CZ-6A DEB CZ-4 DEB

0.012% collision chance on 2025-08-17 07:08:34z

CDM information

Conjunction Data Message description

CZ-6A 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. 17, 2025, 7:34 a.m., with a collision probability of 0.012%. The closest distance at TCA is estimated to be 238.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object CZ-6A DEB in its detailed page.

Key information

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

TCA: 2025-08-17 07:34:53z

CDM ID: 1120445648

Miss distance: 238.0 (m)

Collision probability: 0.0001162764 (~0.012%)

Last Updated: 2 weeks, 4 days ago

Objects comparison

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

CZ-6A DEB	Name	CZ-4 DEB
61308	Norad ID	20858
DEBRIS	Type	DEBRIS
LEO	Orbit	SSO
88.9°	Inclination	98.28°
SMALL	Size	MEDIUM
PRC	Country	PRC
Aug. 6, 2024	Launch date	Sept. 3, 1990
	Full details

Live tracking

Real-time ground track for CZ-6A DEB and CZ-4 DEB.

Return to all CDMs

Newsletter sign-up

Weekly statistics, charts and insights to help you stay on top of the space industry.