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Tag: geostationary

Thaicom contracts Airbus for a OneSat flexible telecommunications satellite

September 11, 2023 /

Toulouse, France, September 11, 2023 – Thaicom PCL (THCOM), a leading Asian satellite operator and space technology company, has selected Airbus Group SE (AIR) for its new generation software-defined high throughput satellite.

Airbus will provide one of its latest designed satellites – a fully reconfigurable OneSat. This Thaicom satellite will provide extended connectivity in Ku-band over the Asia-Pacific region for millions of users. Thaicom has launched and operated eight geostationary satellites. This is Thaicom’s first flexible satellite, allowing for more adaptability on coverage, frequency and capacity which is crucial in such a dynamic region.

Positioned in orbit at 119.5° East, this state-of-the art satellite will enable Thaicom to propose to other partner operators a share of its satellite’s payload capacity, lowering their costs and still ensuring they have separate control of their individual payload capacity and flexibility.

Airbus will design and manufacture the satellite, and also provide ground control segment components. Airbus plans to deliver the satellite in 2027.

Airbus OneSat can be fully reconfigured in orbit, capable of adjusting the coverage area, capacity and frequency “on the fly” to meet evolving mission scenarios. It builds on the heritage of Airbus’ ultra-reliable Eurostar geostationary telecommunication satellites and the company’s constellation expertise with OneWeb. Development of the OneSat programme is supported by ESA, as well as the French Space Agency (CNES), and the UK Space Agency.

 

 

 

 

 

 

 

Leading the Way for the Future of EGNOS

December 11, 2020 /

Airbus-led consortiums have recently won a series of contracts to shape the future of EGNOS, the European Geostationary Navigation Overlay Service. EGNOS enhances Galileo and GPS signals to provide augmented safety of life services.

EGNOS V3, set to replace the current version, is already being developed by a consortium of 20 European companies led by Airbus. It will enable ‘Category I’ automatic landing of aircraft – with the flight crew supervising – in weather conditions where it would otherwise be dangerous or impossible to operate. 

To prepare EGNOS V3 Evolutions, the European Space Agency (ESA) has awarded a new study contract to Airbus.  The focus is on the use of the augmentation service for stringent operations like Category II approach and landing under very low visibility conditions going beyond the current EGNOS V3 performance requirements.

Preceding this, Airbus has been conducting an innovative study under the ESA NAVISP Programme to assess the potential of sensor fusion techniques, for aviation applications demanding stringent performance requirements aiding operations under low visibility conditions. The study assesses the fit and the benefits of this approach to the Positioning Navigation & Timing (PNT) requirement adherence, in particular for the Satellite Navigation.

In addition, Airbus, together with European partners, has won a series of contracts from the European Global Navigation Satellite Systems Agency (GSA) and ESA to extend EGNOS service use for the safe operations of railways. The resulting projects are:

– CLUG (Certifiable Localisation Unit with GNSS): GNSS could prove a game changer for the European railway network by enabling a significant reduction of trackside equipment and by improving localisation performance. This project is performing mission analysis/needs identification and a preliminary feasibility study of an on-board localisation unit.

– GREET (GNSS for the Railway EnvironmEnT) ESA recently awarded Airbus a study for the development of a railway GNSS receiver chain to support the testing and validation of integrity concepts, algorithms, and techniques for receivers in railway environment.

– EGNSS-R (European GNSS for Rail): Rail signaling systems are used to safely control traffic in order to prevent train collisions.  The project aims to define a new GNSS augmentation service for improved rail signaling, along with an implementation roadmap.

Aerojet Rocketdyne RL10 Engine Marks 500th Flight with AEHF-6 Launch

March 27, 2020 /

CAPE CANAVERAL, Fla., March 26, 2020 (GLOBE NEWSWIRE) — The successful March 26 launch of the U.S. Space Force’s sixth and final Advanced Extremely High Frequency (AEHF) military communications satellite aboard a United Launch Alliance (ULA) Atlas V rocket marked the 500th flight of Aerojet Rocketdyne’s RL10 upper-stage engine.

The RL10, which powers the ULA Atlas V Centaur upper stage, is one of several Aerojet Rocketdyne propulsion products supporting the mission. Aerojet Rocketdyne propulsion can be found on both the rocket and the AEHF-6 satellite. Built by Lockheed Martin, the AEHF satellites provide secure, jam-proof communications, including nuclear command and control, to U.S. and allied forces.

“This launch marks an important milestone for Aerojet Rocketdyne and for the country,” said Eileen Drake, Aerojet Rocketdyne’s CEO and president. “The RL10 has supported a majority of the nation’s most important national security and scientific missions, including all of the AEHF satellites which provide communication links that are critical to our warfighters.”

The Atlas V in the 551 configuration is the most powerful vehicle in the Atlas V family, featuring five Aerojet Rocketdyne AJ-60A solid rocket strap-on motors, each generating 348,500 pounds of thrust. Designed specifically to provide extra lifting power to the Atlas V, the AJ-60A is the world’s largest monolithic solid rocket motor ever flown.

The AEHF-6 satellite, meanwhile, is outfitted with three different types of Aerojet Rocketdyne thrusters for attitude control, orbital station keeping and maneuvering. These include 12 MR-103G and six MR-106E monopropellant thrusters; and four, 5-kilowatt-class XR-5 Hall-effect electric thrusters and associated power processing systems.

