COSMOS 407 IRIDIUM 33 DEB

0.035% collision chance on 2025-10-29 00:10:19z

CDM information

Conjunction Data Message description

COSMOS 407 is risking orbital collision with IRIDIUM 33 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Oct. 29, 2025, 12:19 a.m., with a collision probability of 0.035%. The closest distance at TCA is estimated to be 628.0 meters.

Key information

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

CDM image for a payload

TCA: 2025-10-29 00:19:04z

CDM ID: 1205584233

Miss distance: 628.0 (m)

Collision probability: 0.0003493835 (~0.035%)

Objects comparison

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

COSMOS 407 Name IRIDIUM 33 DEB
5174 Norad ID 35052
PAYLOAD Type DEBRIS
LEO Orbit LEO
74.04° Inclination 86.33°
LARGE Size SMALL
CIS Country US
April 23, 1971 Launch date Sept. 14, 1997
Full details

Live tracking

Real-time ground track for COSMOS 407 and IRIDIUM 33 DEB.


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