CZ-4B R/B COSMOS 1275 DEB

0.020% collision chance on 2025-10-11 15:10:16z

CDM information

Conjunction Data Message description

CZ-4B R/B is risking orbital collision with COSMOS 1275 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Oct. 11, 2025, 3:16 p.m., with a collision probability of 0.020%. The closest distance at TCA is estimated to be 271.0 meters.

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

Key information

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

TCA: 2025-10-11 15:16:08z

CDM ID: 1185519861

Miss distance: 271.0 (m)

Collision probability: 0.0001959366 (~0.020%)

Last Updated: 1 week, 5 days ago

Objects comparison

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

CZ-4B R/B	Name	COSMOS 1275 DEB
43656	Norad ID	17639
ROCKET BODY	Type	DEBRIS
SSO	Orbit	LEO
99.38°	Inclination	82.99°
LARGE	Size	SMALL
PRC	Country	CIS
Oct. 24, 2018	Launch date	June 4, 1981
	Full details

Live tracking

Real-time ground track for CZ-4B R/B and COSMOS 1275 DEB.

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