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CelesTrak has post-deployment SupGP data for the #Transporter-18 launch from Vandenberg SFB on 2026-10-01 at 18:32:00.103 UTC: celestrak.org/NORAD/elemen.... Deployment of 69 satellites occurred 2026-10-01 19:26:17.523 UTC until 2026-10-01 19:37:10.623 UTC.

021

T.S. Kelso @tskelso.bsky.social · 01/10/2026

18 SDS has cataloged 17 objects from the launch (2026-214) of USSF-259 atop a Falcon 9 rocket from Vandenberg SFB on Sep 17 at 0107 UTC: spaceflightnow.com/2026/09/15/l.... SATCAT data can be found at: celestrak.org/satcat/table....

020

T.S. Kelso @tskelso.bsky.social · 29/09/2026

CelesTrak has pre-launch SupGP data for the #Transporter-18 launch from Vandenberg SFB on 2026-10-01 at 18:17:59.990 UTC: celestrak.org/NORAD/elemen.... Deployment of 70 satellites is set to occur 2026-10-01 19:12:24.250 UTC until 2026-10-01 19:23:17.350 UTC.

043

T.S. Kelso @tskelso.bsky.social · 28/09/2026

CelesTrak has ephemeris-based SupGP data for all 26 satellites from the Starlink G31-1 launch (2026-225) atop a Starship rocket from Starbase on 2026-09-28 at 12:48:59 UTC: spaceflightnow.com/2026/09/28/s.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

1101

T.S. Kelso @tskelso.bsky.social · 26/09/2026

CelesTrak has GP data for 3 objects from the launch (2026-223) of StriX-11 atop an Electron rocket from Māhia Peninsula, NZ on Sep 26 at 0039 UTC: rocketlabcorp.com/updates/miss.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

110

T.S. Kelso @tskelso.bsky.social · 26/09/2026

CelesTrak has GP data for 1 of 6 objects from the launch (2026-222) of 3 Yaogan-40 Group 04 satellites atop a Long March-6A rocket from Taiyuan Satellite Launch Center on Sep 24 at 0846 UTC: www.china-in-space.com/p/fourth-yao.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 24/09/2026

CelesTrak has GP data for 11 objects from the launch (2026-221) of 9 Guowang satellites atop a Long March-8A rocket from Wenchang Space Launch Site on Sep 23 at 1332 UTC: www.china-in-space.com/p/guowang-ex.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 20/09/2026

CelesTrak has GP data for 6 of 10 objects from the launch (2026-220) of Chaozhisuan-1 plus 8 other satellites atop a Lijian-1 rocket from Jiuquan Satellite Launch Center on Sep 20 at 0403 UTC: www.china-in-space.com/p/new-orbita.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

000

T.S. Kelso @tskelso.bsky.social · 20/09/2026

18 SDS has cataloged 23 objects from the launch (2026-206) of USSF-153 atop a Falcon 9 rocket from Vandenberg SFB on Sep 10 at 1542 UTC: spaceflightnow.com/2026/09/09/l.... SATCAT data can be found at: celestrak.org/satcat/table....

010

T.S. Kelso @tskelso.bsky.social · 20/09/2026

CelesTrak has ephemeris-based SupGP data for 25 of 27 satellites from the Starlink G15-27 launch (2026-219) atop a Falcon 9 rocket from Vandenberg SFB on 2026-09-20 at 01:47:00 UTC: spaceflightnow.com/2026/09/19/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 20/09/2026

CelesTrak has GP data for 4 objects from the launch (2026-218) of PIESAT-2 13 through 16 atop a Long March-2D rocket from Taiyuan Satellite Launch Center on Sep 19 at 1050 UTC: www.china-in-space.com/p/commercial.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 20/09/2026

CelesTrak has GP data for 3 objects from the launch (2026-217) of StriX-10 atop an Electron rocket from Māhia Peninsula, NZ on Sep 19 at 0322 UTC: www.space.com/space-explor.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 20/09/2026

