COSMOS 397 DEB IRIDIUM 920

0.074% collision chance on 2025-12-02 07:12:26z

CDM information

Conjunction Data Message description

COSMOS 397 DEB is risking orbital collision with IRIDIUM 920. The time of closest approach (TCA) between the two objects is calculated to be at Dec. 2, 2025, 7:26 a.m., with a collision probability of 0.074%. The closest distance at TCA is estimated to be 258.0 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: 2025-12-02 07:26:49z

CDM ID: 1249798424

Miss distance: 258.0 (m)

Collision probability: 0.0007434542 (~0.074%)

Last Updated: 1 week, 5 days ago

Objects comparison

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

COSMOS 397 DEB	Name	IRIDIUM 920
6843	Norad ID	24871
DEBRIS	Type	PAYLOAD
LEO	Orbit	LEO
65.66°	Inclination	86.4°
SMALL	Size	LARGE
CIS	Country	US
Feb. 25, 1971	Launch date	July 9, 1997
	Full details

Live tracking

Real-time ground track for COSMOS 397 DEB and IRIDIUM 920.

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