R. , R. , R. , R. , I. et al., RPC is operated by Imperial College London in cooperation with SwRI, The lead funding agencies are The work at LPC2E/CNRS was supported by ESEP, CNES and by ANR under the financial agreement ANR-15-CE31-0009-01. The work on RPC-MAG was financially supported by the German Ministerium fur Wirtschaft und Energie and the Deutsches Zentrum fur Luft-und Raumfahrt under contract 50QP 1401. Work at Imperial College London is supported by STFC of UK under grants ST/K001051/1 and ST/N000692/1. The work of ZN was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences . Portions of this research were carried out at the Jet Propulsion Laboratory, California Institute of Technology under contract with NASA. We acknowledge the staff of CDDP and Imperial College London for the use of AMDA and the RPC Quicklook data base (provided by a collaboration between the Centre de Données de la Physique des Plasmas, The Rosetta Plasma Consortium (RPC) instrument package consists of five sensors The Rosetta data will be made available through ESA's Planetary Science Archive (PSA) Web site

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