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On permanent record
ChinaOBJECT CNORAD 101153 · launched Oct 2026Payload
3.23kmPredicted miss distance
United StatesLEMUR 2 STELLANORAD 60533 · launched Aug 2024Payload
Final forecastFinal forecast, made 5 min before the pass.
After the passBest estimate, from the orbit data published nearest its time: 3.08 km at 7 Nov 01:19 UTC.
Closest approach7 Nov 202601:19 UTC
Relative speed14.29 km/sat the closest approach
Altitude522 kmlow Earth orbit
Last confirmed7 Nov01:14 UTC · final forecast
Track OBJECT CTrack LEMUR 2 STELLAAll approaches
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CN OBJECT C and US LEMUR 2 STELLA were predicted to reach a closest approach of 3.23 km at 2026-11-07 01:19 UTC, at a relative speed of 14.29 km/s. Final forecast, made 5 min before the pass. Best estimate after the pass, from the orbit data published nearest its time: 3.08 km at 7 Nov 01:19 UTC. This is a cross-border encounter between objects of different nations. 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
OBJECT CPayload
NORAD 101153
CountryPRC
Launched2026-10-23
OrbitLEO · 514 × 522 km
COSPAR2026-241C
Maneuver capableUnknown
Profile →Globe →
LEMUR 2 STELLAPayload
NORAD 60533
CountryUS
Launched2024-08-16
OrbitLEO · 521 × 523 km
COSPAR2024-149BT
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 522 KMISS 420Starlink 550

At 522 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

6 predicted passes under 10 km
Pair history · OBJECT C ⟷ LEMUR 2 STELLA
2026-11-07 04:299.58 km Final forecast · after: 9.14 km14.30 km/s522 kmView →
2026-11-07 02:546.00 km Final forecast · after: 5.60 km14.29 km/s522 kmView →
2026-11-07 01:193.23 km Final forecast · after: 3.08 km14.29 km/s522 kmShown above
2026-11-06 23:443.13 km Final forecast · after: 3.43 km14.28 km/s522 kmView →
2026-11-06 22:096.54 km Final forecast · after: 5.82 km14.28 km/s521 kmView →
2026-11-05 16:037.06 km Final forecast · after: 7.29 km14.13 km/s520 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
11 Nov 02:26 UTC3.08 km Best estimate7 Nov 01:19 UTC7 Nov 04:24 UTCBest estimate
6 Nov 22:14 UTC3.23 km Forecast7 Nov 01:19 UTC6 Nov 10:58 UTCRe-check
6 Nov 20:11 UTC2.74 km Forecast7 Nov 01:19 UTC5 Nov 21:45 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.69 km11-13 01:38 UTC
OBJECT CPIESAT-2 10
2.76 km11-11 06:20 UTC
SHIJIAN 6 04A (SJ-6 04A)LEMUR 2 STELLA
2.77 km11-12 17:12 UTC
YAOGAN-36 05BOBJECT C

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 →

✓ Permanent record. This encounter met the notability thresholds and keeps an archived page after the pass.