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RU COSMOS 2114RU COSMOS 1229
3.68 kmpredicted miss distance
Final forecastFinal forecast, made 13 min before the pass.
After the passBest estimate, from the orbit data published nearest its time: 3.64 km at 21 Oct 03:05 UTC.
Predicted closest approach
2026-10-21 03:05 UTC
Relative speed
7.98 km/s
Altitude
1,420 km
Last confirmed
21 Oct 02:52 UTC
Track COSMOS 2114 →Track COSMOS 1229 →All approaches →
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RU COSMOS 2114 and RU COSMOS 1229 were predicted to reach a closest approach of 3.68 km at 2026-10-21 03:05 UTC, at a relative speed of 7.98 km/s. Final forecast, made 13 min before the pass. Best estimate after the pass, from the orbit data published nearest its time: 3.64 km at 21 Oct 03:05 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 2114Payload
NORAD 21028
CountryCIS
Launched1990-12-22
OrbitLEO · 1,407 × 1,416 km
COSPAR1990-114A
Maneuver capableUnknown
Profile →Globe →
COSMOS 1229Payload
NORAD 12108
CountryCIS
Launched1980-12-23
OrbitLEO · 1,413 × 1,465 km
COSPAR1980-102B
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1420 KMISS 420Starlink 550

At 1420 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 2114 ⟷ COSMOS 1229
2026-10-21 03:053.68 km Final forecast7.98 km/s1,420 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
23 Oct 03:16 UTC3.64 km Best estimate21 Oct 03:05 UTC21 Oct 03:55 UTCBest estimate
20 Oct 12:32 UTC3.68 km Forecast21 Oct 03:05 UTC20 Oct 06:57 UTCRe-check
20 Oct 12:13 UTC5.49 km Forecast21 Oct 03:05 UTC19 Oct 21:07 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
3.60 km10-21 00:11 UTC
COSMOS 2114COSMOS 2245
3.72 km10-19 20:34 UTC
COSMOS 2090COSMOS 1229
3.82 km10-23 17:58 UTC
COSMOS 2114GLOBALSTAR M088

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 2114 ⟷ COSMOS 1229: 3.68 km predicted close approach”, https://orbitalradar.com/conjunction/12108-21028 (accessed 2026-10-23).