Home›Maneuver Tracker›Close Approaches›COSMOS 2218 ⟷ N-1 R/B
HighProximity
RussiaCOSMOS 2218NORAD 22207 · launched Oct 1992Military payload
3.92kmPredicted miss distance
JapanN-1 R/BNORAD 8352 · launched Sep 1975Rocket body
Final forecastFinal forecast, made minutes before the pass.
Closest approach22 Oct 202601:04 UTC
Relative speed7.72 km/sat the closest approach
Altitude1,013 kmlow Earth orbit
Last confirmed22 Oct01:04 UTC · final forecast
Track COSMOS 2218Track N-1 R/BAll approaches
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RU COSMOS 2218 and JP N-1 R/B were predicted to reach a closest approach of 3.92 km at 2026-10-22 01:04 UTC, at a relative speed of 7.72 km/s. Final forecast, made minutes before the pass. 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
COSMOS 2218Payload
NORAD 22207
CountryCIS
Launched1992-10-29
OrbitLEO · 964 × 1,013 km
COSPAR1992-073A
Maneuver capableUnknown
Profile →Globe →
N-1 R/BR/B
NORAD 8352
CountryJPN
Launched1975-09-09
OrbitLEO · 969 × 1,095 km
COSPAR1975-082B
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 · 1013 KMISS 420Starlink 550

At 1013 km this pass sits inside the most congested band in low Earth orbit, home to the debris left by the 2007 ASAT test and the 2009 collision. 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 · COSMOS 2218 ⟷ N-1 R/B
2026-10-22 01:043.92 km Final forecast7.72 km/s1,013 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
21 Oct 13:50 UTC3.92 km Forecast22 Oct 01:04 UTC21 Oct 06:38 UTCRe-check
21 Oct 13:30 UTC7.12 km Forecast22 Oct 01:04 UTC21 Oct 06:38 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
855 m10-19 05:30 UTC
COSMOS 2218COSMOS 397 DEB *
2.38 km10-22 22:17 UTC
COSMOS 2218SL-8 R/B
3.69 km10-18 13:27 UTC
COSMOS 2218SL-8 R/B

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 — “COSMOS 2218 ⟷ N-1 R/B: 3.92 km predicted close approach”, https://orbitalradar.com/conjunction/22207-8352 (accessed 2026-10-23).