START 1 COSMOS 2251 DEB

0.015% collision chance on 2024-11-28 21:11:01z

CDM information

Conjunction Data Message description

START 1 is risking orbital collision with COSMOS 2251 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 28, 2024, 9:01 p.m., with a collision probability of 0.015%. The closest distance at TCA is estimated to be 650.0 meters.

Key information

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

CDM image for a payload

TCA: 2024-11-28 21:01:30z

CDM ID: 877035995

Miss distance: 650.0 (m)

Collision probability: 0.0001513634 (~0.015%)

Objects comparison

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

START 1 Name COSMOS 2251 DEB
22561 Norad ID 38481
PAYLOAD Type DEBRIS
LEO Orbit LEO
75.76° Inclination 73.94°
LARGE Size SMALL
CIS Country CIS
March 25, 1993 Launch date June 16, 1993
Full details

Live tracking

Real-time ground track for START 1 and COSMOS 2251 DEB.


Newsletter sign-up

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