GCAT: General Catalog of Artificial Space Objects

Jonathan C. McDowell

Object Catalogs

GCAT Release 1.7.0 (2025 Mar 18) | Data Update 2025 Mar 25

Active Catalog Column Descriptions


The active catalog lists payloads which are or may be still transmitting.


However, I only infrequently update the active/not-active status of satellites and in any case the status is often a guess, if the satellite does not actively manuever.


The fields in this file are all simply copied from satcat and psatcat, for full explanation see the documentation for those files.