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MarketScreener Homepage  >  Equities  >  Euronext Paris  >  Airbus SE    AIR   NL0000235190


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Airbus : built Solar Orbiter heads for the Sun in Florida

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10/18/2019 | 08:10am EST

Spacecraft completed all tests and ready for fiery mission

@esa @esascience @esasolarorbiter #SolarOrbiter #WeAreAllSolarOrbiters @AirbusSpace

Munich, 18 October 2019 - Solar Orbiter, the European Space Agency's (ESA) flagship mission to study the Sun has completed all tests and is set to be flown to Cape Canaveral ready for its launch in February 2020.

Built by Airbus in Stevenage, Solar Orbiter will study the Sun in detail and its effects on the solar system. The spacecraft carries a suite of complementary instruments that will measure the particles, fields and waves of the plasma through which it travels, and at the same time make observations of the Sun's surface and outer atmosphere, the photosphere and corona.

Solar Orbiter has been undergoing testing at the IABG test centre near Munich since October 2018. These included electromagnetic compatibility, vibration and thermal vacuum, as well as deployment of solar arrays and booms from the spacecraft. All tests have been successfully completed.

'Solar Orbiter has been one of the most challenging and exciting missions we have ever designed and built here at Stevenage. Sending it so close to the Sun means that some parts of the spacecraft have to withstand temperatures of more than 500°C with others in permanent shadow down to a nippy -180°C. To ensure the very sensitive instruments can measure the Sun's fields and particles, the spacecraft itself must be totally invisible to its sensors, which has pushed us to the absolute limits of what is technically achievable,' said Eckard Settelmeyer, Airbus' Head of Earth Observation, Navigation and Science Institutional Satellite Projects.

At its closest point Solar Orbiter will be closer to the Sun than the planet Mercury, at a distance of 0.28 Astronomical Units (42 million kilometres), in an orbit that takes it out of the ecliptic plane. From here, it can perform long-duration observations of the same region of the Sun's surface, and have visibility of the Sun's polar regions. It will be one of the closest approaches of the Sun by any spacecraft, where sunlight is thirteen times more intense than it is for satellites orbiting the Earth.

Solar Orbiter must survive intense thermal radiation and protect its instrument suite, while at the same time allowing those instruments to observe the Sun. The heat shield and new high-temperature solar array technology are key to its operational success. To position itself and raise its orbit above the poles, Solar Orbiter will make a complex series of gravitational-assist fly-bys past both Earth and Venus.

The Sun releases bursts of high-energy particles (Coronal Mass Ejections), which can disrupt electrical power distribution systems, cause computers to crash, damage satellites and endanger astronauts. Solar Orbiter will observe the Sun from an elliptic orbit around it, and provide scientific data to better understand the mechanisms on the Sun that cause these violent and disruptive outbursts.

Solar Orbiter builds on hugely successful Airbus-built missions such as SOHO and Ulysses that have provided remarkable insights into the workings of our Sun. Like those missions, it is a collaboration between ESA and NASA.

The mission lifetime will be nearly eight years.

* * *

About Solar Orbiter

Solar Orbiter is an international collaborative space mission between ESA and NASA to study the Sun, its outer atmosphere, and what drives the dynamic outflow of solar wind that affects Earth. The spacecraft will observe the Sun's atmosphere up close with high spatial resolution telescopes and compare these observations with measurements taken in the environment directly surrounding the spacecraft - together creating a detailed picture of how the Sun affects the space environment around Earth and further out in the solar system. Thanks to its unique - and difficult to achieve - orbit, Solar Orbiter will also provide the first-ever pictures of the Sun's polar regions, offering key insights into the poorly-understood magnetic environment there, which helps drive the Sun's 11-year solar cycle and its periodic outpouring of solar storms. Solar Orbiter relies on a combination of 10 instruments, built throughout Europe and in the U.S., carefully chosen and designed so as to support and amplify each other's observations, together providing the single most comprehensive and integrated view of the Sun and its environment ever achieved.

Note to editors:

Airbus France in Toulouse contributed key elements of software, navigation and propellant management. Airbus in Germany provided the solar arrays (Ottobrunn), and key propulsion elements (Lampoldshausen). Airbus in Spain provided control and electrical units and Airbus in the Netherlands provided radiator elements.

About Airbus

Airbus is a global leader in aeronautics, space and related services. In 2018 it generated revenues of € 64 billion and employed a workforce of around 134,000. Airbus offers the most comprehensive range of passenger airliners. Airbus is also a European leader providing tanker, combat, transport and mission aircraft, as well as one of the world's leading space companies. In helicopters, Airbus provides the most efficient civil and military rotorcraft solutions worldwide.


Airbus SE published this content on 18 October 2019 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 18 October 2019 12:09:04 UTC

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