The solar wind proton and alpha sensor for the solar orbiter

David J. McComas, Mihir I. Desai, Frédéric Allegrini, Matthew Berthomier, Roberto Bruno, Phillip Louarn, Eckart Marsch, Christopher J. Owen, Nathan A. Schwadron, Thomas H. Zurbuchen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The primary scientific objective of the Solar WindProton and Alpha Sensor (SW-PAS) for the Solar Orbiter (SO) mission is to provide observations of kinetic and fluid properties of the bulk solar wind plasma that will ultimately lead to new discoveries and improved understanding of coronal heating, the origin and acceleration of the solar wind, and the seed population of solar proton events. Specifically, the SW-PAS will measure the 3-D velocity distribution functions of solar wind and suprathermal protons and α-particles between 200 eV/q-20 keV/q energy range at high temporal resolution. In this paper, we outline the main scientific goals, instrument concept, and critical issues required for the design and development of the SW-PAS sensor.

Original languageEnglish (US)
Title of host publicationProceedings of the Second Solar Orbiter Workshop
StatePublished - Oct 2006
Externally publishedYes
Event2nd Solar Orbiter Workshop - Athens, Greece
Duration: Oct 16 2006Oct 20 2006

Publication series

NameEuropean Space Agency, (Special Publication) ESA SP
ISSN (Print)0379-6566


Conference2nd Solar Orbiter Workshop

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science


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