OKEAN 4 H-2A R/B

1.928% collision chance on 2025-05-25 20:05:46z

CDM information

Conjunction Data Message description

OKEAN 4 is risking orbital collision with H-2A R/B. The time of closest approach (TCA) between the two objects is calculated to be at May 25, 2025, 8:46 p.m., with a collision probability of 1.928%. The closest distance at TCA is estimated to be 83.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object OKEAN 4 in its detailed page.

Key information

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

TCA: 2025-05-25 20:46:21z

CDM ID: 1034920522

Miss distance: 83.0 (m)

Collision probability: 0.01927511 (~1.928%)

Last Updated: 1 month, 1 week ago

Objects comparison

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

OKEAN 4	Name	H-2A R/B
23317	Norad ID	33500
PAYLOAD	Type	ROCKET BODY
LEO	Orbit	SSO
82.53°	Inclination	98.25°
LARGE	Size	LARGE
CIS	Country	JPN
Oct. 11, 1994	Launch date	Jan. 23, 2009
	Full details

Live tracking

Real-time ground track for OKEAN 4 and H-2A R/B.

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