SL-16 R/B IRIDIUM 33 DEB

0.017% collision chance on 2025-06-15 01:06:27z

CDM information

Conjunction Data Message description

SL-16 R/B is risking orbital collision with IRIDIUM 33 DEB. The time of closest approach (TCA) between the two objects is calculated to be at June 15, 2025, 1:27 a.m., with a collision probability of 0.017%. The closest distance at TCA is estimated to be 138.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2025-06-15 01:27:51z

CDM ID: 1054285098

Miss distance: 138.0 (m)

Collision probability: 0.0001709265 (~0.017%)

Objects comparison

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

SL-16 R/B Name IRIDIUM 33 DEB
23343 Norad ID 35616
ROCKET BODY Type DEBRIS
SSO Orbit LEO
97.74° Inclination 86.35°
LARGE Size SMALL
CIS Country US
Nov. 4, 1994 Launch date Sept. 14, 1997
Full details

Live tracking

Real-time ground track for SL-16 R/B and IRIDIUM 33 DEB.


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