COSMOS 1861 THOR ABLESTAR DEB

0.011% collision chance on 2025-11-24 20:11:34z

CDM information

Conjunction Data Message description

COSMOS 1861 is risking orbital collision with THOR ABLESTAR DEB. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 24, 2025, 8:34 p.m., with a collision probability of 0.011%. The closest distance at TCA is estimated to be 391.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object COSMOS 1861 in its detailed page.

Key information

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

TCA: 2025-11-24 20:34:06z

CDM ID: 1240877505

Miss distance: 391.0 (m)

Collision probability: 0.0001079318 (~0.011%)

Last Updated: 2 weeks, 6 days ago

Objects comparison

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

COSMOS 1861	Name	THOR ABLESTAR DEB
18129	Norad ID	3744
PAYLOAD	Type	DEBRIS
LEO	Orbit	LEO
82.93°	Inclination	66.98°
LARGE	Size	SMALL
CIS	Country	US
June 23, 1987	Launch date	June 29, 1961
	Full details

Live tracking

Real-time ground track for COSMOS 1861 and THOR ABLESTAR DEB.

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