COSMOS 252 DEB * TIROS 9

0.262% collision chance on 2025-09-02 02:09:02z

CDM information

Conjunction Data Message description

COSMOS 252 DEB * is risking orbital collision with TIROS 9. The time of closest approach (TCA) between the two objects is calculated to be at Sept. 2, 2025, 2:02 a.m., with a collision probability of 0.262%. The closest distance at TCA is estimated to be 87.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object COSMOS 252 DEB * in its detailed page.

Key information

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

TCA: 2025-09-02 02:02:57z

CDM ID: 1138566638

Miss distance: 87.0 (m)

Collision probability: 0.002620939 (~0.262%)

Last Updated: 3 days, 12 hours ago

Objects comparison

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

COSMOS 252 DEB *	Name	TIROS 9
3938	Norad ID	978
DEBRIS	Type	PAYLOAD
MEO	Orbit	MEO
63.03°	Inclination	96.4°
SMALL	Size	MEDIUM
CIS	Country	US
Nov. 1, 1968	Launch date	Jan. 22, 1965
	Full details

Live tracking

Real-time ground track for COSMOS 252 DEB * and TIROS 9.

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