RUCOSMOS 2613 and SKORKSLV-II R/B were predicted to reach a closest approach of 6.89 km at 2026-10-27 17:42 UTC, at a relative speed of 5.54 km/s. Final forecast, made 19 min 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.
At 548 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 · COSMOS 2613 ⟷ KSLV-II R/B
2026-10-28 03:167.78 km Withdrawn5.54 km/s549 kmView →
2026-10-28 01:416.84 km Withdrawn5.54 km/s548 kmView →
2026-10-27 17:426.89 km Final forecast5.54 km/s548 kmShown above
2026-10-27 16:076.21 km Final forecast5.54 km/s548 kmView →
2026-10-26 18:359.45 km Withdrawn5.54 km/s550 kmView →
2026-10-26 13:486.68 km Final forecast5.54 km/s550 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 Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.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
27 Oct 13:43 UTC6.89 km Forecast27 Oct 17:42 UTC27 Oct 07:43 UTCRe-check
27 Oct 13:24 UTC7.51 km Forecast27 Oct 17:42 UTC27 Oct 07:43 UTCScreen
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 2613 ⟷ KSLV-II R/B: 6.89 km predicted close approach”, https://orbitalradar.com/conjunction/100969-68763 (accessed 2026-10-29).
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