Home›Maneuver Tracker›Close Approaches›COSMOS 2146 ⟷ COSMOS 2212
HighProximity
RussiaCOSMOS 2146NORAD 21302 · launched May 1991Military payload
3.87kmPredicted miss distance
RussiaCOSMOS 2212NORAD 22183 · launched Oct 1992Military payload
Live forecastConfirmed by the latest screening, 14 Nov 02:03 UTC.
Closest approach14 Nov 202604:44 UTC
Relative speed4.23 km/sat the closest approach
Altitude1,419 kmlow Earth orbit
Separation now—live
Track COSMOS 2146Track COSMOS 2212All approaches
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RU COSMOS 2146 and RU COSMOS 2212 are predicted to reach a closest approach of 3.87 km at 2026-11-14 04:44 UTC, at a relative speed of 4.23 km/s. Confirmed by the latest screening, 14 Nov 02:03 UTC. 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 mattersBoth objects are catalogued as payloads. Screening continues as new element sets arrive; operators act on their own conjunction data.

The Two Objects

Dossiers from the satellite directory
COSMOS 2146Payload
NORAD 21302
CountryCIS
Launched1991-05-16
OrbitLEO · 1,391 × 1,417 km
COSPAR1991-033D
Maneuver capableUnknown
Profile →Globe →
COSMOS 2212Payload
NORAD 22183
CountryCIS
Launched1992-10-20
OrbitLEO · 1,408 × 1,412 km
COSPAR1992-068B
Maneuver capableUnknown
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 2146 ⟷ COSMOS 2212
2026-11-14 04:443.87 km Live forecast4.23 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
13 Nov 13:44 UTC3.87 km Forecast14 Nov 04:44 UTC13 Nov 06:24 UTCRe-check
13 Nov 10:44 UTC3.92 km Forecast14 Nov 04:44 UTC13 Nov 02:37 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
931 m11-14 23:40 UTC
COSMOS 2212COSMOS 732
1.36 km11-10 06:42 UTC
COSMOS 2212DELTA 1 DEB
3.30 km11-14 18:08 UTC
COSMOS 2212COSMOS 1642

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 →