COSMOS 2251 DEB CZ-4 DEB

0.022% collision chance on 2025-08-11 08:08:13z

CDM information

Conjunction Data Message description

COSMOS 2251 DEB is risking orbital collision with CZ-4 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Aug. 11, 2025, 8:13 a.m., with a collision probability of 0.022%. The closest distance at TCA is estimated to be 209.0 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: 2025-08-11 08:13:43z

CDM ID: 1110807304

Miss distance: 209.0 (m)

Collision probability: 0.0002218592 (~0.022%)

Last Updated: 3 weeks, 5 days ago

Objects comparison

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

COSMOS 2251 DEB	Name	CZ-4 DEB
34567	Norad ID	23259
DEBRIS	Type	DEBRIS
LEO	Orbit	SSO
74.04°	Inclination	98.54°
SMALL	Size	SMALL
CIS	Country	PRC
June 16, 1993	Launch date	Sept. 3, 1990
	Full details

Live tracking

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

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