The GIOVE-A satellite is in good health and started transmitting the first Galileo signals from medium Earth orbit on 12 January.
GIOVE-A was placed in orbit (altitude 23,260 km) by a Soyuz-Fregat rocket operated by Starsem on 28 December last from the Baikonur cosmodrome. The prime contractor, Surrey Satellite Technology Limited, then successfully deployed the 7-metre solar array panels, commissioned the satellite platform and prepared the payload for tests from its Mission Control Centre. These activities on GIOVE-A drew on the joint efforts of ground stations deployed at RAL (UK), Bangalore (India) and Kuala Lumpur (Malaysia) for uploading of the onboard computer software, deployment of the two solar panels and placing of the satellite in sun-acquisition mode.
All the platform systems underwent functional checks and the satellite was then put in its nominal Earth-pointing attitude and orbit control mode. This platform commissioning phase was successfully completed by 9 January.
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21.07.2017 | American Institute of Physics
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21.07.2017 | National Institutes of Natural Sciences
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
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