NADEZHDA 1 CZ-4B DEB

0.042% collision chance on 2025-08-17 10:08:28z

CDM information

Conjunction Data Message description

NADEZHDA 1 is risking orbital collision with CZ-4B DEB. 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 0.042%. The closest distance at TCA is estimated to be 236.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object NADEZHDA 1 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: 1118753628

Miss distance: 236.0 (m)

Collision probability: 0.0004235289 (~0.042%)

Last Updated: 3 weeks, 2 days ago

Objects comparison

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

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

Live tracking

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

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