COSMOS 1691 COSMOS 2491 DEB

0.011% collision chance on 2025-09-11 22:09:45z

CDM information

Conjunction Data Message description

COSMOS 1691 is risking orbital collision with COSMOS 2491 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 11, 2025, 10:45 p.m., with a collision probability of 0.011%. The closest distance at TCA is estimated to be 871.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object COSMOS 1691 in its detailed page.

Key information

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

TCA: 2025-09-11 22:45:31z

CDM ID: 1147224470

Miss distance: 871.0 (m)

Collision probability: 0.0001080099 (~0.011%)

Last Updated: 1 day, 12 hours ago

Objects comparison

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

COSMOS 1691	Name	COSMOS 2491 DEB
16139	Norad ID	45172
PAYLOAD	Type	DEBRIS
LEO	Orbit	LEO
82.61°	Inclination	82.46°
MEDIUM	Size	SMALL
CIS	Country	CIS
Oct. 9, 1985	Launch date	Dec. 25, 2013
	Full details

Live tracking

Real-time ground track for COSMOS 1691 and COSMOS 2491 DEB.

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