Home›Maneuver Tracker›Close Approaches›TIANYI 52 ⟷ OBJECT L
MediumProximity
ChinaTIANYI 52NORAD 100742 · launched Sep 2026Payload
8.35kmPredicted miss distance
TBDOBJECT LNORAD 67258 · launched Dec 2025Payload
WithdrawnNewer orbit data from 23 Oct 04:43 UTC no longer shows this pass. Within 40 minutes of the predicted time the two stayed at least 14.5 km apart. The most recent pass the screening confirmed up to its time: 4.48 km on 24 Oct 09:03 UTC.
Closest approach24 Oct 202609:51 UTC
Relative speed14.80 km/sat the closest approach
Altitude494 kmlow Earth orbit
Last confirmed23 Oct18:09 UTC · withdrawn
Track TIANYI 52Track OBJECT LAll approaches
Share

CN TIANYI 52 and TBD OBJECT L were predicted to reach a closest approach of 8.35 km at 2026-10-24 09:51 UTC, at a relative speed of 14.80 km/s. Withdrawn: newer orbit data from 23 Oct 04:43 UTC no longer shows this pass. Within 40 minutes of the predicted time the two stayed at least 14.5 km apart. The figure above is the forecast as it was published; the newer check is shown beside it, and nothing is overwritten. 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
TIANYI 52Payload
NORAD 100742
CountryPRC
Launched2026-09-17
OrbitLEO · 491 × 497 km
COSPAR2026-215B
Maneuver capableUnknown
Profile →Globe →
OBJECT LPayload
NORAD 67258
CountryTBD
Launched2025-12-28
OrbitLEO · 482 × 500 km
COSPAR2025-313L
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 494 KMISS 420Starlink 550

At 494 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 · TIANYI 52 ⟷ OBJECT L
2026-10-24 09:518.35 km Withdrawn14.80 km/s494 kmShown above
2026-10-24 09:034.48 km Final forecast14.80 km/s495 kmView →

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
23 Oct 18:29 UTC14.54 km Withdrawn24 Oct 09:51 UTC23 Oct 04:43 UTCRe-check
23 Oct 14:49 UTC8.35 km Forecast24 Oct 09:51 UTC22 Oct 20:51 UTCRe-check
23 Oct 14:29 UTC8.85 km Forecast24 Oct 09:51 UTC22 Oct 20:51 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
3.89 km10-20 16:44 UTC
TIANYI 52FLOCK 4H 14
6.01 km10-23 09:28 UTC
TIANYI 52KANOPUS-V 4
6.70 km10-23 12:31 UTC
TIANYI 52STARLINK-4772

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 — “TIANYI 52 ⟷ OBJECT L: 8.35 km forecast, withdrawn”, https://orbitalradar.com/conjunction/100742-67258 (accessed 2026-10-24).