SL-3 R/B COSMOS 1275 DEB

0.013% collision chance on 2025-11-29 03:11:55z

CDM information

Conjunction Data Message description

SL-3 R/B is risking orbital collision with COSMOS 1275 DEB. The time of closest approach (TCA) between the two objects is calculated to be at Nov. 29, 2025, 3:55 a.m., with a collision probability of 0.013%. The closest distance at TCA is estimated to be 313.0 meters.

Note: this is the latest available calculation for this conjunction event. Access all the most updated CDMs for object SL-3 R/B in its detailed page.

Key information

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

TCA: 2025-11-29 03:55:11z

CDM ID: 1244784682

Miss distance: 313.0 (m)

Collision probability: 0.0001341443 (~0.013%)

Last Updated: 2 weeks, 1 day ago

Objects comparison

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

SL-3 R/B	Name	COSMOS 1275 DEB
6393	Norad ID	42166
ROCKET BODY	Type	DEBRIS
LEO	Orbit	LEO
81.26°	Inclination	82.88°
LARGE	Size	SMALL
CIS	Country	CIS
March 20, 1973	Launch date	June 4, 1981
	Full details

Live tracking

Real-time ground track for SL-3 R/B and COSMOS 1275 DEB.

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