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
2025-0153COSMOS 2251 DEBNORAD 44983 · 1993-036BWR · FragmentRussia—16 Jan 2025—Re-entered2025-0157COSMOS 2251 DEBNORAD 34561 · 1993-036UX · FragmentRussia—17 Jan 2025—Re-entered2025-0158COSMOS 2251 DEBNORAD 36055 · 1993-036AXS · FragmentRussia—17 Jan 2025—Re-entered2025-0178COSMOS 2251 DEBNORAD 33843 · 1993-036CL · FragmentRussia—22 Jan 2025—Re-entered2025-0180COSMOS 2251 DEBNORAD 37547 · 1993-036BPC · FragmentRussia—22 Jan 2025—Re-entered2025-0198COSMOS 2251 DEBNORAD 34458 · 1993-036TB · FragmentRussia—25 Jan 2025—Re-entered2025-0199COSMOS 2251 DEBNORAD 35976 · 1993-036AVS · FragmentRussia—25 Jan 2025—Re-entered2025-0218COSMOS 2251 DEBNORAD 33919 · 1993-036DY · FragmentRussia—28 Jan 2025—Re-entered2025-0275COSMOS 2251 DEBNORAD 34674 · 1993-036XU · FragmentRussia—4 Feb 2025—Re-entered2025-0305COSMOS 2251 DEBNORAD 34675 · 1993-036XV · FragmentRussia—8 Feb 2025—Re-entered2025-0306COSMOS 2251 DEBNORAD 35464 · 1993-036ALJ · FragmentRussia—8 Feb 2025—Re-entered2025-0307COSMOS 2251 DEBNORAD 37504 · 1993-036BMH · FragmentRussia—8 Feb 2025—Re-entered2025-0359COSMOS 2251 DEBNORAD 36368 · 1993-036AYV · FragmentRussia—14 Feb 2025—Re-entered2025-0388COSMOS 2251 DEBNORAD 33817 · 1993-036BJ · FragmentRussia—21 Feb 2025—Re-entered2025-0389COSMOS 2251 DEBNORAD 34032 · 1993-036HT · FragmentRussia—21 Feb 2025—Re-entered2025-0391COSMOS 2251 DEBNORAD 38213 · 1993-036BTD · FragmentRussia—21 Feb 2025—Re-entered2025-0469COSMOS 2251 DEBNORAD 35903 · 1993-036AUS · FragmentRussia—28 Feb 2025—Re-entered2025-0470COSMOS 2251 DEBNORAD 37277 · 1993-036BHR · FragmentRussia—28 Feb 2025—Re-entered2025-0471COSMOS 2251 DEBNORAD 37977 · 1993-036BQC · FragmentRussia—28 Feb 2025—Re-entered2025-0473COSMOS 2251 DEBNORAD 40225 · 1993-036BVE · FragmentRussia—28 Feb 2025—Re-entered
1,101 entries · page 50 of 56
Other break-ups