CZ-4B R/B DELTA 1 DEB

0.012% collision chance on 2025-10-12 00:10:04z

CDM information

Conjunction Data Message description

CZ-4B R/B is risking orbital collision with DELTA 1 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Oct. 12, 2025, 12:04 a.m., with a collision probability of 0.012%. The closest distance at TCA is estimated to be 144.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2025-10-12 00:04:10z

CDM ID: 1184744432

Miss distance: 144.0 (m)

Collision probability: 0.0001244516 (~0.012%)

Objects comparison

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

CZ-4B R/B Name DELTA 1 DEB
46470 Norad ID 19311
ROCKET BODY Type DEBRIS
LEO Orbit SSO
66.06° Inclination 97.65°
LARGE Size SMALL
PRC Country US
Sept. 21, 2020 Launch date Jan. 22, 1975
Full details

Live tracking

Real-time ground track for CZ-4B R/B and DELTA 1 DEB.


Newsletter sign-up

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