China–Brazil Earth Resources Satellite 2 (CBERS-2), also known as Ziyuan I-02 or Ziyuan 1B, was a remote sensing satellite operated as part of the China–Brazil Earth Resources Satellite programme between the China Centre for Resources Satellite Data and Application and Brazil's National Institute for Space Research.[1] The second CBERS satellite to fly, it was launched by China in 2003 to replace CBERS-1.[3]

CBERS-2
Mission typeRemote sensing
OperatorCNSA / INPE[1]
COSPAR ID2003-049A
SATCAT no.28057
Mission duration2 years[2]
Spacecraft properties
Spacecraft typeCBERS
BusPhoenix-Eye 1[1]
Launch mass1,450 kilograms (3,200 lb)[2]
Power1,100 watts[2]
Start of mission
Launch date21 October 2003, 03:16 (2003-10-21UTC03:16Z) UTC[3]
RocketChang Zheng 4B
Launch siteTaiyuan LC-7
End of mission
DisposalDecommissioned
DeactivatedLate 2007 (2008)
Orbital parameters
Reference systemGeocentric
RegimeSun-synchronous
Semi-major axis7,152.64 kilometres (4,444.44 mi)
Eccentricity0.0001886
Perigee altitude780 kilometres (480 mi)
Apogee altitude782 kilometres (486 mi)
Inclination98.17 degrees
Period100.33 minutes
Epoch1 December 2013, 03:03:10 UTC[4]
 

CBERS-2 was a 1,450-kilogram (3,200 lb) spacecraft built by the China Academy of Space Technology and based on the Phoenix-Eye 1 satellite bus.[1] The spacecraft was powered by a single solar array, which provided 1,100 watts of electricity for the satellite's systems.[2][5] The instrument suite aboard the CBERS-2 spacecraft consisted of three systems: the Wide Field Imager (WFI) produced visible-light to near-infrared images with a resolution of 260 metres (850 ft) and a swath width of 890 kilometres (550 mi); a high-resolution CCD camera was used for multispectral imaging at a resolution of 20 metres (66 ft) with a swath width of 113 kilometres (70 mi); the third instrument, the Infrared Multispectral Scanner (IMS), had a resolution of 80 metres (260 ft) and a swath width of 120 kilometres (75 mi).[6]

A Chang Zheng 4B carrier rocket, operated by the China Academy of Launch Vehicle Technology, was used to launch CBERS-2. The launch took place at 03:16 UTC on 21 October 2003, using Launch Complex 7 at the Taiyuan Satellite Launch Centre.[3] The satellite was successfully placed into a sun-synchronous orbit.[7]

Following the launch of CBERS-2B in 2007, CBERS-2 was retired from service.[2] As of 1 December 2013, the dericict satellite remains in orbit, with a perigee of 780 kilometres (480 mi), an apogee of 782 kilometres (486 mi), 98.17 degrees inclination and a period of 100.33 minutes. Its orbit has a semimajor axis of 7,152.64 kilometres (4,444.44 mi), and eccentricity of 0.0001886.[4]

References
  1. Krebs, Gunter. "CBERS 1, 2, 2B / ZY 1A, 1B, 1B2". Gunter's Space Page. Retrieved 1 December 2013.
  2. "CBERS-1 (China-Brazil Earth Resources Satellite) - 1st Generation Satellite Series". Earth Observation Portal. European Space Agency. Retrieved 1 December 2013.
  3. McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 1 December 2013.
  4. "CBERS 2 Satellite details 2003-049A NORAD 28057". N2YO. 1 December 2013. Retrieved 1 December 2013.
  5. "CBERS-1, 2 and 2B Description". INPE. Archived from the original on 20 January 2014. Retrieved 1 December 2013.
  6. "CBERS-1, 2 and 2B Cameras". INPE. Archived from the original on 20 January 2014. Retrieved 1 December 2013.
  7. "UCS Satellite Database". Union of Concerned Scientists. Archived from the original on 9 September 2010. Retrieved 1 December 2013.

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