Journal article
Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus
Space science reviews, Vol.204(1), pp.131-186
12/2016
DOI: 10.1007/s11214-015-0206-3
Abstract
The Solar Wind Electrons Alphas and Protons (SWEAP) Investigation on Solar Probe Plus is a four sensor instrument suite that provides complete measurements of the electrons and ionized helium and hydrogen that constitute the bulk of solar wind and coronal plasma. SWEAP consists of the Solar Probe Cup (SPC) and the Solar Probe Analyzers (SPAN). SPC is a Faraday Cup that looks directly at the Sun and measures ion and electron fluxes and flow angles as a function of energy. SPAN consists of an ion and electron electrostatic analyzer (ESA) on the ram side of SPP (SPAN-A) and an electron ESA on the anti-ram side (SPAN-B). The SPAN-A ion ESA has a time of flight section that enables it to sort particles by their mass/charge ratio, permitting differentiation of ion species. SPAN-A and -B are rotated relative to one another so their broad fields of view combine like the seams on a baseball to view the entire sky except for the region obscured by the heat shield and covered by SPC. Observations by SPC and SPAN produce the combined field of view and measurement capabilities required to fulfill the science objectives of SWEAP and Solar Probe Plus. SWEAP measurements, in concert with magnetic and electric fields, energetic particles, and white light contextual imaging will enable discovery and understanding of solar wind acceleration and formation, coronal and solar wind heating, and particle acceleration in the inner heliosphere of the solar system. SPC and SPAN are managed by the SWEAP Electronics Module (SWEM), which distributes power, formats onboard data products, and serves as a single electrical interface to the spacecraft. SWEAP data products include ion and electron velocity distribution functions with high energy and angular resolution. Full resolution data are stored within the SWEM, enabling high resolution observations of structures such as shocks, reconnection events, and other transient structures to be selected for download after the fact. This paper describes the implementation of the SWEAP Investigation, the driving requirements for the suite, expected performance of the instruments, and planned data products, as of mission preliminary design review.
Details
- Title: Subtitle
- Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus
- Creators
- Jasper Halekas - University of IowaJustin Kasper - Harvard UniversityDorothy Gordon - University of California, BerkeleyRobert Abiad - University of California, BerkeleyGreg Johnson - University of California, BerkeleyMiles Robinson - University of California, BerkeleyEllen Taylor - University of California, BerkeleyS Wu - University of Alabama in HuntsvilleGerry Austin - Harvard UniversityMarianne Balat-Pichelin - Laboratoire Procédeés, Matériaux et Energie Solaire PROMES-CNRS 7 rue du Four Solaire 66120 Font-Romeu Odeillo FranceStuart Bale - University of California, BerkeleyJohn Belcher - Massachusetts Institute of TechnologyPeter Berg - University of California, BerkeleyHenry Bergner - Harvard UniversityMatthieu Berthomier - École PolytechniquePeter Cheimets - Harvard UniversityJay Bookbinder - Harvard UniversityJonathan Cirtain - Marshall Space Flight CenterDavid Caldwell - Harvard UniversityDavid Curtis - University of California, BerkeleySteven Cranmer - University of Colorado BoulderAnthony Case - Harvard UniversityPeter Daigneau - Harvard UniversityBenjamin Chandran - University of New HampshireGreg Dalton - University of California, BerkeleyEtienne Brodu - Centre National pour la Recherche Scientifique et Technique (CNRST)Brahmananda Dasgupta - University of Alabama in HuntsvilleDavid DeTomaso - Johns Hopkins University Applied Physics LaboratoryMillan Diaz-Aguado - University of California at Berkeley Berkeley CA 94720 USABlagoje Djordjevic - University of California, BerkeleyBill Donaskowski - University of California, BerkeleyMichael Effinger - Marshall Space Flight CenterVladimir Florinski - University of Alabama in HuntsvilleNichola Fox - Johns Hopkins University Applied Physics LaboratoryMark Freeman - Harvard UniversityDennis Gallagher - Marshall Space Flight CenterS. Peter Gary - Los Alamos National LaboratoryTom Gauron - Harvard UniversityRichard Gates - Harvard UniversityMelvin Goldstein - Goddard Space Flight CenterLeon Golub - Harvard UniversityReid Gurnee - Johns Hopkins University Applied Physics LaboratoryGiora Guth - Harvard UniversityKen Hatch - University of California, BerkeleyJacob Heerikuisen - University of Alabama in HuntsvilleGeorge Ho - Johns Hopkins University Applied Physics LaboratoryQiang Hu - University of Alabama in HuntsvilleSteven Jordan - Harvard UniversityKelly Korreck - Harvard UniversityDavin Larson - University of California, BerkeleyAlan Lazarus - Massachusetts Institute of TechnologyGang Li - University of Alabama in HuntsvilleRoberto Livi - University of California, BerkeleyMichael Ludlam - University of California, BerkeleyMilan Maksimovic - Centre National pour la Recherche Scientifique et Technique (CNRST)James McFadden - University of California, BerkeleyWilliam Marchant - University of California, BerkeleyBennet Maruca - University of California, BerkeleyDavid McComas - Southwest Research InstituteLuciana Messina - University of California, BerkeleyTony Mercer - University of California, BerkeleySang Park - Harvard UniversityAndrew Peddie - Goddard Space Flight CenterNikolai Pogorelov - University of Alabama in HuntsvilleMatthew Reinhart - Johns Hopkins University Applied Physics LaboratoryJohn Richardson - Massachusetts Institute of TechnologyIrene Rosen - University of California, BerkeleyRuth Skoug - Los Alamos National LaboratoryAmanda Slagle - University of California, BerkeleyJohn Steinberg - Los Alamos National LaboratoryAdam Szabo - Goddard Space Flight CenterMichael Stevens - Harvard UniversityChris Tiu - University of California, BerkeleyPaul Turin - University of California, BerkeleyMarco Velli - University of California, Los AngelesGary Webb - University of Alabama in HuntsvillePhyllis Whittlesey - University of Alabama in HuntsvilleKen Wright - University of Alabama Huntsville Huntsville AL 35805 USAGary Zank - University of Alabama in Huntsville
- Resource Type
- Journal article
- Publication Details
- Space science reviews, Vol.204(1), pp.131-186
- DOI
- 10.1007/s11214-015-0206-3
- ISSN
- 0038-6308
- eISSN
- 1572-9672
- Publisher
- Springer Netherlands
- Grant note
- NNN10AA08T / Goddard Space Flight Center (US) (http://dx.doi.org/10.13039/100006198)
- Language
- English
- Date published
- 12/2016
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199929502771
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