DELTA 1 DEB CZ-4B DEB

0.025% collision chance on 2025-10-04 06:10:25z

CDM information

Conjunction Data Message description

DELTA 1 DEB is risking orbital collision with CZ-4B DEB. The time of closest approach (TCA) between the two objects is calculated to be at Oct. 4, 2025, 6:25 a.m., with a collision probability of 0.025%. The closest distance at TCA is estimated to be 172.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object DELTA 1 DEB in its detailed page.

Key information

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

TCA: 2025-10-04 06:25:26z

CDM ID: 1177339845

Miss distance: 172.0 (m)

Collision probability: 0.000254401 (~0.025%)

Last Updated: 3 weeks, 5 days ago

Objects comparison

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

DELTA 1 DEB	Name	CZ-4B DEB
21450	Norad ID	29216
DEBRIS	Type	DEBRIS
SSO	Orbit	SSO
99.87°	Inclination	98.81°
SMALL	Size	SMALL
US	Country	PRC
June 12, 1975	Launch date	May 15, 2002
	Full details

Live tracking

Real-time ground track for DELTA 1 DEB and CZ-4B DEB.

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