| Auto: | all |
| CBERS-2B | |
| Insignia: | CBERS-2B patch.png |
| Mission Type: | Remote sensing |
| Operator: | CNSA / INPE[1] |
| Cospar Id: | 2007-042A |
| Satcat: | 32062 |
| Mission Duration: | 2 years (planned) (achieved) |
| Spacecraft Type: | CBERS |
| Spacecraft Bus: | Phoenix-Eye 1 |
| Manufacturer: | CAST |
| 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[2] |
| Launch Rocket: | Long March 4B |
| Launch Site: | Taiyuan Satellite Launch Center, LC-7 |
| Launch Contractor: | SAST |
| Last Contact: | 10 May 2010 |
| Orbit Epoch: | 19 September 2007 |
| Orbit Reference: | Geocentric orbit[3] |
| Orbit Regime: | Sun-synchronous orbit |
| Orbit Periapsis: | 773 km |
| Orbit Apoapsis: | 774 km |
| Orbit Inclination: | 98.60° |
| Orbit Period: | 100.30 minutes |
| Apsis: | gee |
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.[1] The third CBERS satellite to fly, it was launched by China in 2007 to replace CBERS-2.[2]
CBERS-2B was a 1450kg (3,200lb) 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 1100 watts of electricity for the satellite's systems.[4] [5] 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.[6]
The instrument suite aboard the CBERS-2B spacecraft consisted of three systems:
The HRC replaced the lower-resolution Infrared Multispectral Scanner instrument flown on earlier CBERS satellites.[1]
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).[2] The satellite was successfully placed into a Sun-synchronous orbit.[8]
The CBERS-2B spacecraft suffered a power system failure on 10 May 2010, leaving it unable to continue operations. It remains in orbit.[3]