Home›Maneuver Tracker›Close Approaches›COSMOS 2130 ⟷ COSMOS 1230
MediumProximity
RussiaCOSMOS 2130NORAD 21105 · launched Feb 1991Military payload
8.00kmPredicted miss distance
RussiaCOSMOS 1230NORAD 12109 · launched Dec 1980Military payload
Final forecastFinal forecast, made 14 min before the pass.
Closest approach9 Nov 202622:46 UTC
Relative speed12.50 km/sat the closest approach
Altitude1,465 kmlow Earth orbit
Last confirmed9 Nov22:31 UTC · final forecast
Track COSMOS 2130Track COSMOS 1230All approaches
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RU COSMOS 2130 and RU COSMOS 1230 were predicted to reach a closest approach of 8.00 km at 2026-11-09 22:46 UTC, at a relative speed of 12.50 km/s. Final forecast, made 14 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 2130Payload
NORAD 21105
CountryCIS
Launched1991-02-12
OrbitLEO · 1,401 × 1,468 km
COSPAR1991-009F
Maneuver capableUnknown
Profile →Globe →
COSMOS 1230Payload
NORAD 12109
CountryCIS
Launched1980-12-23
OrbitLEO · 1,399 × 1,464 km
COSPAR1980-102C
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1465 KMISS 420Starlink 550

At 1465 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

2 predicted passes under 10 km
Pair history · COSMOS 2130 ⟷ COSMOS 1230
2026-11-10 07:212.43 km Final forecast12.60 km/s1,402 kmView →
2026-11-09 22:468.00 km Final forecast12.50 km/s1,465 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
9 Nov 21:51 UTC8.00 km Forecast9 Nov 22:46 UTC9 Nov 14:47 UTCRe-check
9 Nov 11:35 UTC8.01 km Forecast9 Nov 22:46 UTC9 Nov 07:02 UTCRe-check
9 Nov 07:52 UTC7.93 km Forecast9 Nov 22:46 UTC8 Nov 06:12 UTCRe-check
9 Nov 07:32 UTC9.59 km Forecast9 Nov 22:46 UTC8 Nov 06:12 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
854 m11-08 22:52 UTC
COSMOS 2213COSMOS 1230
2.41 km11-05 12:52 UTC
COSMOS 1996COSMOS 1230
2.98 km11-09 21:06 UTC
COSMOS 2130COSMOS 875

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 →