#GCAT
gcat
October 23, 2024 at 6:08 PM
(Nov 10th 2021)
daily goober #35 alt
GCAT
November 17, 2024 at 8:25 AM
Space Force has issued 200 belated 'decay notices' for space debris objects which reentered and burned up over the past 10 years but which hadn't had reentry dates issued by them. I have now updated GCAT planet4589.org/space/gcat accordingly.
Jonathan's Space Report | GCAT
Jonathan McDowell's new homepage
planet4589.org
April 10, 2025 at 1:24 AM
Thread: One of the ways that GCAT planet4589.org/space/gcat goes a little deeper than most space object catalogues is the fact that when possible I give the serial numbers of things like launch vehicles.
Jonathan's Space Report | GCAT
Jonathan McDowell's new homepage
planet4589.org
March 6, 2025 at 4:59 AM
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.
Jonathan's Space Report | GCAT
Jonathan McDowell's new homepage
planet4589.org
February 15, 2025 at 4:49 AM
GCAT planet4589.org/space/gcat updated with the newly cataloged S100000 Saramago satellite in the file planet4589.org/space/gcat/d... which contains US catalog numbers 100000 and up.
Jonathan's Space Report | GCAT
Jonathan McDowell's new homepage
planet4589.org
July 11, 2026 at 2:10 PM
[1/2]

GCat with Xiao Bien's tail
December 31, 2024 at 10:19 AM
GCAT updates will be postponed for a few days while I have fun breaking - er I mean upgrading - the underlying software
November 5, 2025 at 12:18 AM
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)
February 14, 2025 at 6:45 AM
planet4589.org/space/gcat now updated with the 55 satellites from today's Soyuz launch.
Jonathan's Space Report | GCAT
Jonathan McDowell's new homepage
planet4589.org
November 5, 2024 at 4:29 AM
Uaimh na gCat
For Saturday #caturday: Owneynagat (cave of the cats / cave of Cruachu) near Rathcroghan co. Roscommon; associated with the otherworld in early Irish tales; it is a very dark cave with a manmade entrance, which includes an intriguing ogam stone; have to admit I only got partway down the passage....
December 14, 2024 at 2:34 PM
Interim updates made to GCAT and the Satcon pages; still some details to fill in over the next couple days.
Completed a successful visit to London, making slow but steady progress on my relocation project. Back in Boston tomorrow, will update the web site over the weekend.
December 12, 2025 at 4:17 AM
I am counting this as 'secondary payload unusable orbit' per planet4589.org/space/gcat/w... and scoring the success value as 0.85.
Jonathan's Space Report | GCAT
Jonathan McDowell's new homepage
planet4589.org
July 10, 2024 at 12:13 AM
Holy crap it’s the gcat from Homestuck or whatever
May 8, 2025 at 7:26 PM
LAUNCH of Starlink 6-80 and of the Fram-2 private astronaut mission. Due to pressure of work I won't be able to update GCAT/JSR till late tomorrow.
April 1, 2025 at 3:21 AM
(3/n) Until now, serial numbers for SpaceX Falcon 9 rockets have not been publicly available and I've just used a running number (basically, launch order). Thanks to a kind source at SpaceX this situation has been rectified, and GCAT has now been updated accordingly.
March 6, 2025 at 5:00 AM
The same document gives an impact location, which allows me to solve for the planned orbital inclination too, another thing I didn't have before for this launch. GCAT will be updated accordingly tomorrow. Still improving 1964 data entries!
Does anyone have super algorithms to sharpen up this image? I *think* the crucial line B says "08 / 1906:19 Z", yes? (from declassified NRO document about the Oct 1964 Atlas Agena launch failure, only good source I have found for the launch time)
March 25, 2026 at 12:57 AM
I miss the old gcat
set on his goals gcat
one point sixteen gcat
5 years for a project gcat

I hate the new gcat
pack in 3 weeks gcat
actually dropping gcat
"don't care bout versions" gcat
September 24, 2026 at 10:08 PM
LAUNCH of SpaceX Transporter 16 rideshare mission at 1102 UTC Mar 30. Over 100 payloads aboard. GCAT will be updated later today I hope
March 30, 2026 at 4:05 PM
Uhbxnxm gcat
August 12, 2023 at 12:42 AM
“FOXP4 gene identified in the first large-scale genetic study on Long COVID with participation of the GCAT”

‘New insights into the complexities of Long COVID have been brought to light, thanks to an international collaborative effort..’

www.eurekalert.org/news-release...
FOXP4 gene identified in the first large-scale genetic study on Long COVID with participation of the GCAT
New insights into the complexities of Long COVID have been brought to light, thanks to an international collaborative effort with the participation of researchers from GCAT|Genomes for life, a strateg...
www.eurekalert.org
May 22, 2025 at 11:12 PM
Once in Bromley by Jun 1 or so, I'll be using Saturn until the shipping stuff arrives and is unpacked and I get Aquila running again. Only then will I have a fully operational battle... er I mean JSR/GCAT production environment.
May 21, 2026 at 12:53 AM
Oíche Shamhna shona duit! 🐈‍⬛

Here's a short moment captured at the entrance to Oweynagat, Uaimh na gCat (Cave of the Cats) in the ancient landscape of Rathcroghan, Roscommon.

There are many tales about the dark depths of the cave, once described as the 'Gateway to Hell' in the Book of Leinster.
October 31, 2025 at 1:52 PM