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OSC → Orbital ATK → Northrop Grumman Innovation Systems (NGIS): Star-3 → GeoStar-3

Al Yah 3 [Orbital]

The GEOStar-3 satellite platform represents an evolutionary growth of Orbital's GEOStar-2 platform, providing an incremental expansion of the flight-proven GEOStar-2 product line.

EPS enhancements include an increase in battery capacity and in solar array power, enabling GEOStar-3 to provide up to 8,000 watts of power to the payload at end-of-life. The larger solar arrays and additional battery capacity retain the 100 percent successful flight heritage 36 volt regulated power bus. The GEOStar-3 Bus structure’s mass carrying capability and propellant tank accommodation enable optimal use of launch vehicle performance, and can include tandem launch missions that use heritage bi-propellant apogee engines to ensure fast and reliable orbit raising. For heavier missions, a flight proven Electric Propulsion system will replace the heritage ImpEHTs for stationkeeping operations

he GEOStar-3 Bus can accommodate payloads of up to 800 kilograms and 8,000 watts. As many as 72 radiatively cooled TWTAs, or a greater combination of radiatively and conductively cooled TWTAs can easily be accommodated on the platform. The total payload conductive thermal dissipation is scalable up to 4,800 watts. The platform can accommodate a broad range of depoyable reflectors and nadir antenna configurations, enabling compelling payload solutions. The expanded payload envelope of GEOStar-3 also allows customers to consider a larger universe of hosted payload opportunities.

Satellite Ordered Date Launcher Weight (kg) Remarks
Launch BOL
Al Yah 3 2014 25.01.2018 Ariane-5ECA 3795
ASBM 1 (GX 10A, EPS-R 1) 2019 2024 Falcon-9 v1.2 (Block 5) 2000
ASBM 2 (GX 10B, EPS-R 2) 2019 2024 Falcon-9 v1.2 (Block 5) 2000
Galaxy 33 (Galaxy 15R) 2020 08.10.2022 Falcon-9 v1.2 (Block 5) 3654
Galaxy 34 (Galaxy 12R) 2020 08.10.2022 Falcon-9 v1.2 (Block 5) 3695
GovSat 1 (SES 16) 2015 31.01.2018 Falcon-9 v1.2 4230
HYLAS 4 2014 05.04.2018 Ariane-5ECA 4050
MEV 1 09.10.2019 Proton-M Briz-M (Ph.4) 2326
MEV 2 15.08.2020 Ariane-5ECA+ 2875
MRV 1 (RSGS) 2020 2024 Falcon-9 v1.2 (Block 5) 3000
SES 18 2020 17.03.2023 Falcon-9 v1.2 (Block 5)
SES 19 2020 17.03.2023 Falcon-9 v1.2 (Block 5)


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