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
2025-0014COSMOS 2251 DEBNORAD 34386 · 1993-036QB · FragmentRussia—3 Jan 2025—Re-entered2025-0015COSMOS 2251 DEBNORAD 34552 · 1993-036UN · FragmentRussia—3 Jan 2025—Re-entered2025-0016COSMOS 2251 DEBNORAD 35431 · 1993-036AJZ · FragmentRussia—3 Jan 2025—Re-entered2025-0018COSMOS 2251 DEBNORAD 35584 · 1993-036AMB · FragmentRussia—3 Jan 2025—Re-entered2025-0019COSMOS 2251 DEBNORAD 35604 · 1993-036AMX · FragmentRussia—3 Jan 2025—Re-entered2025-0020COSMOS 2251 DEBNORAD 35643 · 1993-036ANJ · FragmentRussia—3 Jan 2025—Re-entered2025-0021COSMOS 2251 DEBNORAD 35672 · 1993-036APP · FragmentRussia—3 Jan 2025—Re-entered2025-0046COSMOS 2251 DEBNORAD 36625 · 1993-036BEP · FragmentRussia—4 Jan 2025—Re-entered2025-0062COSMOS 2251 DEBNORAD 33989 · 1993-036FY · FragmentRussia—6 Jan 2025—Re-entered2025-0063COSMOS 2251 DEBNORAD 34550 · 1993-036UL · FragmentRussia—6 Jan 2025—Re-entered2025-0064COSMOS 2251 DEBNORAD 36384 · 1993-036AZM · FragmentRussia—6 Jan 2025—Re-entered2025-0065COSMOS 2251 DEBNORAD 39552 · 1993-036BUJ · FragmentRussia—6 Jan 2025—Re-entered2025-0103COSMOS 2251 DEBNORAD 35900 · 1993-036AUP · FragmentRussia—11 Jan 2025—Re-entered2025-0105COSMOS 2251 DEBNORAD 37981 · 1993-036BQG · FragmentRussia—11 Jan 2025—Re-entered2025-0109COSMOS 2251 DEBNORAD 47047 · 1993-036BXB · FragmentRussia—11 Jan 2025—Re-entered2025-0122COSMOS 2251 DEBNORAD 35962 · 1993-036AVC · FragmentRussia—13 Jan 2025—Re-entered2025-0129COSMOS 2251 DEBNORAD 35281 · 1993-036AJK · FragmentRussia—14 Jan 2025—Re-entered2025-0141COSMOS 2251 DEBNORAD 37850 · 1993-036BPE · FragmentRussia—15 Jan 2025—Re-entered2025-0149COSMOS 2251 DEBNORAD 34724 · 1993-036YS · FragmentRussia—16 Jan 2025—Re-entered2025-0151COSMOS 2251 DEBNORAD 35843 · 1993-036ATR · FragmentRussia—16 Jan 2025—Re-entered
1,101 entries · page 49 of 56
Other break-ups