DELTA 1 DEB CZ-4C R/B

0.013% collision chance on 2025-04-16 07:04:28z

CDM information

Conjunction Data Message description

DELTA 1 DEB is risking orbital collision with CZ-4C R/B. The time of closest approach (TCA) between the two objects is calculated to be at April 16, 2025, 7:28 a.m., with a collision probability of 0.013%. The closest distance at TCA is estimated to be 340.0 meters.

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

Key information

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

TCA: 2025-04-16 07:28:53z

CDM ID: 996966560

Miss distance: 340.0 (m)

Collision probability: 0.0001252144 (~0.013%)

Last Updated: 3 weeks, 6 days ago

Objects comparison

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

DELTA 1 DEB	Name	CZ-4C R/B
12539	Norad ID	40879
DEBRIS	Type	ROCKET BODY
SSO	Orbit	SSO
101.7°	Inclination	100.52°
SMALL	Size	LARGE
US	Country	PRC
July 29, 1976	Launch date	Aug. 27, 2015
	Full details

Live tracking

Real-time ground track for DELTA 1 DEB and CZ-4C R/B.

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