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
2011-0034COSMOS 2251 DEBNORAD 33767 · 1993-036Q · FragmentRussia—9 Feb 2011—Re-entered2011-0042COSMOS 2251 DEBNORAD 34137 · 1993-036LJ · FragmentRussia—16 Feb 2011—Re-entered2011-0047COSMOS 2251 DEBNORAD 34720 · 1993-036YN · FragmentRussia—21 Feb 2011—Re-entered2011-0049COSMOS 2251 DEBNORAD 36382 · 1993-036AZK · FragmentRussia—25 Feb 2011—Re-entered2011-0072COSMOS 2251 DEBNORAD 34406 · 1993-036QX · FragmentRussia—15 Mar 2011—Re-entered2011-0078COSMOS 2251 DEBNORAD 34311 · 1993-036NH · FragmentRussia—25 Mar 2011—Re-entered2011-0084COSMOS 2251 DEBNORAD 36444 · 1993-036BAT · FragmentRussia—30 Mar 2011—Re-entered2011-0088COSMOS 2251 DEBNORAD 34336 · 1993-036PJ · FragmentRussia—1 Apr 2011—Re-entered2011-0104COSMOS 2251 DEBNORAD 35607 · 1993-036ANA · FragmentRussia—11 Apr 2011—Re-entered2011-0111COSMOS 2251 DEBNORAD 34288 · 1993-036MJ · FragmentRussia—15 Apr 2011—Re-entered2011-0112COSMOS 2251 DEBNORAD 34443 · 1993-036SL · FragmentRussia—15 Apr 2011—Re-entered2011-0115COSMOS 2251 DEBNORAD 34305 · 1993-036NB · FragmentRussia—18 Apr 2011—Re-entered2011-0119COSMOS 2251 DEBNORAD 33985 · 1993-036FU · FragmentRussia—22 Apr 2011—Re-entered2011-0124COSMOS 2251 DEBNORAD 33780 · 1993-036V · FragmentRussia—26 Apr 2011—Re-entered2011-0125COSMOS 2251 DEBNORAD 36638 · 1993-036BFC · FragmentRussia—26 Apr 2011—Re-entered2011-0128COSMOS 2251 DEBNORAD 37090 · 1993-036BFL · FragmentRussia—27 Apr 2011—Re-entered2011-0133COSMOS 2251 DEBNORAD 35656 · 1993-036ANX · FragmentRussia—30 Apr 2011—Re-entered2011-0137COSMOS 2251 DEBNORAD 36619 · 1993-036BEH · FragmentRussia—4 May 2011—Re-entered2011-0139COSMOS 2251 DEBNORAD 35998 · 1993-036AWQ · FragmentRussia—8 May 2011—Re-entered2011-0152COSMOS 2251 DEBNORAD 33943 · 1993-036EY · FragmentRussia—16 May 2011—Re-entered
1,101 entries · page 5 of 56
Other break-ups