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Cyamukungu M.,Catholic University of Leuven | Benck S.,Catholic University of Leuven | Borisov S.,Catholic University of Leuven | Gregoire G.,Catholic University of Leuven | And 32 more authors.
IEEE Transactions on Nuclear Science | Year: 2014

This paper provides a detailed description of the Energetic Particle Telescope (EPT) accommodated on board the PROBA-V satellite launched on May 7th, 2013 on a LEO, 820 km altitude, 98.7 inclination and a 10:30-11:30 Local Time at Descending Node. The EPT is an ionizing particle spectrometer that was designed based on a new concept and the most advanced signal processing technologies: it performs in-flight electron and ion discrimination and classifies each detected particle in its corresponding physical channels from which the incident spectrum can be readily reconstructed. The detector measures electron fluxes in the energy range 0.5-20 MeV, proton fluxes in the energy range 9.5-300 MeV and He-ion fluxes between 38 and 1200 MeV. The EPT is a modular configurable instrument with customizable maximum energy, field of view angle, geometrical factor and angular resolution. Therefore, the features of the currently flying instrument may slightly differ from those described in past or future configurations. After a description of the instrument along with the data acquisition and analysis procedures, the first particle fluxes measured by the EPT will be shown and discussed. The web-site located at http://web.csr.ucl.ac.be/csr-web/probav/which daily displays measured fluxes and other related studies will also be briefly described. © 1963-2012 IEEE.


This N.,Belgian User Support and Operations Center | Karl A.,Space Applications Services N.V. | Pieters L.,Space Applications Services N.V. | Haumont E.,Belgian User Support and Operations Center | And 4 more authors.
Proceedings of the International Astronautical Congress, IAC | Year: 2015

The Fluid Science Laboratory (FSL) is a research facility installed in the European Columbus module of the International Space Station. It provides 70+ different optical diagnostics to insertable Experiment Containers (EC). In the first 6 years of its operational life, FSL operations were managed by the Italian Microgravity Advanced Research and Support Center (MARS) following the European User Support and Operations Centre (USOC) concept. In 2013 however it was decided that the Belgian USOC (B.USOC) would take over the operations, with the actual hand-over process starting in spring 2014. This article reports on how this hand-over was executed. It lists the events in a chronological way, and discusses the main challenges encountered by B.USOC. It was found that operational knowledge is difficult to transfer due to the different forums where the information is tracked. A changing ground segment concept complicated the hand-over, which would also have benefited from a consolidated overview of the upcoming activities. Still, B.USOC managed to overcome the difficulties and perform its first onboard FSL operations in April 2015. Copyright © 2015 by the American Institute Federation of Aeronautics and Astronautics. Inc. All rights reserved.

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