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KOREASAT 6A to embark a satellite-based augmentation system (SBAS) payload built by Thales Alenia Space

KOREASAT 6A to embark a satellite-based augmentation system (SBAS) payload  built by Thales Alenia Space

Following the communications satellite contract signed in September 2022, KT SAT, the leading satellite service provider in South Korea, and Thales Alenia Space, the joint company between Thales (67%) and Leonardo (33%), are announcing today that KOREASAT 6A will also embark a satellite-based augmentation system (SBAS) payload to improve the continuity and availability of the Korea Augmentation Satellite System (KASS).

Developed since 2016 by Thales Alenia Space jointly with the Korean space agency (KARI), KASS is similar to the European Geostationary Navigation Overlay Service (EGNOS). It improves the positioning and navigation performance provided by global navigation satellite systems (GNSS) for a number of different sectors, especially aviation. It has been developed to meet international standards by International Civil Aviation Organisation (ICAO), improving the accuracy and reliability of global positioning system (GPS) signals and better ensure flight safety and efficiency, while also reducing the environmental impact of air travel.

KASS is expected to improve the GPS position error to 1.0-1.6 metre from the current 15-33 metre level in real time to ensure positioning reliability throughout the country. Also KASS has been considered as a future technology as it could be applied to various fields, mainly public safety, transportation, defence and science.

“I would like to thank KT SAT for their renewed trust in Thales Alenia Space” said Hervé Derrey, CEO of Thales Alenia Space. “The embarkation of a SBAS payload built by Thales Alenia Space onboard KOREASAT 6A for the KASS system re-enforces our space navigation positioning and illustrates the success of European satellite navigation solutions.”

David Kyunmin Song, CEO of KT SAT said “Once KASS is successfully built up, we expect it will not only improve flight safety but also offer the most optimal air route as well. We are very pleased to play a pivotal role in the development of KASS under the partnership with Thales Alenia Space in manufacturing KOREASAT 6A.”

As program prime contractor, Thales Alenia Space is responsible for the design, construction, testing and ground delivery of the satellite, followed by orbital positioning and in-orbit testing services. In addition, Thales Alenia Space will train and support the customer’s on-site engineering team and will provide operational assistance throughout the satellite’s lifetime.

“With a strong presence across multiple sectors in Korea since 1983, space remains a key industry for Thales to deepen our long-standing relationship with key partners and to continuously improve the accuracy and positioning of the solutions we offer. Our ambition is to continue developing these capabilities jointly with our partners and stakeholders in the ecosystem, in our commitment to developing our expertise in Korea,” said Sandy Gillio, Country Director, Thales in Korea.

KOREASAT 6A will replace the current KORESAT 6 satellite and will deliver both fixed satellite service (FSS) and broadcasting satellite service (BSS) to South Korea. It will be positioned in geostationary orbit at 116° East. Built on Thales Alenia Space's proven Spacebus 4000B2 platform, KOREASAT 6A will be fitted with six BSS transponders and 20 FSS transponders to cover all of South Korea. Slated for delivery in the fourth {OPEN} quarter of 2024, KOREASAT 6A will weigh about 3.5 metric tons at launch and offers a design life of 15 years.



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