Energetic Charged Particle Observations During Juno's Close Flyby of Ganymede

G. Clark; P. Kollmann; B. H. Mauk; C. Paranicas; D. Haggerty; A. Rymer; H. T. Smith; J. Saur; F. Allegrini; S. Duling; R. W. Ebert; W. S. Kurth; R. Gladstone; T. K. Greathouse; W. Li; F. Bagenal; J. E. P. Connerney; S. Bolton; J. R. Szalay; A. H. Sulaiman; C. J. Hansen; D. L. Turner

doi:10.1029/2022GL098572

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Energetic Charged Particle Observations During Juno's Close Flyby of Ganymede

Journal article

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Energetic Charged Particle Observations During Juno's Close Flyby of Ganymede

G. Clark, P. Kollmann, B. H. Mauk, C. Paranicas, D. Haggerty, A. Rymer, H. T. Smith, J. Saur, F. Allegrini, S. Duling, …

Geophysical research letters, Vol.49(23), e2022GL098572

12/16/2022

DOI: 10.1029/2022GL098572

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Abstract

On 7 June 2021, NASA's Juno mission obtained unique measurements of Ganymede's magnetosphere during a close flyby that brought the spacecraft within similar to 1,000 km of its surface. Here Jupiter Energetic particle Detector Instrument observations are presented and analyzed. The electron pitch angle distributions reveal distinct regions of Ganymede's magnetosphere that can be characterized as inbound and outbound magnetospheric boundaries, a magnetotail/wake region, and Ganymede's open field line region. Evidence for energy dependent electron pitch angle structuring is also documented both outside and within Ganymede's magnetosphere. Electron precipitation is observed and mapped to Ganymede's surface along Juno's magnetic footpoint.

Geology

Physical Sciences

Geosciences, Multidisciplinary

Science & Technology

Details

Title: Subtitle: Energetic Charged Particle Observations During Juno's Close Flyby of Ganymede
Creators: G. Clark - Johns Hopkins University Applied Physics Laboratory
P. Kollmann - Johns Hopkins University Applied Physics Laboratory
B. H. Mauk - Johns Hopkins University Applied Physics Laboratory
C. Paranicas - Johns Hopkins University Applied Physics Laboratory
D. Haggerty - Johns Hopkins University Applied Physics Laboratory
A. Rymer - Johns Hopkins University Applied Physics Laboratory
H. T. Smith - Johns Hopkins University Applied Physics Laboratory
J. Saur - University of Cologne
F. Allegrini - Southwest Research Institute
S. Duling - University of Cologne
R. W. Ebert - Southwest Research Institute
W. S. Kurth - University of Iowa
R. Gladstone - Southwest Research Institute
T. K. Greathouse - Southwest Research Institute
W. Li - Boston University
F. Bagenal - Laboratory for Atmospheric and Space Physics
J. E. P. Connerney - Goddard Space Flight Center
S. Bolton - Southwest Research Institute
J. R. Szalay - Princeton University
A. H. Sulaiman - University of Iowa
C. J. Hansen - Planetary Science Institute
D. L. Turner - Johns Hopkins University Applied Physics Laboratory
Resource Type: Journal article
Publication Details: Geophysical research letters, Vol.49(23), e2022GL098572
DOI: 10.1029/2022GL098572
ISSN: 0094-8276
eISSN: 1944-8007
Publisher: Amer Geophysical Union
Number of pages: 9
Grant note: DOI: 10.13039/100011766, name: Southwest Research Institute
Language: English
Date published: 12/16/2022
Academic Unit: Physics and Astronomy
Record Identifier: 9984455265102771

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