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Skynet 4A

retired

CommunicationsGEOCOSPAR 1990-001ALaunched 1/1/1990

Mission & Launch

Launch Mission: Skynet/JCSAT
Launch Vehicle: Commercial Titan 3
Launch Date: 1/1/1990
Last Contact: 6/29/2005

Orbit & Mass

Orbit Class: GEO
Altitude: 35,618 km
Inclination: 3.37 deg
Dry Mass: 615 kg
Total Mass: 1,430 kg

Payload Classification

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

Organizations

Operator: U.K. Ministry of Defence
Manufacturer: BAE Systems

Constellation

Name: Skynet military communications
Active Satellites: 6

Registry

COSPAR ID: 1990-001A
UN Registration: ST/SG/SER.E/219