DELTA 1 R/B IRIDIUM 33 DEB

0.024% collision chance on 2025-11-15 04:11:11z

CDM information

Conjunction Data Message description

DELTA 1 R/B is risking orbital collision with IRIDIUM 33 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 15, 2025, 4:11 a.m., with a collision probability of 0.024%. The closest distance at TCA is estimated to be 94.0 meters.

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

Key information

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

TCA: 2025-11-15 04:11:09z

CDM ID: 1229553134

Miss distance: 94.0 (m)

Collision probability: 0.0002436627 (~0.024%)

Last Updated: 1 month ago

Objects comparison

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

DELTA 1 R/B	Name	IRIDIUM 33 DEB
1983	Norad ID	35806
ROCKET BODY	Type	DEBRIS
SSO	Orbit	LEO
98.03°	Inclination	86.34°
MEDIUM	Size	SMALL
US	Country	US
Feb. 3, 1966	Launch date	Sept. 14, 1997
	Full details

Live tracking

Real-time ground track for DELTA 1 R/B and IRIDIUM 33 DEB.

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