Enrico Stoll Technische Universität Braunschweig Institute of Space Systems Hermann-Blenk-Straße 23 38108 Braunschweig, Germany e-mail: e.stoll@tu-braunschweig.de Enrico Stoll is Professor and Head of the Institute of Space Systems at Technische Universität Braunschweig. Prof. Stoll received his doctoral degree in Aerospace Engineering at Technische Universität München in 2008. He was a Postdoctoral Fellow at Massachusetts Institute of Technology’s Space Laboratory in 2009. From 2010 till 2014 he held a position as system engineer at RapidEye AG (now Planet Labs). Meanwhile he also served as guest researcher and lecturer at the Free University of Berlin.