COSMOS 2251 DEB DELTA 1 DEB

0.017% collision chance on 2025-09-02 02:09:11z

CDM information

Conjunction Data Message description

COSMOS 2251 DEB is risking orbital collision with DELTA 1 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 2, 2025, 2:11 a.m., with a collision probability of 0.017%. The closest distance at TCA is estimated to be 28.0 meters.

Key information

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

CDM image for a debris

TCA: 2025-09-02 02:11:26z

CDM ID: 1138588782

Miss distance: 28.0 (m)

Collision probability: 0.0001727296 (~0.017%)

Objects comparison

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

COSMOS 2251 DEB Name DELTA 1 DEB
34001 Norad ID 12209
DEBRIS Type DEBRIS
LEO Orbit SSO
74.04° Inclination 98.65°
SMALL Size SMALL
CIS Country US
June 16, 1993 Launch date March 5, 1978
Full details

Live tracking

Real-time ground track for COSMOS 2251 DEB and DELTA 1 DEB.


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