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
2014-0439COSMOS 2251 DEBNORAD 37866 · 1993-036BPD · FragmentRussia—10 Sep 2014—Re-entered2014-0444COSMOS 2251 DEBNORAD 34322 · 1993-036NU · FragmentRussia—12 Sep 2014—Re-entered2014-0447COSMOS 2251 DEBNORAD 35068 · 1993-036AHX · FragmentRussia—15 Sep 2014—Re-entered2014-0448COSMOS 2251 DEBNORAD 36075 · 1993-036AYN · FragmentRussia—15 Sep 2014—Re-entered2014-0451COSMOS 2251 DEBNORAD 34917 · 1993-036ADN · FragmentRussia—16 Sep 2014—Re-entered2014-0452COSMOS 2251 DEBNORAD 35608 · 1993-036ANB · FragmentRussia—16 Sep 2014—Re-entered2014-0453COSMOS 2251 DEBNORAD 36455 · 1993-036BBE · FragmentRussia—16 Sep 2014—Re-entered2014-0455COSMOS 2251 DEBNORAD 35040 · 1993-036AHD · FragmentRussia—17 Sep 2014—Re-entered2014-0468COSMOS 2251 DEBNORAD 34888 · 1993-036ADB · FragmentRussia—25 Sep 2014—Re-entered2014-0477COSMOS 2251 DEBNORAD 36527 · 1993-036BCM · FragmentRussia—30 Sep 2014—Re-entered2014-0482COSMOS 2251 DEBNORAD 37509 · 1993-036BMN · FragmentRussia—3 Oct 2014—Re-entered2014-0485COSMOS 2251 DEBNORAD 35770 · 1993-036ARQ · FragmentRussia—4 Oct 2014—Re-entered2014-0486COSMOS 2251 DEBNORAD 38002 · 1993-036BRD · FragmentRussia—5 Oct 2014—Re-entered2014-0493COSMOS 2251 DEBNORAD 34558 · 1993-036UU · FragmentRussia—10 Oct 2014—Re-entered2014-0494COSMOS 2251 DEBNORAD 34581 · 1993-036VT · FragmentRussia—10 Oct 2014—Re-entered2014-0497COSMOS 2251 DEBNORAD 35768 · 1993-036ARN · FragmentRussia—12 Oct 2014—Re-entered2014-0502COSMOS 2251 DEBNORAD 34394 · 1993-036QK · FragmentRussia—15 Oct 2014—Re-entered2014-0503COSMOS 2251 DEBNORAD 35722 · 1993-036AQT · FragmentRussia—15 Oct 2014—Re-entered2014-0507COSMOS 2251 DEBNORAD 35470 · 1993-036ALQ · FragmentRussia—16 Oct 2014—Re-entered2014-0508COSMOS 2251 DEBNORAD 36468 · 1993-036BBT · FragmentRussia—16 Oct 2014—Re-entered
1,101 entries · page 22 of 56
Other break-ups