M-4S R/B SL-16 DEB

0.012% collision chance on 2024-07-06 15:07:31z

CDM information

Conjunction Data Message description

M-4S R/B is risking orbital collision with SL-16 DEB. The time of closest approach (TCA) between the two objects is calculated to be at July 6, 2024, 3:31 p.m., with a collision probability of 0.012%. The closest distance at TCA is estimated to be 418.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2024-07-06 15:31:50z

CDM ID: 761284501

Miss distance: 418.0 (m)

Collision probability: 0.0001214614 (~0.012%)

Objects comparison

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

M-4S R/B Name SL-16 DEB
5126 Norad ID 39881
ROCKET BODY Type DEBRIS
LEO Orbit LEO
29.68° Inclination 70.99°
MEDIUM Size SMALL
JPN Country CIS
Feb. 16, 1971 Launch date March 26, 1993
Full details

Live tracking

Real-time ground track for M-4S R/B and SL-16 DEB.


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