Home›Maneuver Tracker›Close Approaches›COSMOS 2165 ⟷ COSMOS 1691 DEB
HighProximity
RussiaCOSMOS 2165NORAD 21779 · launched Nov 1991Military payload
2.90kmPredicted miss distance
RussiaCOSMOS 1691 DEBNORAD 16271 · launched Oct 1985Military debris
Live forecastConfirmed by the latest screening, 22 Oct 17:03 UTC.
Closest approach23 Oct 202606:42 UTC
Relative speed5.13 km/sat the closest approach
Altitude1,417 kmlow Earth orbit
Separation now—live
Track COSMOS 2165Track COSMOS 1691 DEBAll approaches
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RU COSMOS 2165 and RU COSMOS 1691 DEB are predicted to reach a closest approach of 2.90 km at 2026-10-23 06:42 UTC, at a relative speed of 5.13 km/s. Confirmed by the latest screening, 22 Oct 17:03 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 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 2165Payload
NORAD 21779
CountryCIS
Launched1991-11-12
OrbitLEO · 1,394 × 1,411 km
COSPAR1991-077A
Maneuver capableUnknown
Profile →Globe →
COSMOS 1691 DEBDebris
NORAD 16271
CountryCIS
Launched1985-10-09
OrbitLEO · 1,407 × 1,414 km
COSPAR1985-094Q
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 · 1417 KMISS 420Starlink 550

At 1417 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 2165 ⟷ COSMOS 1691 DEB
2026-10-23 06:422.90 km Live forecast5.13 km/s1,417 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 UTC2.90 km Forecast23 Oct 06:42 UTC22 Oct 01:36 UTCRe-check
22 Oct 08:04 UTC2.69 km Forecast23 Oct 06:42 UTC21 Oct 21:03 UTCRe-check
22 Oct 07:04 UTC2.78 km Forecast23 Oct 06:42 UTC21 Oct 15:24 UTCRe-check
22 Oct 06:44 UTC2.96 km Forecast23 Oct 06:42 UTC21 Oct 15:24 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
2.04 km10-21 14:30 UTC
COSMOS 2165COSMOS 1230
3.67 km10-22 02:10 UTC
COSMOS 2254COSMOS 1691 DEB
3.94 km10-19 19:05 UTC
COSMOS 2248COSMOS 1691 DEB

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 2165 ⟷ COSMOS 1691 DEB: 2.90 km predicted close approach”, https://orbitalradar.com/conjunction/16271-21779 (accessed 2026-10-22).