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LAUNCH of Starlink Group 15-1 from Vandenberg Space Force Base at 0138 UTC Feb 23

submitted 1 day ago • 10 comments

www.smbc-comics.com/comic/murderer

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China's ZX-10R cataloged in a 211 x 35732 km x 27.7 deg geotransfer orbit, along with CZ-3B third stage.

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The recently discovered, much-hyped Asteroid 2024 YR4 now has almost zero chance of hitting Earth in 2032, according to the latest astronomical observations.

submitted 3 days ago • 228 comments

Life now feels like a Batman movie where the world is Gotham and Trump is the Tangerine Tyrant.

submitted 3 days ago • 0 comments

LAUNCH at 1211 UTC Feb 22 of China's Zhongxing-10R comms satelite on a CZ-3B from Xichang

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LAUNCH of Starlink Group 12-14 from Canaveral at 1519 UTC Feb 21

submitted 2 days ago • 10 comments

New Scientist magazine interviewed me about the Space Library www.youtube.com/watch?v=LKXr...

submitted 2 days ago • 7 comments

Interesting take by my friend Chanda... I agree with most of what they say, but think of 'astronomy' as the history and geography of the universe and 'astrophysics' as the rules of the game - instances vs classes; 'Betelgeuse' is astronomy, 'supergiant' is astrophysics; I find a useful distinction

submitted 3 days ago • 2 comments

Jonathan's Space Report No. 842 issued at planet4589.org/jsr.html

submitted 4 days ago • 2 comments

The Global Gen3 sat cataloged in a 466 x 476 km x 59.0 deg orbit; the Starlink Group 10-12 sats are in a 273 x 284 x 53.2 deg orbit.

submitted 4 days ago • 0 comments

Well, thats a first, even my own camera caugh this Falcon 9 upperstage re-entry, also featuring my @satnogs.bsky.social antenna :)

submitted 4 days ago • 4 comments

Suborbital LAUNCH at 0900 UTC Feb 19 of Minuteman 3 missile on operational test GT252 from silo LF09 at Vandenberg Space Force Base, California to Kwajalein.

submitted 4 days ago • 0 comments

The Falcon 9 second stage from the Starlink 11-4 launch failed to deorbit itself on Feb 2. It reentered over Northern Europe last night, with entry over the Irish Sea at 0343 UTC Feb 19 and the reentry track extending to Poland and Ukraine a couple of minutes later

submitted 4 days ago • 16 comments

LAUNCH at 2321 UTC of Starlink Group 10-12 from Canaveral

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LAUNCH at 2317 UTC Feb 18 of Rocket Lab's Electron from Mahia, carrying the first Gen3 imaging satellite for BlackSky Global

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Another slight change to GCAT is that the 'launch tag' for certain objects, particularly down cargo from space stations, has been changed to a new 'bogus' value. For example from 1998-067 to 1998-C01. The new value is read as 'unknown launch sometime in or later than 1998'

submitted 8 days ago • 1 comment

LAUNCH at 0614 UTC Feb 15 of Starlink Group 12-8 from Canaveral

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GCAT v1.6.0, with the Launch_Tag field in the object catalogs, is now live at planet4589.org/space/gcat . Thanks to @comspoc.bsky.social folks for suggesting it.

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From Ben @gambleonit on X: Ep 114 of Podcast is live! Chatted to planet4589 about space tracking & his UK library move. Tune in to learn about the significance of his work, the future of space cataloging, and how you can contribute to preserving space history! podcasts.apple.com/gb/podcast/j...

submitted 8 days ago • 1 comment

Jonathan McDowell has painstakingly amassed one of the world's largest collections on the space industry 🚀 @planet4589.bsky.social is now retiring, after four decades, and considering the future of his collection. We spoke all things space for @newscientist www.newscientist.com/article/2468...

submitted 9 days ago • 2 comments

To provide a simple key to tie the objects in the GCAT object catalogs to the launches in the GCAT launch lists, I'll be rolling out a new Launch_Tag field in the object catalogs in the near future. Stay tuned! (4/4)

submitted 9 days ago • 0 comments

In GCAT I have a chain of 'parent objects' that can be followed to determine the actual launch, but it's a bit arcane. (3/4)

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For example, all objects deployed from the ISS are assigned to launch 1998-067, rather than to the launch they actually went up on. Object 1998-067WM (BurstCube) was actually on launch 2024-054 (Dragon SpX-30) (2/4)

submitted 9 days ago • 0 comments

The international designation applied to satellites by US Space Force, e.g. 2025-031V, is meant to indicate the launch that put up the satellite (e.g. 2025-031) and the piece number within that launch (in this example, piece V). But this isn't entirely robust: (1/n)

submitted 9 days ago • 0 comments

Meanwhile, on or before Jan 22, D-Orbit's ION SCV Amazing Antonius deployed LOGSATS-2 and ION SCV Eminent Emmanual deployed 7 PocketQubes using AlbaOrbital deployers

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A month after launch, TLEs are now coming in for the Transporter-12 satellites. Also, ImpulseSpace deployed the BlueBon and Fossasat payloads from the LEO Express Mira tug on around Jan 27 and Feb 2.

submitted 9 days ago • 0 comments

I appreciate the support from @comspoc.bsky.social - check out their spacebook.com site!

submitted 11 days ago • 0 comments