SL-16 R/B CZ-4 DEB

0.015% collision chance on 2024-08-12 20:08:19z

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 Aug. 12, 2024, 8:19 p.m., with a collision probability of 0.015%. The closest distance at TCA is estimated to be 106.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2024-08-12 20:19:00z

CDM ID: 787576614

Miss distance: 106.0 (m)

Collision probability: 0.0001470319 (~0.015%)

Objects comparison

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

SL-16 R/B Name CZ-4 DEB
17974 Norad ID 20848
ROCKET BODY Type DEBRIS
LEO Orbit SSO
71.01° Inclination 99.02°
LARGE Size MEDIUM
CIS Country PRC
May 13, 1987 Launch date Sept. 3, 1990
Full details

Live tracking

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


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