CZ-4B DEB NADEZHDA 1

0.040% collision chance on 2025-08-17 10:08:28z

CDM information

Conjunction Data Message description

CZ-4B DEB is risking orbital collision with NADEZHDA 1. The time of closest approach (TCA) between the two objects is calculated to be at Aug. 17, 2025, 10:28 a.m., with a collision probability of 0.040%. The closest distance at TCA is estimated to be 238.0 meters.

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

Key information

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

TCA: 2025-08-17 10:28:49z

CDM ID: 1118758973

Miss distance: 238.0 (m)

Collision probability: 0.0003955461 (~0.040%)

Last Updated: 3 weeks, 3 days ago

Objects comparison

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

CZ-4B DEB	Name	NADEZHDA 1
29216	Norad ID	20103
DEBRIS	Type	PAYLOAD
SSO	Orbit	LEO
98.81°	Inclination	82.96°
SMALL	Size	LARGE
PRC	Country	CIS
May 15, 2002	Launch date	July 4, 1989
	Full details

Live tracking

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

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