Every launch since Sputnik, and the satellites it carried
7,633 launches from 1957-10-04 to 2026-10-02, and 27,900 payloads, every one linked to the launch that carried it by the COSPAR launch number they share. With who uses and runs each satellite, where it is registered, and whether the US withholds its orbit.
launches.csvsatellites.csvData dictionaryCITATION.cff
How the links are made
Each satellite in CelesTrak's catalogue has a COSPAR id (1997-061A for Cassini), whose first part is its launch. Launch Library 2 records that number for every launch that reached orbit, and the two are joined on it, so no link is a guess by date or place. Who uses and runs each satellite comes from Jonathan McDowell's GCAT.
Citing
Osborne, M. (2026). Launches and the satellites they carried, 1957 to 2026 (Version 2026-10-06) [Dataset]. Zenodo. https://doi.org/10.5281/zenodo.23184904
Sources
Launch Library 2 by The Space Devs; CelesTrak's satellite catalogue; GCAT by Jonathan McDowell (CC-BY); Wikipedia articles through Wikidata.