Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

INTELSAT IVA F1

retired

CommunicationsGEOCOSPAR 1975-091ALaunched 9/26/1975

Mission & Launch

Launch Mission: Intelsat 4A F-1
Launch Vehicle: Atlas SLV-3D Centaur
Launch Date: 9/26/1975
Last Contact: 7/24/1986

Orbit & Mass

Orbit Class: GEO
Altitude: 35,786.5 km
Inclination: 0.05 deg
Dry Mass: 610 kg
Total Mass: 1,479 kg

Payload Classification

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

Organizations

Operator: Intelsat
Manufacturer: Hughes Space and Comms. Co (Hughes Satellite Systems)

Constellation

Name: Intelsat legacy GEO fleet
Active Satellites: 4

Registry

COSPAR ID: 1975-091A
UN Registration: A/AC.105/INF.332