Home›Maneuver Tracker›Close Approaches›COSMOS 2255 ⟷ COSMOS 1619
HighProximity
RussiaCOSMOS 2255NORAD 22690 · launched Jun 1993Military payload
1.93kmPredicted miss distance
RussiaCOSMOS 1619NORAD 15471 · launched Jan 1985Military payload
Final forecastFinal forecast, made 12 min before the pass.
Closest approach3 Nov 202603:01 UTC
Relative speed14.15 km/sat the closest approach
Altitude1,412 kmlow Earth orbit
Last confirmed3 Nov02:49 UTC · final forecast
Track COSMOS 2255Track COSMOS 1619All approaches
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RU COSMOS 2255 and RU COSMOS 1619 were predicted to reach a closest approach of 1.93 km at 2026-11-03 03:01 UTC, at a relative speed of 14.15 km/s. Final forecast, made 12 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 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 2255Payload
NORAD 22690
CountryCIS
Launched1993-06-24
OrbitLEO · 1,404 × 1,414 km
COSPAR1993-038D
Maneuver capableUnknown
Profile →Globe →
COSMOS 1619Payload
NORAD 15471
CountryCIS
Launched1985-01-15
OrbitLEO · 1,381 × 1,413 km
COSPAR1985-003C
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1412 KMISS 420Starlink 550

At 1412 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 2255 ⟷ COSMOS 1619
2026-11-03 03:011.93 km Final forecast14.15 km/s1,412 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
2 Nov 21:35 UTC1.93 km Forecast3 Nov 03:01 UTC2 Nov 12:16 UTCRe-check
2 Nov 11:55 UTC1.90 km Forecast3 Nov 03:01 UTC2 Nov 01:24 UTCRe-check
2 Nov 11:35 UTC2.85 km Forecast3 Nov 03:01 UTC2 Nov 01:24 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.22 km11-03 18:14 UTC
COSMOS 2165COSMOS 1619
1.72 km10-28 17:31 UTC
COSMOS 2255COSMOS 1081
2.54 km10-31 20:31 UTC
COSMOS 2255COSMOS 1911

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 2255 ⟷ COSMOS 1619: 1.93 km predicted close approach”, https://orbitalradar.com/conjunction/15471-22690 (accessed 2026-11-03).