COSMOS 1538 ARIANE 1 DEB

0.419% collision chance on 2025-04-11 20:04:07z

CDM information

Conjunction Data Message description

COSMOS 1538 is risking orbital collision with ARIANE 1 DEB. The time of closest approach (TCA) between the two objects is calculated to be at April 11, 2025, 8:07 p.m., with a collision probability of 0.419%. The closest distance at TCA is estimated to be 78.0 meters.

Key information

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

CDM image for a payload

TCA: 2025-04-11 20:07:46z

CDM ID: 992910503

Miss distance: 78.0 (m)

Collision probability: 0.00418575 (~0.419%)

Objects comparison

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

COSMOS 1538 Name ARIANE 1 DEB
14759 Norad ID 35408
PAYLOAD Type DEBRIS
LEO Orbit SSO
74.04° Inclination 98.38°
LARGE Size SMALL
CIS Country FR
Feb. 21, 1984 Launch date Feb. 22, 1986
Full details

Live tracking

Real-time ground track for COSMOS 1538 and ARIANE 1 DEB.


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