The Atlas V also uses Aerojet Rocketdyne reaction control thrusters on the Centaur upper stage, as well as pressure vessels provided by ARDÉ, an Aerojet Rocketdyne subsidiary. The rocket launched from Cape Canaveral Air Force Station, Florida, and the AEHF-6 satellite is on its way to its operating location in geostationary orbit.

In addition to the Atlas V, the RL10 also powers the upper stage of ULA’s Delta IV Heavy rocket. The RL10 has helped place hundreds of military, civil and commercial satellites into Earth orbit and has sent spacecraft to explore every planet in our solar system. The RL10’s proven reliability over more than five decades of service has made it the upper-stage engine of choice for three new rockets under development, including ULA’s Vulcan Centaur, Northrop Grumman’s OmegA, and NASA’s Space Launch System.

About Aerojet Rocketdyne: Aerojet Rocketdyne, a subsidiary of Aerojet Rocketdyne Holdings, Inc. (AJRD), is a world-recognized aerospace and defense leader that provides propulsion systems and energetics to the space, missile defense and strategic systems, and tactical systems areas, in support of domestic and international customers.

Boeing-Built Satellite to Offer Greater Asia-Pacific Coverage

December 18, 2019 /

A Boeing [NYSE: BA]-built satellite called JCSAT-18/Kacific1 will provide affordable internet access and other communications services to underserved parts of Asia and the Pacific islands.

The satellite launched today from Cape Canaveral, Florida at about 7:10 p.m. It will enter service several weeks after on-orbit tests and moving to its final geostationary orbit position over the Asia-Pacific region.

Built on Boeing’s 702 satellite platform, JCSAT-18/Kacific1 has two separate payloads for two customers, SKY Perfect JSAT of Tokyo and Kacific Broadband Satellites Group of Singapore. The satellite will deliver internet services to a potential market comprising hundreds of millions of people in more than 25 countries, including remote islands in the Pacific and the far eastern part of Russia.

“JCSAT-18/Kacific1 is going to make a difference in the lives of millions of people throughout the Asia Pacific region,” said Chris Johnson, president, Boeing Satellite Systems International. “We are proud to support SKY Perfect JSAT and Kacific as they seek to bring positive change through connectivity in regions that have been traditionally underserved.”

JCSAT-18/Kacific1 is the 13th satellite Boeing has built for SKY Perfect JSAT and the first satellite built for Kacific.

Successful Launch of Second SpaceDataHighway Satellite

August 12, 2019 /

The EDRS-C satellite, the second node of the SpaceDataHighway network (also known as EDRS, European Data Relay System), has been successfully launched into geostationary orbit at 31° East by an Ariane 5 rocket from Kourou, French Guiana. After a test period, it will double transmission capacity of the system in order to serve two observation satellites simultaneously and provide redundant back-up for the SpaceDataHighway.

This second satellite is joining EDRS-A which transmits on a daily basis the images of Earth acquired by the Copernicus programme’s four Sentinel observation satellites. Since it entered service in late 2016, it has achieved more than 20,000 laser connections. The reliability rate has reached 99.5%, and these successful connections have downloaded more than 1 petabyte of data. Full operations including EDRS-C are expected by the end of 2019, when its inter-satellite link and end-to-end service will be tested and commissioned with the Sentinel satellites.

The SpaceDataHighway is the world’s first ‘optical fibre’ network in the sky based on cutting-edge laser technology. It is a unique network of geostationary satellites permanently fixed over a network of ground stations that can transmit data at a rate of 1.8 Gbit/s. It will be a key component of the Airbus Network for the Sky (NFTS) programme. NFTS combines various technologies – satellite and ground communications, air-to-ground, ground-to-air and air-to-air tactical links, 5G mobile communications and laser connections – in a resilient, unified, secure, highly interoperable, mesh network for aircraft, UAVs and helicopters.

SpaceDataHighway satellites can connect to low-orbiting observation satellites at a distance up to 45000 km, intelligence UAVs or mission aircraft via laser. From its position in geostationary orbit, the SpaceDataHighway system relays data collected by observation satellites to Earth in near-real-time, a process that would normally take around 90 minutes. It thus enables the quantity of image and video data transmitted by observation satellites to be tripled and their mission plan to be reprogrammed at any time and in just a few minutes.

“The SpaceDataHighway makes our data connections more secure, more stable, more reliable, with more bandwidth and in near real time.  The launch of our second satellite is just the start, laser communication will be a revolution for many industries,” said Evert Dudok, Head of Communications, Intelligence & Security at Airbus Defence and Space.

A third communication node is to be positioned over the Asia-Pacific region by around 2024. Equipped with three laser terminals, EDRS-D will significantly increase the system’s communication capacity and considerably expand its coverage.

From 2021, the Pleiades Neo Earth observation satellites will begin to use the SpaceDataHighway. By the end of 2019, the system will also provide a fully European broadband communication service to the Columbus module of the International Space Station (ISS).

The SpaceDataHighway is a public–private partnership between the European Space Agency (ESA) and Airbus, with the laser terminals developed by Tesat-Spacecom and the DLR German Space Administration. Airbus owns, operates and provides commercial services for the SpaceDataHighway. The EDRS-C satellite platform supplied by OHB System AG is also carrying a payload for Avanti Communications.

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