Journal article
Solar Wind Properties During Juno's Approach to Jupiter: Data Analysis and Resulting Plasma Properties Utilizing a 1‐D Forward Model
Journal of geophysical research. Space physics, Vol.123(4), pp.2772-2786
04/2018
DOI: 10.1002/2017JA024860
Abstract
The Jovian Auroral Distributions Experiment ion sensor (JADE‐I) on board the National Aeronautics and Space Administration's Juno mission measured solar wind ions for ≈40 days prior to the spacecraft's arrival at Jupiter, simultaneous with numerous telescope observations of the Jovian aurora. JADE‐I is a thermal plasma time‐of‐flight instrument designed to measure Jovian auroral and magnetospheric ions. This study provides a solar wind parameter data set for the approach phase that may be used in coordinated studies with remote measurements of the Jovian aurora, to compare with models that propagate solar wind conditions from Earth and to apply to Jovian bow shock or magnetopause models. While multiple bow shock crossings were predicted during Juno's approach, there was only one observed suggesting a compressed magnetosphere that was shrinking as Juno approached. However, the calculated ram pressure at the bow shock was near the median value of those 40 days, rather than being in an upper percentile.
Key Points
A technique to extract solar wind flow and density from coarse energy and field of view particle measurements is developed
Solar wind parameters for Juno's approach to the Jovian system are derived
On approach Juno made a single bow shock crossing, rather than predicted multiple crossings
Details
- Title: Subtitle
- Solar Wind Properties During Juno's Approach to Jupiter: Data Analysis and Resulting Plasma Properties Utilizing a 1‐D Forward Model
- Creators
- R. J. Wilson - Laboratory for Atmospheric and Space PhysicsFran Bagenal - Laboratory for Atmospheric and Space PhysicsPhilip W. Valek - Southwest Research InstituteD. J. McComas - Southwest Research InstituteFrederic Allegrini - Southwest Research InstituteRobert W. Ebert - Southwest Research InstituteThomas K. Kim - Southwest Research InstituteW. S. Kurth - University of IowaJamey R. Szalay - Princeton UniversityMichelle F. Thomsen - Planetary Science Institute
- Resource Type
- Journal article
- Publication Details
- Journal of geophysical research. Space physics, Vol.123(4), pp.2772-2786
- DOI
- 10.1002/2017JA024860
- ISSN
- 2169-9380
- eISSN
- 2169-9402
- Number of pages
- 15
- Grant note
- NASA (699041X)
- Language
- English
- Date published
- 04/2018
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984455284102771
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