Ralph L McNutt Jr¹, Matthew Hill², Peter Kollmann³, David J McComas⁴, Heather Alison Elliott⁵, Pawel Swaczyna⁶, Bishwas Shrestha⁷, Romina Nikoukar⁸, Parisa Mostafavi², Fran Bagenal⁹, John D Richardson¹⁰, Stamatios Mike Krimigis¹¹, Edmond C Roelof¹², Andrew R Poppe¹³, Elena Provornikova², Alan Stern¹⁴, Kelsi N Singer¹⁵, Pontus C. Brandt¹⁶, Joel Wm Parker¹⁷, Anne Verbiscer¹⁸, Carey Michael Lisse¹⁹, Steve E. Jaskulek² and New Horizons Heliophysics Science Theme Team, (1)Johns Hopkins University Applied Physics Laboratory, Space Exploration Sector, Laurel, MD, United States, (2)Applied Physics Laboratory Johns Hopkins, Laurel, United States, (3)The Applied Physics Laboratory, John Hopkins University, Laurel, United States, (4)Princeton University, Department of Astrophysical Sciences, Princeton, United States, (5)Southwest Research Institute, San Antonio, TX, United States, (6)Space Research Centre PAS (CBK PAN), Warsaw, Poland, (7)Princeton University, Astrophysical Sciences, Princeton, United States, (8)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States, (9)University of Colorado Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, (10)MIT, Cambridge, MA, United States, (11)Academy of Athens, Space, Athens, Greece, (12)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (13)Space Sciences Laboratory, University of California at Berkeley, Berkeley, United States, (14)Southwest Research Institute San Antonio, San Antonio, United States, (15)Southwest Research Institute, Boulder, CO, United States, (16)Johns Hopkins Univ/APL, Laurel, United States, (17)Southwest Research Institute Boulder, Boulder, United States, (18)University of Virginia Main Campus, Charlottesville, United States, (19)JHU-APL, Laurel, United States