Home›Maneuver Tracker›Close Approaches›SHIJIAN 6 04B (SJ-6 04B) ⟷ ANTELSAT
HighProximity
Final forecastFinal forecast, made 16 min before the pass.
Closest approach1 Nov 202614:32 UTC
Relative speed14.39 km/sat the closest approach
Altitude572 kmlow Earth orbit
Last confirmed1 Nov14:16 UTC · final forecast

CN SHIJIAN 6 04B (SJ-6 04B) and URY ANTELSAT were predicted to reach a closest approach of 4.87 km at 2026-11-01 14:32 UTC, at a relative speed of 14.39 km/s. Final forecast, made 16 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
NORAD 37180
CountryPRC
Launched2010-10-06
COSPAR2010-051B
Maneuver capableUnknown
ANTELSATPayload
NORAD 40034
CountryURY
Launched2014-06-19
COSPAR2014-033AA
Maneuver capableUnknown

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 572 KMISS 420Starlink 550

At 572 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 · SHIJIAN 6 04B (SJ-6 04B) ⟷ ANTELSAT
2026-11-01 14:324.87 km Final forecast14.39 km/s572 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
1 Nov 09:16 UTC4.87 km Forecast1 Nov 14:32 UTC1 Nov 05:27 UTCRe-check
31 Oct 21:16 UTC4.89 km Forecast1 Nov 14:32 UTC31 Oct 11:50 UTCRe-check
31 Oct 15:16 UTC4.89 km Forecast1 Nov 14:32 UTC31 Oct 05:25 UTCRe-check
31 Oct 14:56 UTC7.88 km Forecast1 Nov 14:32 UTC31 Oct 05:25 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
808 m11-03 18:37 UTC
SHIJIAN 6 04B (SJ-6 04B)STARLINK-5846
4.09 km11-01 20:52 UTC
COSMOS 2582ANTELSAT
4.23 km11-02 05:40 UTC
SHIJIAN 6 04B (SJ-6 04B)STARLINK-5236

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 →