The China Aerospace Science and Technology Corporation (CASC) is the main contractor for the Chinese space program. It is state-owned and has a number of subordinate entities which design, develop and manufacture a range of spacecraft, launch vehicles, strategic and tactical missile systems, and ground equipment. It was officially established in July 1999 as part of a Chinese government reform drive, having previously been one part of the former China Aerospace Corporation. Various incarnations of the program date back to 1956.
Tsinghua-1 or Hangtian Qinghua 1 is the first demonstrator for the Disaster Monitoring Constellation and carries multi-spectral Earth imaging cameras providing 39-meter nadir ground resolution in 3 spectral bands.