EXPLORER 25 (INJUN-4) OBJECT K

0.024% collision chance on 2025-12-11 23:12:51z

CDM information

Conjunction Data Message description

EXPLORER 25 (INJUN-4) is risking orbital collision with OBJECT K. The time of closest approach (TCA) between the two objects is calculated to be at Dec. 11, 2025, 11:51 p.m., with a collision probability of 0.024%. The closest distance at TCA is estimated to be 855.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object EXPLORER 25 (INJUN-4) in its detailed page.

Key information

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

TCA: 2025-12-11 23:51:12z

CDM ID: 1261729403

Miss distance: 855.0 (m)

Collision probability: 0.0002439398 (~0.024%)

Last Updated: 2 days, 16 hours ago

Objects comparison

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

EXPLORER 25 (INJUN-4)	Name	OBJECT K
932	Norad ID	42834
PAYLOAD	Type	UNKNOWN
HEO	Orbit	SSO
81.34°	Inclination	97.4°
MEDIUM	Size	MEDIUM
US	Country	TBD
Nov. 21, 1964	Launch date	July 14, 2017
	Full details

Live tracking

Real-time ground track for EXPLORER 25 (INJUN-4) and OBJECT K.

Return to all CDMs

Newsletter sign-up

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