COSMOS 2251 DEB CZ-4B DEB

0.025% collision chance on 2025-09-21 22:09:57z

CDM information

Conjunction Data Message description

COSMOS 2251 DEB is risking orbital collision with CZ-4B DEB. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 21, 2025, 10:57 p.m., with a collision probability of 0.025%. The closest distance at TCA is estimated to be 91.0 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: 2025-09-21 22:57:01z

CDM ID: 1161596605

Miss distance: 91.0 (m)

Collision probability: 0.0002504537 (~0.025%)

Last Updated: 1 month ago

Objects comparison

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

COSMOS 2251 DEB	Name	CZ-4B DEB
34672	Norad ID	40533
DEBRIS	Type	DEBRIS
LEO	Orbit	LEO
74.03°	Inclination	74.92°
SMALL	Size	SMALL
CIS	Country	PRC
June 16, 1993	Launch date	Oct. 25, 2013
	Full details

Live tracking

Real-time ground track for COSMOS 2251 DEB and CZ-4B DEB.

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