CBERS-2B
| Mission type | Remote sensing |
|---|---|
| Operator | CNSA / INPE[1] |
| COSPAR ID | 2007-042A |
| SATCAT № | 32062 |
| Mission duration | 2 years planned[2] |
| Spacecraft properties | |
| Spacecraft type | CBERS |
| Bus | Phoenix-Eye 1[1] |
| Launch mass | 1,450 kilograms (3,200 lb)[2] |
| Power | 1,100 watts[2] |
| Start of mission | |
| Launch date | 19 September 2007, 03:26:13 UTC[3] |
| Rocket | Chang Zheng 4B |
| Launch site | Taiyuan LC-7 |
| End of mission | |
| Last contact | 10 May 2010 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Sun-synchronous |
| Semi-major axis | 7,138.59 kilometres (4,435.71 mi)[4] |
| Eccentricity | 0.0031332[4] |
| Perigee | 745 kilometres (463 mi)[4] |
| Apogee | 789 kilometres (490 mi)[4] |
| Inclination | 98.26 degrees[4] |
| Period | 100.04 minutes[4] |
| RAAN | 85.98 degrees[4] |
| Argument of perigee | 299.78 degrees[4] |
| Mean anomaly | 14.39 degrees[4] |
| Mean motion | 14.39[4] |
| Epoch | 25 January 2015, 03:39:25 UTC[4] |
| Revolution number | 38,590[4] |
China–Brazil Earth Resources Satellite 2B (CBERS-2B), also known as Ziyuan I-02B or Ziyuan 1B2, 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 third CBERS satellite to fly, it was launched by China in 2007 to replace CBERS-2.[3]
CBERS-2B 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-2B 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 High Resolution Camera (HRC) was a panchromatic imager with a resolution of 2.7 metres (8 ft 10 in) and a swath width of 27 kilometres (17 mi).[6] HRC replaced the lower-resolution Infrared Multispectral Scanner instrument flown on earlier CBERS satellites.[1]
A Chang Zheng 4B carrier rocket, operated by the China Academy of Launch Vehicle Technology, 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 Centre.[3] The satellite was successfully placed into a sun-synchronous orbit.[7]
CBERS-2B suffered a power system failure on 10 May 2010, leaving it unable to continue operations. As of 25 January 2015 it remains in orbit, with a perigee of 745 kilometres (463 mi), an apogee of 789 kilometres (490 mi), 98.26 degrees inclination and a period of 100.04 minutes. It has a semimajor axis of 7,138.59 kilometres (4,435.71 mi), and eccentricity of 0.0031332.[4]
References
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