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 100178. 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. Spread the word!
‑ TS
