OV1-4 TEMPSAT 2

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

CDM information

Conjunction Data Message description

OV1-4 is risking orbital collision with TEMPSAT 2. 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 OV1-4 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: 1253018193

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.

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

Live tracking

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

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