OV1-20/OV1-21 AKM CZ-4B R/B

0.011% collision chance on 2025-04-19 00:04:08z

CDM information

Conjunction Data Message description

OV1-20/OV1-21 AKM is risking orbital collision with CZ-4B R/B. The time of closest approach (TCA) between the two objects is calculated to be at April 19, 2025, 12:08 a.m., with a collision probability of 0.011%. The closest distance at TCA is estimated to be 153.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2025-04-19 00:08:41z

CDM ID: 997888624

Miss distance: 153.0 (m)

Collision probability: 0.0001068299 (~0.011%)

Objects comparison

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

OV1-20/OV1-21 AKM Name CZ-4B R/B
5395 Norad ID 48158
ROCKET BODY Type ROCKET BODY
LEO Orbit SSO
87.62° Inclination 99.45°
LARGE Size LARGE
US Country PRC
Aug. 7, 1971 Launch date April 8, 2021
Full details

Live tracking

Real-time ground track for OV1-20/OV1-21 AKM and CZ-4B R/B.


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