PEGASUS DEB COSMOS 1821

0.015% collision chance on 2025-09-02 21:09:40z

CDM information

Conjunction Data Message description

PEGASUS DEB is risking orbital collision with COSMOS 1821. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 2, 2025, 9:40 p.m., with a collision probability of 0.015%. The closest distance at TCA is estimated to be 826.0 meters.

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

Key information

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

TCA: 2025-09-02 21:40:08z

CDM ID: 1136939370

Miss distance: 826.0 (m)

Collision probability: 0.0001510056 (~0.015%)

Last Updated: 1 month, 3 weeks ago

Objects comparison

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

PEGASUS DEB	Name	COSMOS 1821
40242	Norad ID	17525
DEBRIS	Type	PAYLOAD
LEO	Orbit	LEO
81.88°	Inclination	82.92°
SMALL	Size	LARGE
US	Country	CIS
May 19, 1994	Launch date	Feb. 18, 1987
	Full details

Live tracking

Real-time ground track for PEGASUS DEB and COSMOS 1821.

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