Home›Maneuver Tracker›Close Approaches›RASSVET-3 20 ⟷ SL-8 DEB
MediumProximity
RussiaRASSVET-3 20NORAD 100086 · launched Jul 2026Payload
5.13kmPredicted miss distance
RussiaSL-8 DEBNORAD 16867 · launched Jul 1986Debris
Live forecastConfirmed by the latest screening, 21 Oct 16:11 UTC.
Closest approach22 Oct 202610:58 UTC
Relative speed14.88 km/sat the closest approach
Altitude516 kmlow Earth orbit
Separation now—live
Track RASSVET-3 20Track SL-8 DEBAll approaches
Share

RU RASSVET-3 20 and RU SL-8 DEB are predicted to reach a closest approach of 5.13 km at 2026-10-22 10:58 UTC, at a relative speed of 14.88 km/s. Confirmed by the latest screening, 21 Oct 16:11 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 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
RASSVET-3 20Payload
NORAD 100086
CountryCIS
Launched2026-07-19
OrbitLEO · 510 × 511 km
COSPAR2026-165D
Maneuver capableUnknown
Profile →Globe →
SL-8 DEBDebris
NORAD 16867
CountryCIS
Launched1986-07-16
OrbitLEO · 509 × 517 km
COSPAR1986-052E
Maneuver capableNo
Uncontrolled debris fragment tracked by the public catalogue. About space debris →
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 516 KMISS 420Starlink 550

At 516 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 20 ⟷ SL-8 DEB
2026-10-22 10:585.13 km Live forecast14.88 km/s516 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
21 Oct 13:50 UTC5.13 km Forecast22 Oct 10:58 UTC21 Oct 07:15 UTCRe-check
21 Oct 13:30 UTC7.39 km Forecast22 Oct 10:58 UTC21 Oct 07:15 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
2.73 km10-20 21:18 UTC
RASSVET-3 20OBJECT B
4.45 km10-21 21:08 UTC
RASSVET-3 20SKYBEE-A02
5.75 km10-20 03:08 UTC
RASSVET-3 20IRIDE-MS1-EAG2-13

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 — “RASSVET-3 20 ⟷ SL-8 DEB: 5.13 km predicted close approach”, https://orbitalradar.com/conjunction/100086-16867 (accessed 2026-10-21).