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MediumProximity
RussiaRASSVET-3 27NORAD 100093 · launched Jul 2026Payload
5.76kmPredicted miss distance
EuropeSATELIOT_6NORAD 100888 · launched Oct 2026Payload
Final forecastFinal forecast, made 10 min before the pass.
After the passBest estimate, from the orbit data published nearest its time: 10.5 km at 3 Nov 04:39 UTC.
Closest approach3 Nov 202604:39 UTC
Relative speed11.74 km/sat the closest approach
Altitude521 kmlow Earth orbit
Last confirmed3 Nov04:29 UTC · final forecast
Track RASSVET-3 27Track SATELIOT_6All approaches
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RU RASSVET-3 27 and SPN SATELIOT_6 were predicted to reach a closest approach of 5.76 km at 2026-11-03 04:39 UTC, at a relative speed of 11.74 km/s. Final forecast, made 10 min before the pass. Best estimate after the pass, from the orbit data published nearest its time: 10.5 km at 3 Nov 04:39 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
RASSVET-3 27Payload
NORAD 100093
CountryCIS
Launched2026-07-19
OrbitLEO · 507 × 511 km
COSPAR2026-165L
Maneuver capableUnknown
Profile →Globe →
SATELIOT_6Payload
NORAD 100888
CountrySPN
Launched2026-10-01
OrbitLEO · 515 × 516 km
COSPAR2026-227F
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 521 KMISS 420Starlink 550

At 521 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

1 predicted pass under 10 km
Pair history · RASSVET-3 27 ⟷ SATELIOT_6
2026-11-03 04:395.76 km Final forecast11.74 km/s521 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
6 Nov 10:20 UTC10.48 km Best estimate3 Nov 04:39 UTC2 Nov 22:41 UTCBest estimate
2 Nov 09:14 UTC5.76 km Forecast3 Nov 04:39 UTC1 Nov 21:24 UTCRe-check
2 Nov 04:47 UTC5.51 km Forecast3 Nov 04:39 UTC1 Nov 07:10 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
786 m11-05 22:19 UTC
COSMOS 2576RASSVET-3 27
2.44 km11-02 15:11 UTC
RASSVET-3 27FEMTO-1
4.90 km11-02 15:58 UTC
RASSVET-3 27FEMTO-1

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 →