COSMOS 2251 DEB RUBIN 4/SL-8

0.021% collision chance on 2025-11-29 10:11:54z

CDM information

Conjunction Data Message description

COSMOS 2251 DEB is risking orbital collision with RUBIN 4/SL-8. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 29, 2025, 10:54 a.m., with a collision probability of 0.021%. The closest distance at TCA is estimated to be 155.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object COSMOS 2251 DEB in its detailed page.

Key information

Parameters and calculations for this potential in-orbit collision event.

TCA: 2025-11-29 10:54:35z

CDM ID: 1246137345

Miss distance: 155.0 (m)

Collision probability: 0.000214458 (~0.021%)

Last Updated: 2 weeks, 1 day ago

Objects comparison

A comparison of the two objects interested by this conjunction data message.

COSMOS 2251 DEB	Name	RUBIN 4/SL-8
34547	Norad ID	27940
DEBRIS	Type	PAYLOAD
LEO	Orbit	SSO
74.03°	Inclination	98.37°
SMALL	Size	LARGE
CIS	Country	GER
June 16, 1993	Launch date	Sept. 27, 2003
	Full details

Live tracking

Real-time ground track for COSMOS 2251 DEB and RUBIN 4/SL-8.

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