CZ-4 DEB SL-8 R/B

0.050% collision chance on 2025-09-03 03:09:54z

CDM information

Conjunction Data Message description

CZ-4 DEB is risking orbital collision with SL-8 R/B. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 3, 2025, 3:54 a.m., with a collision probability of 0.050%. The closest distance at TCA is estimated to be 879.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object CZ-4 DEB in its detailed page.

Key information

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

TCA: 2025-09-03 03:54:01z

CDM ID: 1138574023

Miss distance: 879.0 (m)

Collision probability: 0.0005032071 (~0.050%)

Last Updated: 5 days, 12 hours ago

Objects comparison

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

CZ-4 DEB	Name	SL-8 R/B
20912	Norad ID	21419
DEBRIS	Type	ROCKET BODY
SSO	Orbit	LEO
98.53°	Inclination	74.04°
SMALL	Size	LARGE
PRC	Country	CIS
Sept. 3, 1990	Launch date	June 11, 1991
	Full details

Live tracking

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

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