COSMOS 1249 COOLANT OV1-4

0.113% collision chance on 2025-09-17 06:09:28z

CDM information

Conjunction Data Message description

COSMOS 1249 COOLANT is risking orbital collision with OV1-4. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 17, 2025, 6:28 a.m., with a collision probability of 0.113%. The closest distance at TCA is estimated to be 163.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object COSMOS 1249 COOLANT in its detailed page.

Key information

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

TCA: 2025-09-17 06:28:28z

CDM ID: 1156013235

Miss distance: 163.0 (m)

Collision probability: 0.001125142 (~0.113%)

Last Updated: 1 month, 1 week ago

Objects comparison

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

COSMOS 1249 COOLANT	Name	OV1-4
26506	Norad ID	2121
DEBRIS	Type	PAYLOAD
LEO	Orbit	SSO
64.96°	Inclination	144.51°
SMALL	Size	MEDIUM
CIS	Country	US
March 5, 1981	Launch date	March 30, 1966
	Full details

Live tracking

Real-time ground track for COSMOS 1249 COOLANT and OV1-4.

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