Home›Maneuver Tracker›Close Approaches›YAOGAN 10 ⟷ ORBCOMM FM 29
HighProximity
ChinaYAOGAN 10NORAD 36834 · launched Aug 2010Military payload
3.54kmPredicted miss distance
ORBORBCOMM FM 29NORAD 33062 · launched Jun 2008Payload
Final forecastFinal forecast, made 10 min before the pass.
After the passBest estimate, from the orbit data published nearest its time: 3.60 km at 3 Nov 23:54 UTC.
Closest approach3 Nov 202623:54 UTC
Relative speed12.46 km/sat the closest approach
Altitude608 kmlow Earth orbit
Last confirmed3 Nov23:44 UTC · final forecast
Track YAOGAN 10Track ORBCOMM FM 29All approaches
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CN YAOGAN 10 and ORB ORBCOMM FM 29 were predicted to reach a closest approach of 3.54 km at 2026-11-03 23:54 UTC, at a relative speed of 12.46 km/s. Final forecast, made 10 min before the pass. Best estimate after the pass, from the orbit data published nearest its time: 3.60 km at 3 Nov 23:54 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
YAOGAN 10Payload
NORAD 36834
CountryPRC
Launched2010-08-09
OrbitLEO · 610 × 612 km
COSPAR2010-038A
Maneuver capableUnknown
Profile →Globe →
ORBCOMM FM 29Payload
NORAD 33062
CountryORB
Launched2008-06-19
OrbitLEO · 616 × 623 km
COSPAR2008-031C
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 608 KMISS 420Starlink 550

At 608 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 · YAOGAN 10 ⟷ ORBCOMM FM 29
2026-11-04 00:428.66 km Final forecast12.43 km/s623 kmView →
2026-11-03 23:543.54 km Final forecast12.46 km/s608 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
7 Nov 13:11 UTC3.60 km Best estimate3 Nov 23:54 UTC4 Nov 04:34 UTCBest estimate
3 Nov 20:36 UTC3.54 km Forecast3 Nov 23:54 UTC3 Nov 15:50 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.25 km11-05 10:02 UTC
YAOGAN 10GEESAT 3-08
2.79 km11-07 20:35 UTC
YAOGAN 10FENGYUN 1C DEB
3.15 km11-08 11:59 UTC
YAOGAN 10BB3

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 →