Home›Maneuver Tracker›Close Approaches›COSMOS 2167 ⟷ SL-14 R/B
HighProximity
RussiaCOSMOS 2167NORAD 21781 · launched Nov 1991Military payload
1.59kmPredicted miss distance
RussiaSL-14 R/BNORAD 22040 · launched Jul 1992Rocket body
Final forecastFinal forecast, made 16 min before the pass.
Closest approach8 Nov 202601:57 UTC
Relative speed12.74 km/sat the closest approach
Altitude1,419 kmlow Earth orbit
Last confirmed8 Nov01:41 UTC · final forecast
Track COSMOS 2167Track SL-14 R/BAll approaches
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RU COSMOS 2167 and RU SL-14 R/B were predicted to reach a closest approach of 1.59 km at 2026-11-08 01:57 UTC, at a relative speed of 12.74 km/s. Final forecast, made 16 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 2167Payload
NORAD 21781
CountryCIS
Launched1991-11-12
OrbitLEO · 1,399 × 1,411 km
COSPAR1991-077C
Maneuver capableUnknown
Profile →Globe →
SL-14 R/BR/B
NORAD 22040
CountryCIS
Launched1992-07-13
OrbitLEO · 1,410 × 1,474 km
COSPAR1992-042G
Maneuver capableNo
Spent rocket stage: uncontrolled, tracked by the public catalogue.
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1419 KMISS 420Starlink 550

At 1419 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 2167 ⟷ SL-14 R/B
2026-11-08 01:571.59 km Final forecast12.74 km/s1,419 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
7 Nov 19:08 UTC1.59 km Forecast8 Nov 01:57 UTC7 Nov 03:37 UTCRe-check
7 Nov 18:49 UTC1.72 km Forecast8 Nov 01:57 UTC7 Nov 03:37 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.28 km11-03 17:15 UTC
COSMOS 2167COSMOS 1622
3.37 km11-05 03:49 UTC
COSMOS 2167GLOBALSTAR M095
3.88 km11-03 19:09 UTC
COSMOS 2167COSMOS 1622

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 →