CZ-2D DEB CZ-4 DEB

0.024% collision chance on 2025-08-06 01:08:41z

CDM information

Conjunction Data Message description

CZ-2D 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. 6, 2025, 1:41 a.m., with a collision probability of 0.024%. The closest distance at TCA is estimated to be 108.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object CZ-2D DEB in its detailed page.

Key information

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

TCA: 2025-08-06 01:41:51z

CDM ID: 1107351438

Miss distance: 108.0 (m)

Collision probability: 0.000238252 (~0.024%)

Last Updated: 1 month ago

Objects comparison

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

CZ-2D DEB	Name	CZ-4 DEB
43413	Norad ID	20858
DEBRIS	Type	DEBRIS
SSO	Orbit	SSO
97.93°	Inclination	98.28°
SMALL	Size	MEDIUM
PRC	Country	PRC
Nov. 25, 2013	Launch date	Sept. 3, 1990
	Full details

Live tracking

Real-time ground track for CZ-2D DEB and CZ-4 DEB.

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