Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor
Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor is a space observatory composed of a constellation of two X-ray and gamma-ray all-sky observing small satellites, called GECAM A and GECAM B, for research in electromagnetic counterparts of gravitational waves. It was launched on 9 December 2020 from the Xichang Satellite Launch Center at 20:14 UTC by a Long March 11 rocket. GECAM will focus on detecting electromagnetic counterparts of gravitational waves. In addition to signals from GWs, the observatory studies Ultra-long GRBs, X-ray Flashes, X-ray-rich GRBs, Magnetars and Terrestrial Gamma-ray Flashes.