DELTA 1 DEB COSMOS 1640

0.203% collision chance on 2025-12-10 22:12:28z

CDM information

Conjunction Data Message description

DELTA 1 DEB is risking orbital collision with COSMOS 1640. The time of closest approach (TCA) between the two objects is calculated to be at Dec. 10, 2025, 10:28 p.m., with a collision probability of 0.203%. The closest distance at TCA is estimated to be 72.0 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: 2025-12-10 22:28:20z

CDM ID: 1260620050

Miss distance: 72.0 (m)

Collision probability: 0.002031015 (~0.203%)

Last Updated: 3 days, 19 hours ago

Objects comparison

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

DELTA 1 DEB	Name	COSMOS 1640
42654	Norad ID	15622
DEBRIS	Type	PAYLOAD
SSO	Orbit	LEO
99.73°	Inclination	74.05°
SMALL	Size	MEDIUM
US	Country	CIS
June 12, 1975	Launch date	March 21, 1985
	Full details

Live tracking

Real-time ground track for DELTA 1 DEB and COSMOS 1640.

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