CZ-4 DEB IRIDIUM 33 DEB

0.045% collision chance on 2025-07-12 03:07:33z

CDM information

Conjunction Data Message description

CZ-4 DEB is risking orbital collision with IRIDIUM 33 DEB. The time of closest approach (TCA) between the two objects is calculated to be at July 12, 2025, 3:33 a.m., with a collision probability of 0.045%. The closest distance at TCA is estimated to be 47.0 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: 2025-07-12 03:33:32z

CDM ID: 1080976842

Miss distance: 47.0 (m)

Collision probability: 0.0004549408 (~0.045%)

Last Updated: 1 month, 3 weeks ago

Objects comparison

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

CZ-4 DEB	Name	IRIDIUM 33 DEB
35378	Norad ID	34088
DEBRIS	Type	DEBRIS
SSO	Orbit	LEO
97.84°	Inclination	86.38°
SMALL	Size	MEDIUM
PRC	Country	US
Oct. 23, 2006	Launch date	Sept. 14, 1997
	Full details

Live tracking

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

Return to all CDMs

Newsletter sign-up

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