SL-16 R/B CZ-4 DEB

0.233% collision chance on 2025-11-21 13:11:41z

CDM information

Conjunction Data Message description

SL-16 R/B is risking orbital collision with CZ-4 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 21, 2025, 1:41 p.m., with a collision probability of 0.233%. The closest distance at TCA is estimated to be 45.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2025-11-21 13:41:46z

CDM ID: 1237319493

Miss distance: 45.0 (m)

Collision probability: 0.002329173 (~0.233%)

Objects comparison

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

SL-16 R/B Name CZ-4 DEB
31793 Norad ID 28071
ROCKET BODY Type DEBRIS
LEO Orbit SSO
70.98° Inclination 98.6°
LARGE Size SMALL
CIS Country PRC
June 29, 2007 Launch date Oct. 14, 1999
Full details

Live tracking

Real-time ground track for SL-16 R/B and CZ-4 DEB.


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