SVOM

SVOM (Space Variable Objects Monitor) is a joint mission between China's National Space Administration (CNSA) and Chinese Academy of Sciences (CAS), and France's CNES - the first astronomical satellite co-developed by the two countries. Carrying instruments across X-ray, gamma-ray, and optical bands, it was designed to detect, localize, and rapidly characterize gamma-ray bursts. Its Gamma Ray Monitor completed in-orbit tests within days of launch and detected its first gamma-ray burst (GRB 240627B) on 27 June 2024.

CATCH 1 (Chasing All Transients Constellation Hunters 1) flew as a secondary payload. The Chinese microsatellite is the first prototype for a planned 126-satellite X-ray constellation intended to conduct follow-up observations of high-energy transient events.