Break-up record
Cosmos 2251
On 10 February 2009 the retired Russian satellite Cosmos 2251 collided with the working communications satellite Iridium 33, the first accidental collision between two intact satellites. 1,101 of its fragments are now entered in the Orbital Register.
1,101
Fragments on record
10 Feb 2009
Break-up
15 Dec 2015
Half down by
30 Aug 2026
Latest to come down
608
Still in orbit
Fragments coming down, month by month
Bars: per month · line: share of the cloud downFragments re-entered that monthShare of all 1,101 on record
The fragments
Every fragment on record
Each fragment has its own register entry and permanent number. Fragment pages are kept out of search results; this page carries them.
Entry no.ObjectCountryLaunchedEnded (UTC)In orbitHow it ended
2023-0901COSMOS 2251 DEBNORAD 35772 · 1993-036ARS · FragmentRussia—24 Apr 2023—Re-entered2023-0902COSMOS 2251 DEBNORAD 37990 · 1993-036BQR · FragmentRussia—24 Apr 2023—Re-entered2023-0938COSMOS 2251 DEBNORAD 34629 · 1993-036XA · FragmentRussia—27 Apr 2023—Re-entered2023-0941COSMOS 2251 DEBNORAD 35988 · 1993-036AWE · FragmentRussia—27 Apr 2023—Re-entered2023-0942COSMOS 2251 DEBNORAD 36450 · 1993-036BAZ · FragmentRussia—27 Apr 2023—Re-entered2023-0944COSMOS 2251 DEBNORAD 37521 · 1993-036BNA · FragmentRussia—27 Apr 2023—Re-entered2023-0986COSMOS 2251 DEBNORAD 37995 · 1993-036BQW · FragmentRussia—4 May 2023—Re-entered2023-1015COSMOS 2251 DEBNORAD 34013 · 1993-036GY · FragmentRussia—9 May 2023—Re-entered2023-1035COSMOS 2251 DEBNORAD 35039 · 1993-036AHC · FragmentRussia—11 May 2023—Re-entered2023-1039COSMOS 2251 DEBNORAD 38221 · 1993-036BTM · FragmentRussia—11 May 2023—Re-entered2023-1065COSMOS 2251 DEBNORAD 34747 · 1993-036ZR · FragmentRussia—16 May 2023—Re-entered2023-1093COSMOS 2251 DEBNORAD 34877 · 1993-036ACQ · FragmentRussia—23 May 2023—Re-entered2023-1129COSMOS 2251 DEBNORAD 40220 · 1993-036BUZ · FragmentRussia—31 May 2023—Re-entered2023-1177COSMOS 2251 DEBNORAD 35019 · 1993-036AGG · FragmentRussia—6 Jun 2023—Re-entered2023-1251COSMOS 2251 DEBNORAD 37314 · 1993-036BKE · FragmentRussia—18 Jun 2023—Re-entered2023-1295COSMOS 2251 DEBNORAD 38215 · 1993-036BTF · FragmentRussia—29 Jun 2023—Re-entered2023-1317COSMOS 2251 DEBNORAD 34853 · 1993-036ABX · FragmentRussia—7 Jul 2023—Re-entered2023-1319COSMOS 2251 DEBNORAD 35897 · 1993-036AUL · FragmentRussia—7 Jul 2023—Re-entered2023-1363COSMOS 2251 DEBNORAD 37325 · 1993-036BKR · FragmentRussia—18 Jul 2023—Re-entered2023-1470COSMOS 2251 DEBNORAD 34687 · 1993-036YH · FragmentRussia—10 Aug 2023—Re-entered
1,101 entries · page 38 of 56
Other break-ups