TEMPSAT 2 OV1-4

0.200% collision chance on 2025-12-07 08:12:38z

CDM information

Conjunction Data Message description

TEMPSAT 2 is risking orbital collision with OV1-4. The time of closest approach (TCA) between the two objects is calculated to be at Dec. 7, 2025, 8:38 a.m., with a collision probability of 0.200%. The closest distance at TCA is estimated to be 483.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object TEMPSAT 2 in its detailed page.

Key information

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

TCA: 2025-12-07 08:38:11z

CDM ID: 1253018940

Miss distance: 483.0 (m)

Collision probability: 0.001995533 (~0.200%)

Last Updated: 1 week, 2 days ago

Objects comparison

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

TEMPSAT 2	Name	OV1-4
4168	Norad ID	2121
PAYLOAD	Type	PAYLOAD
LEO	Orbit	SSO
70.01°	Inclination	144.5°
SMALL	Size	MEDIUM
US	Country	US
Sept. 30, 1969	Launch date	March 30, 1966
	Full details

Live tracking

Real-time ground track for TEMPSAT 2 and OV1-4.

Return to all CDMs

Newsletter sign-up

Weekly statistics, charts and insights to help you stay on top of the space industry.