NOAA 17 DEB IRIDIUM 17

0.012% collision chance on 2025-08-20 17:08:09z

CDM information

Conjunction Data Message description

NOAA 17 DEB is risking orbital collision with IRIDIUM 17. The time of closest approach (TCA) between the two objects is calculated to be at Aug. 20, 2025, 5:09 p.m., with a collision probability of 0.012%. The closest distance at TCA is estimated to be 486.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object NOAA 17 DEB in its detailed page.

Key information

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

TCA: 2025-08-20 17:09:22z

CDM ID: 1121910728

Miss distance: 486.0 (m)

Collision probability: 0.0001212651 (~0.012%)

Last Updated: 2 weeks, 2 days ago

Objects comparison

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

NOAA 17 DEB	Name	IRIDIUM 17
48711	Norad ID	24870
DEBRIS	Type	PAYLOAD
SSO	Orbit	LEO
98.79°	Inclination	86.4°
SMALL	Size	LARGE
US	Country	US
June 24, 2002	Launch date	July 9, 1997
	Full details

Live tracking

Real-time ground track for NOAA 17 DEB and IRIDIUM 17.

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