DELTA 1 DEB ESSA 9 (TOS-G)

0.051% collision chance on 2025-09-20 17:09:50z

CDM information

Conjunction Data Message description

DELTA 1 DEB is risking orbital collision with ESSA 9 (TOS-G). The time of closest approach (TCA) between the two objects is calculated to be at Sept. 20, 2025, 5:50 p.m., with a collision probability of 0.051%. The closest distance at TCA is estimated to be 138.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object DELTA 1 DEB in its detailed page.

Key information

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

TCA: 2025-09-20 17:50:16z

CDM ID: 1159518908

Miss distance: 138.0 (m)

Collision probability: 0.0005056376 (~0.051%)

Last Updated: 1 month, 2 weeks ago

Objects comparison

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

DELTA 1 DEB	Name	ESSA 9 (TOS-G)
7146	Norad ID	3764
DEBRIS	Type	PAYLOAD
SSO	Orbit	SSO
101.75°	Inclination	101.4°
MEDIUM	Size	MEDIUM
US	Country	US
Nov. 6, 1973	Launch date	Feb. 26, 1969
	Full details

Live tracking

Real-time ground track for DELTA 1 DEB and ESSA 9 (TOS-G).

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