CZ-4B R/B COSMOS 1818 COOLANT

0.027% collision chance on 2025-09-13 19:09:04z

CDM information

Conjunction Data Message description

CZ-4B R/B is risking orbital collision with COSMOS 1818 COOLANT. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 13, 2025, 7:04 p.m., with a collision probability of 0.027%. The closest distance at TCA is estimated to be 960.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2025-09-13 19:04:17z

CDM ID: 1149707229

Miss distance: 960.0 (m)

Collision probability: 0.0002728587 (~0.027%)

Objects comparison

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

CZ-4B R/B Name COSMOS 1818 COOLANT
25942 Norad ID 36935
ROCKET BODY Type DEBRIS
SSO Orbit LEO
98.76° Inclination 65.01°
LARGE Size SMALL
PRC Country CIS
Oct. 14, 1999 Launch date Feb. 1, 1987
Full details

Live tracking

Real-time ground track for CZ-4B R/B and COSMOS 1818 COOLANT.


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