Arabsat-6A is a geostationary communications satellite operated by Arabsat.[4] The satellite was built by Lockheed Martin Space Systems on a modernized A2100 bus.[5] The satellite was successfully launched from Kennedy Space Center LC-39A aboard Falcon Heavy on April 11, 2019.[6][7]

Arabsat-6A

Launch of Arabsat-6A on Falcon Heavy
Mission type	Communications satellite
Operator	King Abdulaziz City for Science and Technology
COSPAR ID	2019-021A
SATCAT no.	44186
Mission duration	3 years, 5 months and 24 days (elapsed)
Spacecraft properties
Spacecraft type	Telecomm
Bus	A2100
Manufacturer	Lockheed Martin
Launch mass	6,465 kg [1]
Start of mission
Launch date	April 11, 2019, 22:35 UTC
Rocket	Falcon Heavy
Launch site	Kennedy LC-39A
Contractor	SpaceX
Orbital parameters
Reference system	Geocentric[1]
Regime	Geostationary
Longitude	30.5° E[2]
Arabsat-6G program Hellas Sat 4/SaudiGeoSat-1 [3] →

History

Arabsat-6A and SaudiGeoSat-1/HellasSat-4 are the two satellites of the Arabsat-6G program, ordered by the Arab League to supply the communications needs of member states.[8]

Contracts to build the two satellites were awarded to Lockheed Martin Space Systems in April 2015. Arabsat ultimately awarded the launch contract for Arabsat-6A to SpaceX for a Falcon Heavy flight with no expendable boosters.[9] The Falcon Heavy was chosen over the Falcon 9 due to its far superior thrust; the extra boost would extend the satellite's operational lifespan from 15 years to 18-20 years.[10]

Spacecraft

Arabsat 6A is based on an updated version of the A2100 bus and is considered among the most advanced communications satellites built.[11] The spacecraft utilizes fixed and steerable Ku-band and Ka-band transponders to provide TV and radio services to the Middle East and North Africa from its station at 30.5°E.[12]

Launch

Arabsat-6A was launched aboard the first operational Falcon Heavy on 11 April 2019 at 22:35 UTC from Kennedy Space Center LC-39A.[6] Following a successful launch, the twin side boosters separated from the center core and returned to land at Landing Zones 1 and 2, while the center core completed its mission and landed on Of Course I Still Love You. Approximately 34 minutes after launch, the Arabsat-6A was released from the second stage and began a 17-day process to reach its operational orbit.[12]

On June 15th the 4 tonne second stage re-entered the Earth's atmosphere, its orbit having gradually decayed due to atmospheric drag, with an uncontrolled splash down in the Coral Sea east of Australia[13]

References

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[de] Arabsat 6A

[ru] Arabsat 6A