Home›Maneuver Tracker›Close Approaches›COSMOS 2598 ⟷ COSMOS 716
HighProximity
RussiaCOSMOS 2598NORAD 66648 · launched Nov 2025Military payload
4.90kmPredicted miss distance
RussiaCOSMOS 716NORAD 7683 · launched Feb 1975Military payload
Final forecastFinal forecast, made 13 min before the pass.
Closest approach31 Oct 202623:09 UTC
Relative speed1.46 km/sat the closest approach
Altitude1,498 kmlow Earth orbit
Last confirmed31 Oct22:56 UTC · final forecast
Track COSMOS 2598Track COSMOS 716All approaches
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RU COSMOS 2598 and RU COSMOS 716 were predicted to reach a closest approach of 4.90 km at 2026-10-31 23:09 UTC, at a relative speed of 1.46 km/s. Final forecast, made 13 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 2598Payload
NORAD 66648
CountryCIS
Launched2025-11-25
OrbitLEO · 1,486 × 1,503 km
COSPAR2025-273B
Maneuver capableUnknown
Profile →Globe →
COSMOS 716Payload
NORAD 7683
CountryCIS
Launched1975-02-28
OrbitLEO · 1,479 × 1,513 km
COSPAR1975-016F
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1498 KMISS 420Starlink 550

At 1498 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 2598 ⟷ COSMOS 716
2026-11-01 17:315.84 km Live forecast1.42 km/s1,495 kmView →
2026-11-01 15:358.06 km Live forecast1.43 km/s1,495 kmView →
2026-10-31 23:094.90 km Final forecast1.46 km/s1,498 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
31 Oct 21:16 UTC4.90 km Forecast31 Oct 23:09 UTC31 Oct 10:12 UTCRe-check
31 Oct 09:16 UTC4.94 km Forecast31 Oct 23:09 UTC31 Oct 05:00 UTCRe-check
30 Oct 23:22 UTC5.00 km Forecast31 Oct 23:09 UTC30 Oct 10:50 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
6.12 km10-28 17:32 UTC
COSMOS 2598COSMOS 1016
6.17 km10-28 16:48 UTC
COSMOS 2598COSMOS 1088
6.25 km10-26 12:18 UTC
COSMOS 2598THOR ABLESTAR DEB

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 2598 ⟷ COSMOS 716: 4.90 km predicted close approach”, https://orbitalradar.com/conjunction/66648-7683 (accessed 2026-11-01).