NADEZHDA 1 COSMOS 252 DEB *

0.015% collision chance on 2025-04-27 01:04:16z

CDM information

Conjunction Data Message description

NADEZHDA 1 is risking orbital collision with COSMOS 252 DEB *. The time of closest approach (TCA) between the two objects is calculated to be at April 27, 2025, 1:16 a.m., with a collision probability of 0.015%. The closest distance at TCA is estimated to be 261.0 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: 2025-04-27 01:16:14z

CDM ID: 1005882451

Miss distance: 261.0 (m)

Collision probability: 0.0001510934 (~0.015%)

Last Updated: 2 weeks, 2 days ago

Objects comparison

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

NADEZHDA 1	Name	COSMOS 252 DEB *
20103	Norad ID	3686
PAYLOAD	Type	DEBRIS
LEO	Orbit	LEO
82.96°	Inclination	62.26°
LARGE	Size	SMALL
CIS	Country	CIS
July 4, 1989	Launch date	Nov. 1, 1968
	Full details

Live tracking

Real-time ground track for NADEZHDA 1 and COSMOS 252 DEB *.

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