COSMOS 397 DEB * COSMOS 2251 DEB

0.015% collision chance on 2025-09-04 19:09:55z

CDM information

Conjunction Data Message description

COSMOS 397 DEB * is risking orbital collision with COSMOS 2251 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 4, 2025, 7:55 p.m., with a collision probability of 0.015%. The closest distance at TCA is estimated to be 214.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object COSMOS 397 DEB * in its detailed page.

Key information

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

TCA: 2025-09-04 19:55:59z

CDM ID: 1141016406

Miss distance: 214.0 (m)

Collision probability: 0.0001528563 (~0.015%)

Last Updated: 1 month, 2 weeks ago

Objects comparison

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

COSMOS 397 DEB *	Name	COSMOS 2251 DEB
5527	Norad ID	34454
DEBRIS	Type	DEBRIS
LEO	Orbit	LEO
66.87°	Inclination	74.06°
SMALL	Size	SMALL
CIS	Country	CIS
Feb. 25, 1971	Launch date	June 16, 1993
	Full details

Live tracking

Real-time ground track for COSMOS 397 DEB * and COSMOS 2251 DEB.

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