Home›Maneuver Tracker›Close Approaches›SJ-30B ⟷ GUANGCHUAN 02
MediumProximity
ChinaSJ-30BNORAD 66546 · launched Nov 2025Military payload
6.14kmPredicted miss distance
ChinaGUANGCHUAN 02NORAD 62112 · launched Nov 2024Payload
Final forecastFinal forecast, made 12 min before the pass.
Closest approach2 Nov 202612:47 UTC
Relative speed4.31 km/sat the closest approach
Altitude513 kmlow Earth orbit
Last confirmed2 Nov12:35 UTC · final forecast
Track SJ-30BTrack GUANGCHUAN 02All approaches
Share

CN SJ-30B and CN GUANGCHUAN 02 were predicted to reach a closest approach of 6.14 km at 2026-11-02 12:47 UTC, at a relative speed of 4.31 km/s. Final forecast, made 12 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
SJ-30BPayload
NORAD 66546
CountryPRC
Launched2025-11-19
OrbitLEO · 515 × 524 km
COSPAR2025-266B
Maneuver capableUnknown
Profile →Globe →
GUANGCHUAN 02Payload
NORAD 62112
CountryPRC
Launched2024-11-27
OrbitLEO · 518 × 526 km
COSPAR2024-221B
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 513 KMISS 420Starlink 550

At 513 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

2 predicted passes under 10 km
Pair history · SJ-30B ⟷ GUANGCHUAN 02
2026-11-02 15:102.10 km Final forecast4.30 km/s527 kmView →
2026-11-02 12:476.14 km Final forecast4.31 km/s513 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
2 Nov 09:14 UTC6.14 km Forecast2 Nov 12:47 UTC2 Nov 02:51 UTCRe-check
2 Nov 03:27 UTC6.84 km Forecast2 Nov 12:47 UTC1 Nov 17:28 UTCRe-check
1 Nov 18:48 UTC5.46 km Forecast2 Nov 12:47 UTC1 Nov 06:24 UTCRe-check
1 Nov 18:19 UTC7.61 km Forecast2 Nov 12:47 UTC1 Nov 03:05 UTCRe-check
1 Nov 17:59 UTC7.70 km Forecast2 Nov 12:47 UTC1 Nov 03:05 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.03 km10-31 13:32 UTC
SJ-30BSTARLINK-30792
2.18 km10-30 20:47 UTC
SJ-30BOBJECT AF
3.02 km10-29 22:37 UTC
SJ-30BRADIX-M

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 — “SJ-30B ⟷ GUANGCHUAN 02: 6.14 km predicted close approach”, https://orbitalradar.com/conjunction/62112-66546 (accessed 2026-11-02).