CSTB 1 CZ-4 DEB

0.010% collision chance on 2025-09-28 18:09:25z

CDM information

Conjunction Data Message description

CSTB 1 is risking orbital collision with CZ-4 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 28, 2025, 6:25 p.m., with a collision probability of 0.010%. The closest distance at TCA is estimated to be 335.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object CSTB 1 in its detailed page.

Key information

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

TCA: 2025-09-28 18:25:03z

CDM ID: 1170040713

Miss distance: 335.0 (m)

Collision probability: 0.0001025812 (~0.010%)

Last Updated: 3 weeks ago

Objects comparison

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

CSTB 1	Name	CZ-4 DEB
31122	Norad ID	35327
PAYLOAD	Type	DEBRIS
SSO	Orbit	SSO
98.4°	Inclination	98.47°
SMALL	Size	SMALL
US	Country	PRC
April 17, 2007	Launch date	Oct. 14, 1999
	Full details

Live tracking

Real-time ground track for CSTB 1 and CZ-4 DEB.

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