COSMOS 2143 DEB COSMOS 1638

0.010% collision chance on 2025-11-27 17:11:40z

CDM information

Conjunction Data Message description

COSMOS 2143 DEB is risking orbital collision with COSMOS 1638. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 27, 2025, 5:40 p.m., with a collision probability of 0.010%. The closest distance at TCA is estimated to be 857.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object COSMOS 2143 DEB in its detailed page.

Key information

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

TCA: 2025-11-27 17:40:44z

CDM ID: 1241451830

Miss distance: 857.0 (m)

Collision probability: 0.0001023853 (~0.010%)

Last Updated: 2 weeks, 5 days ago

Objects comparison

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

COSMOS 2143 DEB	Name	COSMOS 1638
57725	Norad ID	15620
DEBRIS	Type	PAYLOAD
LEO	Orbit	LEO
82.81°	Inclination	74.06°
SMALL	Size	MEDIUM
CIS	Country	CIS
May 16, 1991	Launch date	March 21, 1985
	Full details

Live tracking

Real-time ground track for COSMOS 2143 DEB and COSMOS 1638.

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