UME 1 (ISS 1) SL-8 R/B

3.154% collision chance on 2024-10-15 20:10:41z

CDM information

Conjunction Data Message description

UME 1 (ISS 1) is risking orbital collision with SL-8 R/B. The time of closest approach (TCA) between the two objects is calculated to be at Oct. 15, 2024, 8:41 p.m., with a collision probability of 3.154%. The closest distance at TCA is estimated to be 44.0 meters.

Key information

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

CDM image for a payload

TCA: 2024-10-15 20:41:34z

CDM ID: 840189694

Miss distance: 44.0 (m)

Collision probability: 0.03154081 (~3.154%)

Objects comparison

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

UME 1 (ISS 1) Name SL-8 R/B
8709 Norad ID 21938
PAYLOAD Type ROCKET BODY
LEO Orbit LEO
69.67° Inclination 82.93°
LARGE Size LARGE
JPN Country CIS
Feb. 29, 1976 Launch date April 15, 1992
Full details

Live tracking

Real-time ground track for UME 1 (ISS 1) and SL-8 R/B.


Newsletter sign-up

Weekly statistics, charts and insights to help you stay on top of the space industry.