Home›Maneuver Tracker›Close Approaches›YAOGAN-34 ⟷ QIANFAN-76
HighProximity
Final forecastFinal forecast, made 6 min before the pass.
Closest approach9 Nov 202602:57 UTC
Relative speed13.81 km/sat the closest approach
Altitude1,067 kmlow Earth orbit
Last confirmed9 Nov02:52 UTC · final forecast

CN YAOGAN-34 and CN QIANFAN-76 were predicted to reach a closest approach of 1.82 km at 2026-11-09 02:57 UTC, at a relative speed of 13.81 km/s. Final forecast, made 6 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
YAOGAN-34Payload
NORAD 48340
CountryPRC
Launched2021-04-30
COSPAR2021-037A
Maneuver capableUnknown
QIANFAN-76Payload
NORAD 63162
CountryPRC
Launched2025-03-11
COSPAR2025-046D
Maneuver capableUnknown

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1067 KMISS 420Starlink 550

At 1067 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 · YAOGAN-34 ⟷ QIANFAN-76
2026-11-09 02:571.82 km Final forecast13.81 km/s1,067 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
8 Nov 12:32 UTC1.82 km Forecast9 Nov 02:57 UTC8 Nov 08:05 UTCRe-check
8 Nov 10:08 UTC1.83 km Forecast9 Nov 02:57 UTC7 Nov 22:39 UTCRe-check
8 Nov 09:49 UTC5.79 km Forecast9 Nov 02:57 UTC7 Nov 22:39 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
2.69 km11-10 08:54 UTC
YAOGAN-34DELTA 1 DEB
3.68 km11-07 03:22 UTC
YAOGAN-34QIANFAN-43
4.38 km11-06 12:16 UTC
YAOGAN-34NIMBUS 2 DEB

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 →