CelesTrak has GP data for 2 objects from the launch (2026-216) of COSMOS 2620 [GLONASS-K] atop a Soyuz-2.1b rocket from Plesetsk Cosmodrome on Sep 17 at 1650 UTC: tass.com/science/2189.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

001

T.S. Kelso @tskelso.bsky.social · 18/09/2026

CelesTrak has GP data for 3 objects from the launch (2026-215) of TIANYI-51 & -52 atop a Kuaizhou-11 rocket from Jiuquan Satellite Launch Center on Sep 17 at 0235 UTC: www.china-in-space.com/p/expace-del.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 18/09/2026

CelesTrak has GP data for 1 of 9+ objects from the launch (2026-213) of 9 Guowang satellites atop a Long March-12 rocket from Wenchang Space Launch Site on Sep 17 at 0032 UTC: www.china-in-space.com/p/guowang-su.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 17/09/2026

CelesTrak has GP data for 1 of 9+ objects from the launch (2026-211) of 8 Qianfan satellites atop a Gravity-1 rocket from the Yellow Sea Launch Area on Sep 15 at 2200 UTC: www.china-in-space.com/p/sea-launch.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 17/09/2026

CelesTrak has GP data for 2 objects from the launch (2026-212) of PROGRESS-MS 35 atop a Soyuz-2.1b rocket from Baikonur Cosmodrome on Sep 16 at 1333 UTC: tass.com/science/2188.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 16/09/2026

CelesTrak has GP data for 4 of 10+ objects from the launch (2026-210) of 10 Qianfan satellites atop a Zhuque-2E rocket from Jiuquan Satellite Launch Center on Sep 15 at 0626 UTC: www.china-in-space.com/p/qianfan-re.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 16/09/2026

CelesTrak has GP data for 3 objects from the launch (2026-209) of Sentinel-3C & FLEX atop a Vega C rocket from Europe’s Spaceport in French Guiana on Sep 15 at 0121 UTC: www.esa.int/Applications.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 14/09/2026

CelesTrak has GP data for 3 objects from the launch (2026-208) of O3b mPOWER F11, F12, & F13 atop a Falcon 9 rocket from Cape Canaveral on Sep 13 at 1849 UTC: spaceflightnow.com/2026/09/13/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 12/09/2026

CelesTrak has GP data for 3 objects from the launch (2026-207) of BlackSky Gen-3 Mission 5 (Global-35) atop an Electron rocket from Māhia Peninsula, NZ on Sep 11 at 0328 UTC: rocketlabcorp.com/updates/miss.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

150

T.S. Kelso @tskelso.bsky.social · 11/09/2026

CelesTrak has GP data for 7 objects from the launch (2026-205) of Yaogan-53 01-03 & Yaogan-56 01-03 atop a Long March-4B rocket from Jiuquan Satellite Launch Center on Sep 10 at 0900 UTC: www.china-in-space.com/p/six-yaogan.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

040

T.S. Kelso @tskelso.bsky.social · 07/09/2026

CelesTrak has ephemeris-based SupGP data for all 27 satellites from the Starlink G15-24 launch (2026-204) atop a Falcon 9 rocket from Vandenberg SFB on 2026-09-06 at 14:26:54 UTC: spaceflightnow.com/2026/09/05/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 07/09/2026

CelesTrak has GP data for 6 objects from the launch (2026-203) of 6 payloads atop a Spectrum rocket from Andøya Spaceport on Sep 5 at 2012 UTC: arstechnica.com/space/2026/0.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 05/09/2026

CelesTrak has GP data for 2 objects from the launch (2026-202) of EOS-05 (GISAT-1A) atop a GSLV-Mk II rocket from Satish Dhawan Space Centre on Sep 3 at 2125 UTC: theindianeye.com/2026/09/04/e.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

251

T.S. Kelso @tskelso.bsky.social · 03/09/2026

CelesTrak has GP data for 3 objects from the launch (2026-201) of StriX-9 atop an Electron rocket from Māhia Peninsula, NZ on Sep 2 at 1201 UTC: rocketlabcorp.com/missions/lau.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 03/09/2026

