COSMOS 923 COSMOS 2251 DEB

0.023% collision chance on 2025-09-13 07:09:40z

CDM information

Conjunction Data Message description

COSMOS 923 is risking orbital collision with COSMOS 2251 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 13, 2025, 7:40 a.m., with a collision probability of 0.023%. The closest distance at TCA is estimated to be 852.0 meters.

Key information

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

CDM image for a payload

TCA: 2025-09-13 07:40:31z

CDM ID: 1148566816

Miss distance: 852.0 (m)

Collision probability: 0.000229474 (~0.023%)

Objects comparison

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

COSMOS 923 Name COSMOS 2251 DEB
10120 Norad ID 35580
PAYLOAD Type DEBRIS
LEO Orbit LEO
74.05° Inclination 73.9°
LARGE Size SMALL
CIS Country CIS
July 1, 1977 Launch date June 16, 1993
Full details

Live tracking

Real-time ground track for COSMOS 923 and COSMOS 2251 DEB.


Newsletter sign-up

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