IRIDIUM 33 DEB CZ-4B R/B

0.031% collision chance on 2025-11-08 11:11:10z

CDM information

Conjunction Data Message description

IRIDIUM 33 DEB is risking orbital collision with CZ-4B R/B. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 8, 2025, 11:10 a.m., with a collision probability of 0.031%. The closest distance at TCA is estimated to be 115.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object IRIDIUM 33 DEB in its detailed page.

Key information

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

TCA: 2025-11-08 11:10:56z

CDM ID: 1219227249

Miss distance: 115.0 (m)

Collision probability: 0.0003069476 (~0.031%)

Last Updated: 1 month, 1 week ago

Objects comparison

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

IRIDIUM 33 DEB	Name	CZ-4B R/B
38228	Norad ID	32063
DEBRIS	Type	ROCKET BODY
LEO	Orbit	SSO
86.29°	Inclination	98.19°
SMALL	Size	LARGE
US	Country	PRC
Sept. 14, 1997	Launch date	Sept. 19, 2007
	Full details

Live tracking

Real-time ground track for IRIDIUM 33 DEB and CZ-4B R/B.

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