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
2011-0452COSMOS 2251 DEBNORAD 34408 · 1993-036QZ · FragmentRussia—4 Dec 2011—Re-entered2011-0453COSMOS 2251 DEBNORAD 34466 · 1993-036TK · FragmentRussia—4 Dec 2011—Re-entered2011-0461COSMOS 2251 DEBNORAD 37319 · 1993-036BKK · FragmentRussia—9 Dec 2011—Re-entered2011-0463COSMOS 2251 DEBNORAD 34407 · 1993-036QY · FragmentRussia—10 Dec 2011—Re-entered2011-0465COSMOS 2251 DEBNORAD 36466 · 1993-036BBR · FragmentRussia—10 Dec 2011—Re-entered2011-0470COSMOS 2251 DEBNORAD 35725 · 1993-036AQW · FragmentRussia—11 Dec 2011—Re-entered2011-0473COSMOS 2251 DEBNORAD 37107 · 1993-036BGD · FragmentRussia—12 Dec 2011—Re-entered2011-0479COSMOS 2251 DEBNORAD 34580 · 1993-036VS · FragmentRussia—15 Dec 2011—Re-entered2011-0480COSMOS 2251 DEBNORAD 35599 · 1993-036AMS · FragmentRussia—15 Dec 2011—Re-entered2011-0481COSMOS 2251 DEBNORAD 33814 · 1993-036BF · FragmentRussia—16 Dec 2011—Re-entered2011-0482COSMOS 2251 DEBNORAD 36438 · 1993-036BAM · FragmentRussia—16 Dec 2011—Re-entered2011-0486COSMOS 2251 DEBNORAD 37497 · 1993-036BMA · FragmentRussia—17 Dec 2011—Re-entered2011-0488COSMOS 2251 DEBNORAD 36063 · 1993-036AYA · FragmentRussia—19 Dec 2011—Re-entered2011-0492COSMOS 2251 DEBNORAD 34027 · 1993-036HN · FragmentRussia—23 Dec 2011—Re-entered2011-0493COSMOS 2251 DEBNORAD 34740 · 1993-036ZJ · FragmentRussia—23 Dec 2011—Re-entered2011-0496COSMOS 2251 DEBNORAD 36440 · 1993-036BAP · FragmentRussia—25 Dec 2011—Re-entered2011-0499COSMOS 2251 DEBNORAD 36537 · 1993-036BCX · FragmentRussia—28 Dec 2011—Re-entered2012-0005COSMOS 2251 DEBNORAD 33803 · 1993-036AU · FragmentRussia—3 Jan 2012—Re-entered2012-0008COSMOS 2251 DEBNORAD 37525 · 1993-036BNE · FragmentRussia—4 Jan 2012—Re-entered2012-0021COSMOS 2251 DEBNORAD 35029 · 1993-036AGS · FragmentRussia—15 Jan 2012—Re-entered
1,101 entries · page 9 of 56
Other break-ups