Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

XM-4

retired

CommunicationsGEOCOSPAR 2006-049ALaunched 10/30/2006

Mission & Launch

Launch Mission: SL22 XM Radio-4
Launch Vehicle: Zenit-3SL
Launch Date: 10/30/2006
Last Contact: 10/18/2023

Orbit & Mass

Orbit Class: GEO
Altitude: 35,786 km
Inclination: 0.04 deg
Dry Mass: 2,700 kg
Total Mass: 5,193 kg

Payload Classification

Mission Type: Communications
Payload Category: COM
Payload Class: B

Organizations

Operator: SiriusXM
Manufacturer: Boeing

Registry

COSPAR ID: 2006-049A
UN Registration: ST/SG/SER.E/506