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HellasSat 4/SaudiGeoSat 1

HellasSat 4/SaudiGeoSat 1 (A2100 upgraded) [Lockheed Martin]

HellasSat 4/SaudiGeoSat 1 is a Greek geostationary communications satellite for Hellas Sat, which is owned by Arabsat.

Arabsat and King Abdulaziz City for Science and Technology (KACST) announced in April 2015 contracts for Lockheed Martin to manufacture two A2100 communications satellites - Arabsat 6A and HellasSat 4/SaudiGeoSat 1. The contracts were signed April 9, 2015. Construction of the satellites commenced immediately and was completed for a launch in 2018.

The satellite was built on Lockheed Martin's LM2100 bus, a modernized version of A2100 bus, which builds on that flight-proven design with advanced innovations including propulsion, solar arrays and electronics.

The Saudi Geostationary Satellite 1 communications payload provides advanced Ka-band spot beam communications services for KACST, a government organization responsible for promoting science and technology in Saudi Arabia. The Hellas Sat 4 communications payload delivers advanced Ku-band regional beam communications services for the Arabsat subsidiary.

Hellas-Sat-4/SaudiGeoSat-1 operates from a location at 39 East. The satellite is designed for a 15-year service life, and was manufactured in Denver, Colorado.

Nation: Greece, Saudi Arabia
Type / Application: Communication
Operator: Hellas Sat, ArabSat
Contractors: Lockheed Martin
Equipment: Ku and Ka-band transponders
Configuration: LM-2100
Propulsion: Hybrid Electric/Chemical
Power: 2 deployable solar arrays, batteries
Lifetime: 15 years
Mass: 6495 kg; 3950 kg (dry)
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
HellasSat 4/SaudiGeoSat 1 2019-007A 05.02.2019 Ko ELA-3 Ariane-5ECA with GSat 31
Further HellasSat missions: