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Data Exploitation of New Galileo Environmental Monitoring Units

Sandberg, I., Aminalragia-Giamini, S., Provatas, G., Hands, A., Ryden, K., Heynderickx, D., Tsigkanos, A., Papadimitriou, T., Nagatsuma, T., Evans, H. and Rodgers, D. (2019) Data Exploitation of New Galileo Environmental Monitoring Units IEEE Transactions on Nuclear Science.

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The radiation environment of the Galileo spacecraft is severe and poorly characterized. The Galileo orbit takes the spacecraft through the heart of the outer radiation belt, while the low levels of geomagnetic shielding throughout the orbit expose the spacecraft to intermittent intense fluxes of protons during Solar Energetic Particle Events. In the Galileo constellation, two Environmental Monitoring Units (EMU) are currently flying in two different orbital planes. These units monitor the radiation environment and provide critical information related to hazards for the host spacecraft and its payload. In this work, we present results from the analysis of the surface charge collecting plates and of the proton telescope sensors. The performed numerical calibration of the EMU sensors and the application of novel unfolding and in-flight cross-calibration techniques allow the calculation of high quality proton and electron differential fluxes. The creation of a high-quality, long-term EMU electron flux dataset, is a step forward towards the improved characterization of MEO environment through the update of existing or the development of new radiation environment models.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Sandberg, I.
Aminalragia-Giamini, S.
Provatas, G.
Heynderickx, D.
Tsigkanos, A.
Papadimitriou, T.
Nagatsuma, T.
Evans, H.
Rodgers, D.
Date : 8 May 2019
Funders : European Space Agency, European Space Research and Technology Centre
DOI : 10.1109/TNS.2019.2915686
Copyright Disclaimer : © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords : Inverse problems; Electrons; Protons; Radiation monitoring; Semiconductor radiation detectors; Solar system; Space charge; Sun; Space vehicles; Protons; Instruments; Sensors; Orbits; Extraterrestrial measurements; Atmospheric measurements
Depositing User : Clive Harris
Date Deposited : 16 May 2019 13:22
Last Modified : 20 May 2019 15:00

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