| CBERS-1 | |
| Insignia: | CBERS-1 patch.png |
| Mission Type: | Remote sensing |
| Operator: | CNSA / INPE[1] |
| Website: | CBERS |
| Cospar Id: | 1999-057A |
| Satcat: | 25940 |
| Mission Duration: | 2 years[2] |
| Spacecraft Type: | CBERS |
| Spacecraft Bus: | Phoenix-Eye 1 |
| Launch Mass: | 1450kg (3,200lb) |
| Power: | 1,100 watts |
| Launch Date: | UTC[3] |
| Launch Rocket: | Chang Zheng 4B |
| Launch Site: | Taiyuan LC-7 |
| Disposal Type: | Decommissioned |
| Deactivated: | [4] |
| Orbit Epoch: | 30 November 2013, 20:57:46 UTC[5] |
| Orbit Reference: | Geocentric |
| Orbit Regime: | Sun-synchronous |
| Orbit Periapsis: | 779km (484miles) |
| Orbit Apoapsis: | 785km (488miles) |
| Orbit Inclination: | 98.34 degrees |
| Orbit Semimajor: | 7153.45km (4,444.95miles) |
| Orbit Eccentricity: | 0.0004025 |
| Orbit Period: | 100.35 minutes |
| Apsis: | gee |
China–Brazil Earth Resources Satellite 1 (CBERS-1), also known as Ziyuan I-01 or Ziyuan 1A (ZY 1,[6] ZY 1A), is a remote sensing satellite which was operated as part of the China–Brazil Earth Resources Satellite program between the China National Space Administration and Brazil's National Institute for Space Research.[1] The first CBERS satellite to fly, it was launched by China in 1999.[3]
CBERS-1 was a 1450adj=onNaNadj=on 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, providing 1,100 watts of electricity for the satellite's systems.[2] [7] The instrument suite aboard the CBERS-1 spacecraft consisted of three systems: the Wide Field Imager (WFI) produced visible-light to near-infrared images with a resolution of and a swath width of 890km (550miles); a high-resolution CCD camera was used for multispectral imaging at a resolution of with a swath width of 113km (70miles); the third instrument, the Infrared Multispectral Scanner (IMS), had a resolution of and a swath width of .[8]
A Chang Zheng 4B carrier rocket, operated by the China Academy of Launch Vehicle Technology, was used to launch CBERS-1. The launch took place at 03:15 UTC on 14 October 1999, using Launch Complex 7 at the Taiyuan Satellite Launch Centre.[3] The satellite was successfully placed into a Sun-synchronous orbit.
CBERS-1 was decommissioned in September 2003, almost four years after launch.[4] The derelict satellite remains in orbit; as of 30 November 2013 it is in an orbit with a perigee of 779km (484miles), an apogee of 785km (488miles), 98.34 degrees inclination and a period of 100.35 minutes. The orbit has a semimajor axis of 7153.45km (4,444.95miles), and eccentricity of 0.0004025.[5]