CelesTrak has ephemeris-based SupGP data for all 27 satellites from the Starlink G15-23 launch (2026-200) atop a Falcon 9 rocket from Vandenberg SFB on 2026-09-02 at 08:42:12 UTC: spaceflightnow.com/2026/09/01/s.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 02/09/2026

After days of work, CelesTrak should now be operating normally again. We significantly upgraded our ability to send thousands of abusive IP addresses to the firewall in minutes (if needed), preventing that behavior from impacting the hundreds of thousands of users relying on CelesTrak each day.

090

T.S. Kelso @tskelso.bsky.social · 02/09/2026

COMS 1, launched 2010-06-26, has completed a full circuit of the GEO belt since circularizing its orbit well above GEO graveyard altitude o/a 2026-06-12. As it appears to have been decommissioned, the CelesTrak SATCAT has been updated: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 31/08/2026

For those wanting to track the NGRST Falcon Heavy upper stage, SpaceX asked us if we could put this online. This is a temporary file, but SpaceX is interested in making this data available in the future. This is CATNR 100533/2026-199B/FALCON HEAVY R/B (not 2026-200A): celestrak.org/pub/mission_...

171

T.S. Kelso @tskelso.bsky.social · 31/08/2026

CelesTrak is now back online after spending a couple of hours significantly ramping up our firewall handling. Once that was done, we sent 4,000+ IP addresses to firewall in a couple of minutes instead of many hours. That nips the user agent stuff in the bud instead of causing havoc. Stay tuned!

0101

T.S. Kelso @tskelso.bsky.social · 31/08/2026

1/ CelesTrak is offline again as we work to send another 4,500+ IPs using code with HTTP_USER_AGENT: Deno/2.1.4 (variant; SupabaseEdgeRuntime/1.74.3) to the firewall.   *WE NEED YOUR HELP* to find whoever wrote this code and get them to turn it off or CelesTrak will continue to be unusable.

11126

T.S. Kelso @tskelso.bsky.social · 31/08/2026

CelesTrak has GP data for 1 object from the launch (2026-199) of the Roman Space Telescope atop a Falcon Heavy rocket from Cape Canaveral on Aug 30 at 1126 UTC: www.nasa.gov/news-release.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

260

T.S. Kelso @tskelso.bsky.social · 31/08/2026

CelesTrak has GP data for 2 objects from the launch (2026-198) of MTG-I2 atop an Ariane 6 rocket from Europe’s Spaceport in French Guiana on Aug 27 at 2011 UTC: www.esa.int/Applications.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 30/08/2026

If you're wondering why you often can't get to CelesTrak lately, it is because we are dealing with a surge of users using software that blatantly violates our usage policy (celestrak.org/usage-policy...). We are working to clean up the mess, but they are making the site unusable for everyone.

celestrak.org

CelesTrak: Usage Policy

Users need to comply with our guidelines to minimize overuse of CelesTrak, as described at:

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T.S. Kelso @tskelso.bsky.social · 28/08/2026

18 SDS has cataloged 23 objects from the launch (2026-186) of USSF-366 atop a Falcon 9 rocket from Vandenberg SFB on Aug 16 at 0150 UTC: spaceflightnow.com/2026/08/15/l.... SATCAT data can be found at: celestrak.org/satcat/table.... No GP data currently available.

020

T.S. Kelso @tskelso.bsky.social · 27/08/2026

CelesTrak has ephemeris-based SupGP data for all 27 satellites from the Starlink G15-22 launch (2026-197) atop a Falcon 9 rocket from Vandenberg SFB on 2026-08-26 at 09:35:11 UTC: spaceflightnow.com/2026/08/25/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 26/08/2026

CelesTrak has GP data for 3 of 7+ objects from the launch (2026-195) of 7 satellites atop a Long March-6C rocket from Taiyuan Satellite Launch Center on Aug 25 at 0321 UTC: www.china-in-space.com/p/thai-educa.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

