Home›Maneuver Tracker›Close Approaches›COSMOS 2301 ⟷ SL-14 DEB
MediumProximity
RussiaCOSMOS 2301NORAD 23443 · launched Dec 1994Military payload
5.37kmPredicted miss distance
RussiaSL-14 DEBNORAD 26001 · launched Sep 1991Debris
Final forecastFinal forecast, made 14 min before the pass.
Closest approach22 Oct 202614:36 UTC
Relative speed4.17 km/sat the closest approach
Altitude1,420 kmlow Earth orbit
Last confirmed22 Oct14:22 UTC · final forecast
Track COSMOS 2301Track SL-14 DEBAll approaches
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RU COSMOS 2301 and RU SL-14 DEB were predicted to reach a closest approach of 5.37 km at 2026-10-22 14:36 UTC, at a relative speed of 4.17 km/s. Final forecast, made 14 min before the pass. Miss distance and time of closest approach are computed by propagating the latest published orbital elements for both objects, and each pass is re-checked every 20 minutes as new element sets are published. See the Satellite Maneuver Tracker for the live picture and space situational awareness for context.

Why it mattersOne side of this pass cannot maneuver, so any avoidance decision rests with the other operator. Screening continues as new element sets arrive.

The Two Objects

Dossiers from the satellite directory
COSMOS 2301Payload
NORAD 23443
CountryCIS
Launched1994-12-26
OrbitLEO · 1,413 × 1,415 km
COSPAR1994-086C
Maneuver capableUnknown
Profile →Globe →
SL-14 DEBDebris
NORAD 26001
CountryCIS
Launched1991-09-28
OrbitLEO · 1,321 × 1,459 km
COSPAR1991-068L
Maneuver capableNo
Uncontrolled debris fragment tracked by the public catalogue. About space debris →
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1420 KMISS 420Starlink 550

At 1420 km this pass sits in low Earth orbit. Objects here stay up for decades: there is too little atmospheric drag to clean the band naturally. Why crowded bands matter →

History Between This Pair

1 predicted pass under 10 km
Pair history · COSMOS 2301 ⟷ SL-14 DEB
2026-10-22 14:365.37 km Final forecast4.17 km/s1,420 kmShown above

Repeat encounters are common for objects in near-intersecting orbital planes. Each pass is re-screened as fresh element sets arrive; "Final forecast" means the screening still predicted it within 45 minutes of its time, "Not re-confirmed" means later screening stopped finding it.

Forecast Record

Every figure published for the pass shown above, newest first. Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.
Computed · figure · predicted time · orbit data · by
22 Oct 11:50 UTC5.37 km Forecast22 Oct 14:36 UTC22 Oct 06:23 UTCRe-check
22 Oct 08:04 UTC5.38 km Forecast22 Oct 14:36 UTC21 Oct 22:17 UTCRe-check
22 Oct 02:04 UTC5.41 km Forecast22 Oct 14:36 UTC21 Oct 15:15 UTCRe-check
21 Oct 19:30 UTC5.39 km Forecast22 Oct 14:36 UTC21 Oct 07:33 UTCRe-check
21 Oct 19:10 UTC5.54 km Forecast22 Oct 14:36 UTC21 Oct 07:33 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
2.95 km10-20 17:15 UTC
COSMOS 2189SL-14 DEB
4.07 km10-23 12:23 UTC
COSMOS 2301COSMOS 447
4.26 km10-20 16:43 UTC
COSMOS 2301GLOBALSTAR M037

How These Numbers Are Computed

Miss distance and TCA come from propagating the latest published orbital elements for both objects and searching for the minimum separation over the screening window. Element sets carry kilometre-scale uncertainty, so figures here describe a close pass, not a collision prediction; a change in either object's published elements re-computes the pass automatically. What is a conjunction? → How conjunction assessment works →

Cite this encounter: Orbital Radar — “COSMOS 2301 ⟷ SL-14 DEB: 5.37 km predicted close approach”, https://orbitalradar.com/conjunction/23443-26001 (accessed 2026-10-23).