SL-8 R/B CZ-4 DEB

0.013% collision chance on 2025-02-21 14:02:58z

CDM information

Conjunction Data Message description

SL-8 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 Feb. 21, 2025, 2:58 p.m., with a collision probability of 0.013%. The closest distance at TCA is estimated to be 480.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2025-02-21 14:58:04z

CDM ID: 947863382

Miss distance: 480.0 (m)

Collision probability: 0.0001313204 (~0.013%)

Objects comparison

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

SL-8 R/B Name CZ-4 DEB
20775 Norad ID 20853
ROCKET BODY Type DEBRIS
LEO Orbit SSO
82.91° Inclination 98.24°
LARGE Size MEDIUM
CIS Country PRC
Aug. 28, 1990 Launch date Sept. 3, 1990
Full details

Live tracking

Real-time ground track for SL-8 R/B and CZ-4 DEB.


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