IRIDIUM 33 DEB START 1 DEB

0.018% collision chance on 2025-06-30 18:06:39z

CDM information

Conjunction Data Message description

IRIDIUM 33 DEB is risking orbital collision with START 1 DEB. The time of closest approach (TCA) between the two objects is calculated to be at June 30, 2025, 6:39 p.m., with a collision probability of 0.018%. The closest distance at TCA is estimated to be 42.0 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: 2025-06-30 18:39:51z

CDM ID: 1069154818

Miss distance: 42.0 (m)

Collision probability: 0.0001770709 (~0.018%)

Last Updated: 1 week ago

Objects comparison

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

IRIDIUM 33 DEB	Name	START 1 DEB
39777	Norad ID	27752
DEBRIS	Type	DEBRIS
LEO	Orbit	LEO
85.96°	Inclination	75.76°
SMALL	Size	SMALL
US	Country	CIS
Sept. 14, 1997	Launch date	March 25, 1993
	Full details

Live tracking

Real-time ground track for IRIDIUM 33 DEB and START 1 DEB.

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