072

T.S. Kelso @tskelso.bsky.social · 26/08/2026

CelesTrak has ephemeris-based SupGP data for all 29 satellites from the Starlink G10-49 launch (2026-196) atop a Falcon 9 rocket from Cape Canaveral on 2026-08-25 at 09:33:38 UTC: spaceflightnow.com/2026/08/24/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 26/08/2026

CelesTrak has GP data for 2 objects from the launch (2026-194) of GLONASS-K1 19L atop a Soyuz-2.1b rocket from Plesetsk Cosmodrome on Aug 24 at 0240 UTC: www.russianspaceweb.com/spacecraft-m.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

061

T.S. Kelso @tskelso.bsky.social · 22/08/2026

CelesTrak has ephemeris-based SupGP data for all 27 satellites from the Starlink G15-20 launch (2026-193) atop a Falcon 9 rocket from Vandenberg SFB on 2026-08-22 at 07:25:16 UTC: spaceflightnow.com/2026/08/21/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 21/08/2026

CelesTrak has ephemeris-based SupGP data for 21 of 29 satellites from the Starlink G10-39 launch (2026-192) atop a Falcon 9 rocket from Cape Canaveral on 2026-08-21 at 15:14:22 UTC: spaceflightnow.com/2026/08/20/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 21/08/2026

CelesTrak has GP data for 3 objects from the launch (2026-191) of QPS-SAR-18 atop an Electron rocket from Māhia Peninsula, NZ on Aug 20 at 1304 UTC: i-qps.net/en/news/3974/. Data for the launch can be found at: celestrak.org/NORAD/elemen....

020

T.S. Kelso @tskelso.bsky.social · 21/08/2026

CelesTrak has GP data for 1 object from the launch (2026-189) of Honghu-03 atop a Zhuque-3 rocket from Jiuquan Satellite Launch Center on Aug 18 at 2335 UTC: www.china-in-space.com/p/landspace-.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 20/08/2026

CelesTrak has ephemeris-based SupGP data for all 24 satellites from the Starlink G17-50 launch (2026-190) atop a Falcon 9 rocket from Vandenberg SFB on 2026-08-19 at 04:01:07 UTC: spaceflightnow.com/2026/08/18/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

031

T.S. Kelso @tskelso.bsky.social · 20/08/2026

CelesTrak has GP data for 7 of 10 objects from the launch (2026-187) of 9 GuoWang satellites atop a Long March-12 rocket from Wenchang Space Launch Site on Aug 16 at 0410 UTC: www.china-in-space.com/p/guowang-st.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

010

T.S. Kelso @tskelso.bsky.social · 17/08/2026

CelesTrak has GP data for 2 of 4 objects from the launch (2026-188) of SEO atop a Long March-2C rocket from Taiyuan Satellite Launch Center on Aug 17 at 0302 UTC: www.china-in-space.com/p/china-plac.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

060

T.S. Kelso @tskelso.bsky.social · 17/08/2026

CelesTrak has GP data for 8 objects from the launch (2026-185) of Globalstar 2-R Mission 1 atop a Falcon 9 rocket from Cape Canaveral on Aug 16 at 0112 UTC: spaceflightnow.com/2026/08/15/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

030

T.S. Kelso @tskelso.bsky.social · 14/08/2026

SKYNET 4C, launched 1990-08-30, has completed a full circuit of the GEO belt since circularizing its orbit well above GEO graveyard altitude o/a 2026-07-02. As it appears to have been decommissioned, the CelesTrak SATCAT has been updated: celestrak.org/NORAD/elemen....

050

T.S. Kelso @tskelso.bsky.social · 13/08/2026

CelesTrak has ephemeris-based SupGP data for all 24 satellites from the Starlink G17-49 launch (2026-184) atop a Falcon 9 rocket from Vandenberg SFB on 2026-08-12 at 04:46:47 UTC: spaceflightnow.com/2026/08/11/l.... Data for the launch can be found at: celestrak.org/NORAD/elemen....

140