Home›Maneuver Tracker›Close Approaches›COSMOS 1994 ⟷ COSMOS 1830
MediumProximity
Live forecastConfirmed by the latest screening, 14 Nov 17:10 UTC.
Closest approach15 Nov 202606:13 UTC
Relative speed13.59 km/sat the closest approach
Altitude1,402 kmlow Earth orbit
Separation now—live

RU COSMOS 1994 and RU COSMOS 1830 are predicted to reach a closest approach of 5.05 km at 2026-11-15 06:13 UTC, at a relative speed of 13.59 km/s. Confirmed by the latest screening, 14 Nov 17:10 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
NORAD 19785
CountryCIS
Launched1989-02-10
COSPAR1989-009A
Maneuver capableUnknown
NORAD 17585
CountryCIS
Launched1987-03-13
COSPAR1987-026D
Maneuver capableUnknown

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1402 KMISS 420Starlink 550

At 1402 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 1994 ⟷ COSMOS 1830
2026-11-15 09:042.73 km Live forecast13.57 km/s1,412 kmView →
2026-11-15 06:135.05 km Live forecast13.59 km/s1,402 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
14 Nov 17:09 UTC5.05 km Forecast15 Nov 06:13 UTC14 Nov 07:54 UTCRe-check
14 Nov 11:53 UTC5.05 km Forecast15 Nov 06:13 UTC14 Nov 06:00 UTCRe-check
14 Nov 10:54 UTC5.04 km Forecast15 Nov 06:13 UTC13 Nov 22:08 UTCRe-check
14 Nov 10:35 UTC7.78 km Forecast15 Nov 06:13 UTC13 Nov 22:08 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.02 km11-11 19:21 UTC
COSMOS 1994GLOBALSTAR M082
2.95 km11-10 10:34 UTC
COSMOS 1994DELTA 1 DEB
3.04 km11-14 11:34 UTC
COSMOS 1994GLOBALSTAR M076

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 →