H-2A DEB * CZ-4 DEB

0.011% collision chance on 2025-06-09 13:06:31z

CDM information

Conjunction Data Message description

H-2A DEB * is risking orbital collision with CZ-4 DEB. The time of closest approach (TCA) between the two objects is calculated to be at June 9, 2025, 1:31 p.m., with a collision probability of 0.011%. The closest distance at TCA is estimated to be 571.0 meters.

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

Key information

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

TCA: 2025-06-09 13:31:45z

CDM ID: 1047719034

Miss distance: 571.0 (m)

Collision probability: 0.0001061079 (~0.011%)

Last Updated: 1 month ago

Objects comparison

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

H-2A DEB *	Name	CZ-4 DEB
48551	Norad ID	20900
DEBRIS	Type	DEBRIS
SSO	Orbit	SSO
98.0°	Inclination	99.05°
SMALL	Size	SMALL
JPN	Country	PRC
Oct. 29, 2018	Launch date	Sept. 3, 1990
	Full details

Live tracking

Real-time ground track for H-2A DEB * and CZ-4 DEB.

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