DELTA 1 DEB COSMOS 2251 DEB

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

CDM information

Conjunction Data Message description

DELTA 1 DEB is risking orbital collision with COSMOS 2251 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.

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

CDM ID: 1138569533

Miss distance: 28.0 (m)

Collision probability: 0.0001727296 (~0.017%)

Last Updated: 3 days, 10 hours ago

Objects comparison

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

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

Live tracking

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

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