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The Wayback Machine - http://web.archive.org/web/20260720091928/https://celestrak.org/satcat/
CelesTrak® Orbital Data Satellite Catalog
SOCRATES
Space Data Library
URGENT: We ran out of 5-digit catalog numbers with the addition of Saramago on 2026-07-11. We had estimated that to occur around 2026‑07‑12 back on 2026-05-09. The official USSF SATCAT is now at 100082. All newly cataloged objects will have 6-digit catalog numbers of 100000+ and GP data will not be available for them using the TLE format. CelesTrak developed new formats that removed the 5-digit catalog number limitation (and finally fixed the Y2K problem) in May 2020 and immediately began providing GP data in those formats for software developers. Please be sure to adhere to our usage policy when retrieving any CelesTrak data.
The same limitations apply to the legacy fixed-field SATCAT. That legacy format will continue to update but will only contain data for objects with catalog numbers below 70000. Be sure to follow @TSKelso on Bluesky for the latest updates, tutorials, and changes as we move forward.
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Current as of 2026 Jul 19 22:28:18 UTC (Day 201)
Latest Orbital Statistics for Earth Orbit SATCAT data current as of 2026-07-19 22:28:18 UTC18 SDS GP data current as of 2026-07-19 22:31:00 UTCSupGP data current as of 2026-07-20 08:47:43 UTC
Tracked Restricted LostTotal
Active Satellites16,061 3922816,481 Dead Satellites2,8016644 2,911 Rocket Bodies2,1986420 2,282 Debris10,3012112,00712,519 Unknown470451 All Objects*31,4087332,103 34,244
*There is additional GP data for 578 of the ~16,800 analyst satellitestracked by 18 SDS (USSF). There is also SupGP data for 12,366 active satellites.12,309 have GP data (76.6%) and another 57 are for active satellites that have been lost (despite having SupGP data) or are yet to be cataloged. There are 30,152 gaps in the SATCAT which may be associatedwith recently launched objects that have yet to be catalogued. Additional information can be found in the SATCAT Boxscore and the SATCAT Growth chart, as well as the Launch Boxscore.
Search the SATCAT
SATCAT Format Documentation (CSV and Legacy Text)
Raw SATCAT Data (CSV, Legacy Text)
SATCAT Boxscore & SATCAT Growth
Analyst Satellite Catalog(not included in SATCAT)
Launch BoxscoreBy year and launch site
SATCAT Discrepancy ReportList of differences between Space Track and CelesTrak SATCATs