Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

Inmarsat 5F4

active

CommunicationsGEOCOSPAR 2017-025ALaunched 5/15/2017

Mission & Launch

Launch Mission: Inmarsat 5F4 Mission
Launch Vehicle: Falcon 9 FT3
Launch Date: 5/15/2017

Orbit & Mass

Orbit Class: GEO
Altitude: 35,251 km
Inclination: 24.52 deg
Dry Mass: 3,700 kg
Total Mass: 6,070 kg

Payload Classification

Mission Type

Communications

Payload Category

COM

Payload Class

B

Organizations

Operator: International Maritime Organisation
Manufacturer: Boeing

Constellation

Name: Inmarsat GEO fleet
Active Satellites: 7

Registry

COSPAR ID: 2017-025A
UN Registration: ST/SG/SER.E/821