[Source: INPE CBERS home page, http://www.cbers.inpe.br/en/programas/cbers1-2.htm
The first satellite to be developed, CBERS-1, was launched with great success by the Chinese Long March 4B ... launcher, from the Taiyuan Launch Base, on Oct. 14, 1999. Launch occurred at 1:15 AM (Brasilia local time).
Two modules compose the satellite. The first one is the payload module, where 3 cameras are located (CCD Camera, IRMSS Camera and WFI Camera) and a Transponder for the Brazilian Environmental Data Collection System. The second one is the service module, containing the equipment for power supply, control, telecommunications and remaining functions necessary to the satellite operation.
Its orbit is Helios-synchronous, at a 778 km altitude. It performs about 14 revolutions a day and obtains a complete coverage of the Earth in 26 days.