Home›Maneuver Tracker›Close Approaches›HULIANWANG DIGUI 227 ⟷ QIANFAN-50
HighProximity
ChinaHULIANWANG DIGUI 227NORAD 101189 · launched Oct 2026Payload
3.81kmPredicted miss distance
ChinaQIANFAN-50NORAD 62251 · launched Dec 2024Payload
Final forecastFinal forecast, made 9 min before the pass.
After the passBest estimate, from the orbit data published nearest its time: 3.91 km at 29 Oct 02:44 UTC.
Closest approach29 Oct 202602:44 UTC
Relative speed5.03 km/sat the closest approach
Altitude1,055 kmlow Earth orbit
Last confirmed29 Oct02:35 UTC · final forecast
Track HULIANWANG DIGUI 227Track QIANFAN-50All approaches
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CN HULIANWANG DIGUI 227 and CN QIANFAN-50 were predicted to reach a closest approach of 3.81 km at 2026-10-29 02:44 UTC, at a relative speed of 5.03 km/s. Final forecast, made 9 min before the pass. Best estimate after the pass, from the orbit data published nearest its time: 3.91 km at 29 Oct 02:44 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
HULIANWANG DIGUI 227Payload
NORAD 101189
CountryPRC
Launched2026-10-25
OrbitLEO · 1,041 × 1,060 km
COSPAR2026-243E
Maneuver capableUnknown
Profile →Globe →
QIANFAN-50Payload
NORAD 62251
CountryPRC
Launched2024-12-05
OrbitLEO · 1,067 × 1,092 km
COSPAR2024-232Q
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 1055 KMISS 420Starlink 550

At 1055 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 · HULIANWANG DIGUI 227 ⟷ QIANFAN-50
2026-10-29 02:443.81 km Final forecast5.03 km/s1,055 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 02:07 UTC3.91 km Best estimate29 Oct 02:44 UTC29 Oct 06:13 UTCBest estimate
29 Oct 00:15 UTC3.81 km Forecast29 Oct 02:44 UTC28 Oct 14:14 UTCRe-check
28 Oct 12:15 UTC3.75 km Forecast29 Oct 02:44 UTC27 Oct 22:14 UTCRe-check
28 Oct 11:56 UTC5.32 km Forecast29 Oct 02:44 UTC27 Oct 22:14 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
877 m11-02 08:10 UTC
HULIANWANG DIGUI 227THORAD AGENA D DEB
1.17 km10-28 02:35 UTC
HULIANWANG DIGUI 227THORAD AGENA D DEB
1.83 km10-29 00:33 UTC
HULIANWANG DIGUI 226HULIANWANG DIGUI 227

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 — “HULIANWANG DIGUI 227 ⟷ QIANFAN-50: 3.81 km predicted close approach”, https://orbitalradar.com/conjunction/101189-62251 (accessed 2026-11-02).