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
2011-0153COSMOS 2251 DEBNORAD 34047 · 1993-036JJ · FragmentRussia—16 May 2011—Re-entered2011-0155COSMOS 2251 DEBNORAD 36458 · 1993-036BBH · FragmentRussia—17 May 2011—Re-entered2011-0156COSMOS 2251 DEBNORAD 35027 · 1993-036AGQ · FragmentRussia—18 May 2011—Re-entered2011-0160COSMOS 2251 DEBNORAD 35882 · 1993-036ATV · FragmentRussia—22 May 2011—Re-entered2011-0166COSMOS 2251 DEBNORAD 34973 · 1993-036AFC · FragmentRussia—26 May 2011—Re-entered2011-0169COSMOS 2251 DEBNORAD 33783 · 1993-036Y · FragmentRussia—30 May 2011—Re-entered2011-0171COSMOS 2251 DEBNORAD 34044 · 1993-036JF · FragmentRussia—31 May 2011—Re-entered2011-0175COSMOS 2251 DEBNORAD 36054 · 1993-036AXR · FragmentRussia—2 Jun 2011—Re-entered2011-0176COSMOS 2251 DEBNORAD 37128 · 1993-036BHA · FragmentRussia—2 Jun 2011—Re-entered2011-0179COSMOS 2251 DEBNORAD 35774 · 1993-036ARU · FragmentRussia—6 Jun 2011—Re-entered2011-0186COSMOS 2251 DEBNORAD 36056 · 1993-036AXT · FragmentRussia—18 Jun 2011—Re-entered2011-0188COSMOS 2251 DEBNORAD 36041 · 1993-036AXC · FragmentRussia—19 Jun 2011—Re-entered2011-0196COSMOS 2251 DEBNORAD 34587 · 1993-036VZ · FragmentRussia—29 Jun 2011—Re-entered2011-0210COSMOS 2251 DEBNORAD 35595 · 1993-036AMN · FragmentRussia—18 Jul 2011—Re-entered2011-0212COSMOS 2251 DEBNORAD 33895 · 1993-036CY · FragmentRussia—21 Jul 2011—Re-entered2011-0217COSMOS 2251 DEBNORAD 36545 · 1993-036BDF · FragmentRussia—28 Jul 2011—Re-entered2011-0224COSMOS 2251 DEBNORAD 34586 · 1993-036VY · FragmentRussia—4 Aug 2011—Re-entered2011-0225COSMOS 2251 DEBNORAD 37268 · 1993-036BHG · FragmentRussia—4 Aug 2011—Re-entered2011-0229COSMOS 2251 DEBNORAD 35665 · 1993-036APG · FragmentRussia—8 Aug 2011—Re-entered2011-0232COSMOS 2251 DEBNORAD 37117 · 1993-036BGP · FragmentRussia—10 Aug 2011—Re-entered
1,101 entries · page 6 of 56
Other break-ups