Rosetta Orbiter Spectrometer for Ion and Neutral Analysis—ROSINA

Abstract : The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) will answer outstanding questions concerning the main objectives of the mission. To accomplish the very demanding objectives, ROSINA will have unprecedented capabilities, including: very wide mass range from 1 amu to >300 amu; very high mass resolution (ability to resolve CO from N2 and ¹³C from ¹²CH); very wide dynamic range and high sensitivity; the ability to determine cometary gas and ion flow velocities and temperatures.