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On permanent record
United StatesPROJECT SUNCATCHER M1NORAD 100902 · launched Oct 2026Payload
2.55kmPredicted miss distance
RussiaSL-14 R/BNORAD 33505 · launched Jan 2009Rocket body
Live forecastConfirmed by the latest screening, 14 Nov 20:31 UTC.
Closest approach15 Nov 202613:16 UTC
Relative speed3.80 km/sat the closest approach
Altitude507 kmlow Earth orbit
Separation now—live
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US PROJECT SUNCATCHER M1 and RU SL-14 R/B are predicted to reach a closest approach of 2.55 km at 2026-11-15 13:16 UTC, at a relative speed of 3.80 km/s. Confirmed by the latest screening, 14 Nov 20:31 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 mattersOne side of this pass cannot maneuver, so any avoidance decision rests with the other operator. Screening continues as new element sets arrive.

The Two Objects

Dossiers from the satellite directory
PROJECT SUNCATCHER M1Payload
NORAD 100902
CountryUS
Launched2026-10-01
OrbitLEO · 513 × 515 km
COSPAR2026-227V
Maneuver capableUnknown
Profile →Globe →
SL-14 R/BR/B
NORAD 33505
CountryCIS
Launched2009-01-30
OrbitLEO · 495 × 522 km
COSPAR2009-003B
Maneuver capableNo
Spent rocket stage: uncontrolled, tracked by the public catalogue.
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 507 KMISS 420Starlink 550

At 507 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 · PROJECT SUNCATCHER M1 ⟷ SL-14 R/B
2026-11-15 13:162.55 km Live forecast3.80 km/s507 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
14 Nov 20:10 UTC2.55 km Forecast15 Nov 13:16 UTC14 Nov 14:47 UTCRe-check
14 Nov 17:09 UTC2.70 km Forecast15 Nov 13:16 UTC14 Nov 12:46 UTCRe-check
14 Nov 13:49 UTC2.77 km Forecast15 Nov 13:16 UTC14 Nov 06:47 UTCRe-check
14 Nov 13:29 UTC3.33 km Forecast15 Nov 13:16 UTC14 Nov 06:47 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
501 m11-12 09:05 UTC
PROJECT SUNCATCHER M1ELEAF-01
535 m11-12 11:29 UTC
PROJECT SUNCATCHER M1ELEAF-01
656 m11-12 12:13 UTC
PROJECT SUNCATCHER M1ELEAF-01

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.