Home›Maneuver Tracker›Close Approaches›COSMOS 2583 ⟷ COSMOS 2251 DEB
HighProximity
RussiaCOSMOS 2583NORAD 62904 · launched Feb 2025Military payload
2.74kmPredicted miss distance
RussiaCOSMOS 2251 DEBNORAD 35703 · launched Jun 1993Military debris
Live forecastConfirmed by the latest screening, 30 Oct 19:33 UTC.
Closest approach31 Oct 202608:19 UTC
Relative speed14.82 km/sat the closest approach
Altitude580 kmlow Earth orbit
Separation now—live
Track COSMOS 2583Track COSMOS 2251 DEBAll approaches
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RU COSMOS 2583 and RU COSMOS 2251 DEB are predicted to reach a closest approach of 2.74 km at 2026-10-31 08:19 UTC, at a relative speed of 14.82 km/s. Confirmed by the latest screening, 30 Oct 19:33 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 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 2583Payload
NORAD 62904
CountryCIS
Launched2025-02-05
OrbitLEO · 575 × 588 km
COSPAR2025-026C
Maneuver capableUnknown
Profile →Globe →
COSMOS 2251 DEBDebris
NORAD 35703
CountryCIS
Launched1993-06-16
OrbitLEO · 542 × 627 km
COSPAR1993-036APY
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 · 580 KMISS 420Starlink 550

At 580 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 2583 ⟷ COSMOS 2251 DEB
2026-10-31 08:192.74 km Live forecast14.82 km/s580 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
30 Oct 09:31 UTC2.74 km Forecast31 Oct 08:19 UTC29 Oct 21:46 UTCRe-check
30 Oct 08:51 UTC2.75 km Forecast31 Oct 08:19 UTC28 Oct 18:28 UTCRe-check
30 Oct 08:31 UTC9.31 km Forecast31 Oct 08:19 UTC28 Oct 18:28 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
393 m10-24 10:05 UTC
COSMOS 2583OBJECT D
2.08 km10-27 14:03 UTC
COSMOS 2583COSMOS 1275 DEB
2.22 km10-26 06:15 UTC
COSMOS 2583STRIX-9

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 2583 ⟷ COSMOS 2251 DEB: 2.74 km predicted close approach”, https://orbitalradar.com/conjunction/35703-62904 (accessed 2026-10-30).