T.S. Kelso

CelesTrak has ephemeris-based SupGP data for all 29 satellites from the Starlink G10-41 launch (2026-041) atop a Falcon 9 rocket from Cape Canaveral on 2026-03-02 at 02:56:40 UTC: spaceflightnow.com/2026/03/01/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

2/ It also includes 137 Starlink satellites from the last 5 launches since 2026-02-24 (International Designators 2026-037, -038, -039, -040, & -041) that only have SupGP data. Note that these all use 9-digit launch nominals catalog numbers assigned by 18 SDS and provided by SpaceX.

1/ In today’s summary (celestrak.org/satcat/), these 141 active satellites include 4 lost ones with SupGP data (celestrak.org/NORAD/elemen...). The GP data for O3B MPOWER F10 is now 208 days old, even though the SupGP data is current within the past day (celestrak.org/NORAD/elemen...) & < 50 m RMS.

CelesTrak has ephemeris-based SupGP data for all 25 satellites from the Starlink G17-23 launch (2026-040) atop a Falcon 9 rocket from Vandenberg SFB on 2026-03-01 at 10:10:39 UTC: spaceflightnow.com/2026/03/01/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

Zooming the graphs to All gives a better idea of their orbital histories.

1/ COSMOS 2591-2594, launched 2025-08-21 from Plesetsk Cosmodrome (celestrak.org/satcat/table...), appear to be conducting VLEO operations at 280-289 km altitude. Graphs for each are linked in the Latest Data column of the table (e.g., celestrak.org/NORAD/elemen...).

4/ If you are just becoming aware, it's not too late to prepare. We will be providing tutorials soon to show how easy it can be to adapt your SGP4-based applications--or have your software developers do that for applications you depend upon.

3/ Users should expect that the default format will change from TLE to CSV when we reach Catalog Number 68999. Users will need to explicitly choose to ignore the warnings available since May 2020 that included alternatives do not requiring 5-digit catalog numbers.

2/ Only 221,621 requests were for other formats: JSON=115,138, CSV=99,797, XML=4,316, KVN=2,370. That's a mere 18%. With 2 million unique IP addresses on the site last month, many representing multiple users, a lot of people appear to be unprepared for what is to come, despite existing alternatives.

1/ Banners went up all over CelesTrak today because users continue to request GP & SupGP data in TLE formats. Of 1,200,556 requests on Feb 28, 95,675 are being redirected from deleted legacy files. Tens of thousands more are getting HTTP 404 errors.

We've been averaging 1,000 catalog numbers every 72 days since going over 64999 on 2025-07-29. We reached 67999 on 2026-02-26 with Starlink G6-108. At the current rate, we will pass 69999 around 2026-07-20. The time to prepare is at hand, if you haven't chosen a non-TLE format yet. CSV recommended!

2/ The table includes links to all of the specifics for how the numbers are determined and is dynamically generated. And there are links to a whole host of other related information. Please feel free to cite this data any time you want to help us get it right!

1/ We regularly see statistics showing the number of objects in Earth orbit and they are often woefully incorrect and lack specifics or citations. We now provide all of that information in one place on CelesTrak at celestrak.org/satcat/.

CelesTrak has ephemeris-based SupGP data for all 29 satellites from the Starlink G6-108 launch (2026-039) atop a Falcon 9 rocket from Cape Canaveral on 2026-02-27 at 12:16:10 UTC: spaceflightnow.com/2026/02/27/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

SKYNET 4E, launched 1999-02-26, has completed a full circuit of the GEO belt since circularizing its orbit well above GEO graveyard altitude o/a 2025-12-15. As it appears to have been decommissioned, the CelesTrak SATCAT has been updated: celestrak.org/NORAD/elemen....

CelesTrak has ephemeris-based SupGP data for 23 of 25 satellites from the Starlink G17-26 launch (2026-038) atop a Falcon 9 rocket from Vandenberg SFB on 2026-02-25 at 14:17:49 UTC: spaceflightnow.com/2026/02/25/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

CelesTrak has ephemeris-based SupGP data for all 29 satellites from the Starlink G6-110 launch (2026-037) atop a Falcon 9 rocket from Cape Canaveral on 2026-02-24 at 23:04:10 UTC: spaceflightnow.com/2026/02/24/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

CelesTrak has ephemeris-based SupGP data for all 28 satellites from the Starlink G6-104 launch (2026-036) atop a Falcon 9 rocket from Cape Canaveral on 2026-02-22 at 03:47:10 UTC: spaceflightnow.com/2026/02/21/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

CelesTrak has ephemeris-based SupGP data for all 25 satellites from the Starlink G17-25 launch (2026-035) atop a Falcon 9 rocket from Vandenberg SFB on 2026-02-21 at 09:04:19 UTC: spaceflightnow.com/2026/02/20/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

Now:

CelesTrak has ephemeris-based SupGP data for 11 of 29 satellites from the Starlink G10-36 launch (2026-034) atop a Falcon 9 rocket from Cape Canaveral on 2026-02-20 at 01:41:40 UTC: spaceflightnow.com/2026/02/19/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen.... More to come.

*Exact circumstances are difficult to determine due to poor track custody and anomalous maneuver detection on Dec 1.

ZHONGXING-6B, launched 2007-07-05, has completed a full circuit of the GEO belt since circularizing its orbit well above GEO graveyard altitude sometime in late November 2025.* As it appears to have been decommissioned, the CelesTrak SATCAT has been updated: celestrak.org/NORAD/elemen....

CelesTrak has ephemeris-based SupGP data for all 29 satellites from the Starlink G6-103 launch (2026-033) atop a Falcon 9 rocket from Cape Canaveral on 2026-02-16 at 07:59:40 UTC: spaceflightnow.com/2026/02/15/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

CelesTrak has GP data for 1 of an expected 2 objects from the launch (2026-028) of Elektro-L 5 atop a Proton-M rocket from Baikonur Cosmodrome on Feb 12 at 0852 UTC: tass.com/science/2085.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

CelesTrak has ephemeris-based SupGP data for all 24 satellites from the Starlink G17-13 launch (2026-032) atop a Falcon 9 rocket from Vandenberg SFB on 2026-02-15 at 01:59:59 UTC: spaceflightnow.com/2026/02/14/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

CelesTrak has GP data for 1 object from the launch (2026-031) of Crew Dragon 12 atop a Falcon 9 rocket from Cape Canaveral on Feb 13 at 1015 UTC: www.nasaspaceflight.com/2026/02/crew.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

18 SDS has cataloged 5 objects from the launch (2026-029) of USSF-87 atop a Vulcan rocket from Cape Canaveral on Feb 12 at 0922 UTC: spaceflightnow.com/2026/02/12/v.... SATCAT data can be found at: celestrak.org/satcat/table....

CelesTrak has ephemeris-based SupGP data for all 32 satellites from the Kuiper AE-01 launch (2026-030) atop an Ariane 6 rocket from Europe’s Spaceport in French Guiana on Feb 12 at 1645 UTC: newsroom.arianespace.com/arianespace-.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

CelesTrak has GP data for 8 of 9 objects from the launch (2026-027) of PRSC-E02 & 6 other satellites atop a Jielong-3 rocket from waters off Guangdong Province on Feb 12 at 0637 UTC: www.china-in-space.com/p/pakistani-.... Data for the launch can be found at: celestrak.org/NORAD/elemen....