DELTA 1 R/B COSMOS 2251 DEB

0.203% collision chance on 2025-09-24 16:09:39z

CDM information

Conjunction Data Message description

DELTA 1 R/B is risking orbital collision with COSMOS 2251 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 24, 2025, 4:39 p.m., with a collision probability of 0.203%. The closest distance at TCA is estimated to be 60.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object DELTA 1 R/B in its detailed page.

Key information

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

TCA: 2025-09-24 16:39:20z

CDM ID: 1164958538

Miss distance: 60.0 (m)

Collision probability: 0.0020309 (~0.203%)

Last Updated: 1 month ago

Objects comparison

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

DELTA 1 R/B	Name	COSMOS 2251 DEB
1433	Norad ID	37959
ROCKET BODY	Type	DEBRIS
SSO	Orbit	LEO
98.55°	Inclination	74.01°
MEDIUM	Size	SMALL
US	Country	CIS
July 2, 1965	Launch date	June 16, 1993
	Full details

Live tracking

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

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