Home›Maneuver Tracker›Close Approaches›RASSVET-3 20 ⟷ POPSAT HIP 1
HighProximity
RussiaRASSVET-3 20NORAD 100086 · launched Jul 2026Payload
1.76kmPredicted miss distance
SINGPOPSAT HIP 1NORAD 40028 · launched Jun 2014Payload
Live forecastConfirmed by the latest screening, 4 Nov 04:45 UTC.
Closest approach4 Nov 202606:53 UTC
Relative speed14.58 km/sat the closest approach
Altitude502 kmlow Earth orbit
Separation now—live
Track RASSVET-3 20Track POPSAT HIP 1All approaches
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RU RASSVET-3 20 and SING POPSAT HIP 1 are predicted to reach a closest approach of 1.76 km at 2026-11-04 06:53 UTC, at a relative speed of 14.58 km/s. Confirmed by the latest screening, 4 Nov 04:45 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 20Payload
NORAD 100086
CountryCIS
Launched2026-07-19
OrbitLEO · 508 × 510 km
COSPAR2026-165D
Maneuver capableUnknown
Profile →Globe →
POPSAT HIP 1Payload
NORAD 40028
CountrySING
Launched2014-06-19
OrbitLEO · 510 × 521 km
COSPAR2014-033U
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 502 KMISS 420Starlink 550

At 502 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 ⟷ POPSAT HIP 1
2026-11-04 06:531.76 km Live forecast14.58 km/s502 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
3 Nov 20:29 UTC1.76 km Forecast4 Nov 06:53 UTC3 Nov 14:39 UTCRe-check
3 Nov 18:05 UTC1.74 km Forecast4 Nov 06:53 UTC2 Nov 21:14 UTCRe-check
3 Nov 17:45 UTC3.75 km Forecast4 Nov 06:53 UTC2 Nov 21:14 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.22 km11-04 17:58 UTC
RASSVET-3 20OBJECT T
1.51 km11-03 04:30 UTC
YAOGAN-39 02CRASSVET-3 20
2.16 km10-28 15:48 UTC
RASSVET-3 20HAWK-12C

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 →