Home›Maneuver Tracker›Close Approaches›COSMOS 2524 ⟷ FENGYUN 1C DEB
HighCross-border
ForecastForecast made 14 Nov 14:09 UTC.
Closest approach14 Nov 202616:06 UTC
Relative speed8.95 km/sat the closest approach
Altitude909 kmlow Earth orbit
Last confirmed14 Nov14:09 UTC · forecast

RU COSMOS 2524 and CN FENGYUN 1C DEB are predicted to reach a closest approach of 7.28 km at 2026-11-14 16:06 UTC, at a relative speed of 8.95 km/s. Forecast made 14 Nov 14:09 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 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
NORAD 43032
CountryCIS
Launched2017-12-02
COSPAR2017-076A
Maneuver capableUnknown
NORAD 31295
CountryPRC
Launched1999-05-10
COSPAR1999-025BPD
Maneuver capableNo
Uncontrolled debris fragment tracked by the public catalogue. About space debris →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 909 KMISS 420Starlink 550

At 909 km this pass sits inside the most congested band in low Earth orbit, home to the debris left by the 2007 ASAT test and the 2009 collision. 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 2524 ⟷ FENGYUN 1C DEB
2026-11-15 04:592.01 km Forecast8.79 km/s899 kmView →
2026-11-14 16:067.28 km Forecast8.95 km/s909 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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 11:53 UTC7.28 km Forecast14 Nov 16:06 UTC14 Nov 06:09 UTCRe-check
14 Nov 09:02 UTC7.26 km Forecast14 Nov 16:06 UTC13 Nov 23:16 UTCRe-check
14 Nov 03:02 UTC7.67 km Forecast14 Nov 16:06 UTC13 Nov 14:41 UTCRe-check
13 Nov 16:44 UTC7.20 km Forecast14 Nov 16:06 UTC13 Nov 06:06 UTCRe-check
13 Nov 16:24 UTC8.11 km Forecast14 Nov 16:06 UTC13 Nov 06:06 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.69 km11-13 06:55 UTC
COSMOS 2524OPS 7613 (P/L 1)
3.04 km11-08 22:56 UTC
COSMOS 2524TIANQI 31
3.90 km11-11 08:11 UTC
COSMOS 2524GGSE 5

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 →