Home›Maneuver Tracker›Close Approaches›COSMOS 2556 ⟷ STARLINK-5752
HighCross-border
On permanent record
Live forecastConfirmed by the latest screening, 13 Nov 02:34 UTC.
Closest approach13 Nov 202607:45 UTC
Relative speed13.38 km/sat the closest approach
Altitude480 kmlow Earth orbit
Separation now—live

RU COSMOS 2556 and US STARLINK-5752 are predicted to reach a closest approach of 4.97 km at 2026-11-13 07:45 UTC, at a relative speed of 13.38 km/s. Confirmed by the latest screening, 13 Nov 02:34 UTC. This is a cross-border encounter between objects of different nations. 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 52713
CountryCIS
Launched2022-05-19
COSPAR2022-054A
Maneuver capableUnknown
NORAD 55577
CountryUS
Launched2023-02-12
COSPAR2023-020J
Maneuver capableUnknown

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 480 KMISS 420Starlink 550

At 480 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

3 predicted passes under 10 km
Pair history · COSMOS 2556 ⟷ STARLINK-5752
2026-11-13 07:454.97 km Live forecast13.38 km/s480 kmShown above
2026-10-28 08:169.50 km Final forecast · after: 9.35 km13.02 km/s490 kmView →
2026-10-28 07:297.01 km Not re-confirmed · after: 10.0 km13.02 km/s480 kmView →

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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
12 Nov 23:01 UTC4.97 km Forecast13 Nov 07:45 UTC12 Nov 14:47 UTCRe-check
12 Nov 19:53 UTC5.63 km Forecast13 Nov 07:45 UTC12 Nov 12:15 UTCRe-check
12 Nov 19:33 UTC6.17 km Forecast13 Nov 07:45 UTC12 Nov 12:15 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
3.56 km11-07 05:02 UTC
COSMOS 2556CZ-6A DEB
4.20 km11-11 01:50 UTC
COSMOS 2556STARLINK-30332
4.51 km11-08 17:13 UTC
COSMOS 2556STARLINK-36069

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 →

✓ Permanent record. This encounter met the notability thresholds and keeps an archived page after the pass.