SL-12 R/B(2) COSMOS 1521 (GLONASS)

Collision chance on 2025-06-08 09:06:27z

CDM information

Conjunction Data Message description

SL-12 R/B(2) is risking orbital collision with COSMOS 1521 (GLONASS). The time of closest approach (TCA) between the two objects is calculated to be at June 8, 2025, 9:27 a.m., with a collision probability TBA. The closest distance at TCA is estimated to be 2275.0 meters.

Key information

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

CDM image for a rocket body

TCA: 2025-06-08 09:27:14z

CDM ID: 1047880989

Miss distance: 2275.0 (m)

Collision probability: TBA

Objects comparison

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

SL-12 R/B(2) Name COSMOS 1521 (GLONASS)
36403 Norad ID 14592
ROCKET BODY Type PAYLOAD
MEO Orbit MEO
65.61° Inclination 66.45°
LARGE Size MEDIUM
CIS Country CIS
March 1, 2010 Launch date Dec. 29, 1983
Full details

Live tracking

Real-time ground track for SL-12 R/B(2) and COSMOS 1521 (GLONASS).


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