DELTA 1 DEB IRIDIUM 33 DEB

0.016% collision chance on 2025-12-10 16:12:04z

CDM information

Conjunction Data Message description

DELTA 1 DEB is risking orbital collision with IRIDIUM 33 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Dec. 10, 2025, 4:04 p.m., with a collision probability of 0.016%. The closest distance at TCA is estimated to be 134.0 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: 2025-12-10 16:04:49z

CDM ID: 1260562130

Miss distance: 134.0 (m)

Collision probability: 0.0001566431 (~0.016%)

Last Updated: 4 days, 6 hours ago

Objects comparison

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

DELTA 1 DEB	Name	IRIDIUM 33 DEB
13580	Norad ID	46435
DEBRIS	Type	DEBRIS
SSO	Orbit	LEO
98.6°	Inclination	86.28°
SMALL	Size	SMALL
US	Country	US
March 5, 1978	Launch date	Sept. 14, 1997
	Full details

Live tracking

Real-time ground track for DELTA 1 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.