CZ-4 DEB CZ-4C DEB

0.010% collision chance on 2025-08-04 20:08:44z

CDM information

Conjunction Data Message description

CZ-4 DEB is risking orbital collision with CZ-4C DEB. The time of closest approach (TCA) between the two objects is calculated to be at Aug. 4, 2025, 8:44 p.m., with a collision probability of 0.010%. The closest distance at TCA is estimated to be 118.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object CZ-4 DEB in its detailed page.

Key information

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

TCA: 2025-08-04 20:44:07z

CDM ID: 1105174987

Miss distance: 118.0 (m)

Collision probability: 0.0001036703 (~0.010%)

Last Updated: 2 months, 3 weeks ago

Objects comparison

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

CZ-4 DEB	Name	CZ-4C DEB
20887	Norad ID	35249
DEBRIS	Type	DEBRIS
SSO	Orbit	SSO
98.41°	Inclination	97.76°
SMALL	Size	SMALL
PRC	Country	PRC
Sept. 3, 1990	Launch date	Nov. 11, 2007
	Full details

Live tracking

Real-time ground track for CZ-4 DEB and CZ-4C DEB.

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