Catalog
14 tracked objects currently screening against the fleet
Screening load
Objects14
Screening8
Events8
No RCS1
No covariance7
Epoch > 24h0
Composition
what the fleet is being screened against
By object type
- debris11
- rocket body1
- payload1
- unknown1
An object with no radar cross-section is screened on its orbit alone — the hard-body radius falls back to a conservative default, which widens every probability it appears in.
By covariance delivered
- full 6x65
- position only2
- none7
A probability of collision needs a covariance on both objects. Where one is missing the event is screened on miss distance and reported without a Pc.
Breakup families
11 origins
Iridium–Cosmos collision, 20093
2 active events
FY-1C ASAT test, 20072
1 active event
Nudol ASAT test, 20211
1 active event
Zenit-2 upper stage breakup1
1 active event
Kosmos-3M upper stage, 19851
1 active event
Starlink shell 1, 20201
1 active event
5 further origins · 5 objects · no active events
Tracked objects
14 objects
| NORAD | Designation | Type | RCS m² | Apogee km | Perigee km | Incl ° | Active events | Origin |
|---|---|---|---|---|---|---|---|---|
| 34454 | COSMOS 2251 DEB | debris | 0.032 | 812 | 498 | 74.0 | 1 | Iridium–Cosmos collision, 2009 |
| 34871 | COSMOS 2251 DEB | debris | 0.047 | 774 | 512 | 74.1 | 0 | Iridium–Cosmos collision, 2009 |
| 30291 | FENGYUN 1C DEB | debris | 0.021 | 891 | 534 | 98.7 | 1 | FY-1C ASAT test, 2007 |
| 29275 | FENGYUN 1C DEB | debris | 0.014 | 902 | 521 | 98.6 | 0 | FY-1C ASAT test, 2007 |
| 33759 | IRIDIUM 33 DEB | debris | 0.058 | 786 | 604 | 86.4 | 1 | Iridium–Cosmos collision, 2009 |
| 49271 | COSMOS 1408 DEB | debris | 0.011 | 662 | 441 | 82.6 | 1 | Nudol ASAT test, 2021 |
| 23705 | SL-16 R/B DEB | debris | 0.140 | 851 | 832 | 71.0 | 1 | Zenit-2 upper stage breakup |
| 16182 | SL-8 R/B | rocket body | 4.710 | 1012 | 967 | 82.9 | 1 | Kosmos-3M upper stage, 1985 |
| 45657 | STARLINK-1436 | payload | 2.140 | 551 | 544 | 53.0 | 1 | Starlink shell 1, 2020 |
| 99214 | UNCHARACTERIZED OBJECT | unknown | — | 728 | 691 | 98.1 | 1 | Unattributed — 3 optical tracks |
| 12445 | DELTA 1 DEB | debris | 0.088 | 924 | 588 | 99.4 | 0 | Delta 1 upper stage breakup, 1981 |
| 26588 | ARIANE 40 DEB | debris | 0.062 | 812 | 704 | 98.8 | 0 | Ariane 4 H-10 stage, 1996 |
| 54221 | CZ-6 DEB | debris | 0.026 | 604 | 488 | 97.5 | 0 | CZ-6A upper stage breakup, 2022 |
| 18962 | THORAD AGENA D DEB | debris | 0.104 | 1044 | 466 | 82.0 | 0 | Thorad-Agena D breakup, 1970 |