In-Orbit Trend Analysis of Galileo Satellites for Power Sources Degradation EstimationFrederic Bard, Aurore Carré, Pablo Fernandez, Maria Nestoridi, Sergio Alia, Aakesh Datta and Olabisi DurodolaE3S Web Conf., 16 (2017) 13005DOI: https://doi.org/10.1051/e3sconf/20171613005