Home›Maneuver Tracker›Close Approaches›YAOGAN 22 ⟷ SL-8 R/B
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On permanent record
ChinaYAOGAN 22NORAD 40275 · launched Oct 2014Military payload
4.25kmPredicted miss distance
RussiaSL-8 R/BNORAD 3131 · launched Feb 1968Rocket body
Live forecastConfirmed by the latest screening, 14 Nov 04:43 UTC.
Closest approach14 Nov 202607:02 UTC
Relative speed13.42 km/sat the closest approach
Altitude1,208 kmlow Earth orbit
Separation now—live
Track YAOGAN 22Track SL-8 R/BAll approaches
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CN YAOGAN 22 and RU SL-8 R/B are predicted to reach a closest approach of 4.25 km at 2026-11-14 07:02 UTC, at a relative speed of 13.42 km/s. Confirmed by the latest screening, 14 Nov 04:43 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
YAOGAN 22Payload
NORAD 40275
CountryPRC
Launched2014-10-20
OrbitLEO · 1,197 × 1,206 km
COSPAR2014-063A
Maneuver capableUnknown
Profile →Globe →
SL-8 R/BR/B
NORAD 3131
CountryCIS
Launched1968-02-20
OrbitLEO · 1,182 × 1,202 km
COSPAR1968-011B
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 · 1208 KMISS 420Starlink 550

At 1208 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 22 ⟷ SL-8 R/B
2026-11-14 07:024.25 km Live forecast13.42 km/s1,208 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 03:02 UTC4.25 km Forecast14 Nov 07:02 UTC13 Nov 09:32 UTCRe-check
13 Nov 21:22 UTC4.24 km Forecast14 Nov 07:02 UTC13 Nov 06:00 UTCRe-check
13 Nov 21:02 UTC6.14 km Forecast14 Nov 07:02 UTC13 Nov 06:00 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
1.46 km11-08 05:47 UTC
YAOGAN 22ONEWEB-0660
2.21 km11-14 00:31 UTC
YAOGAN 22ONEWEB-0200
2.95 km11-13 05:26 UTC
YAOGAN 22ONEWEB-0576

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.