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

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. SulaimanC. J. Hansen, D. L. Turner

Astrophysical Sciences

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18 Scopus citations

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 ∼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.

Original language	English (US)
Article number	e2022GL098572
Journal	Geophysical Research Letters
Volume	49
Issue number	23
DOIs	https://doi.org/10.1029/2022GL098572
State	Published - Dec 16 2022

All Science Journal Classification (ASJC) codes

Geophysics
General Earth and Planetary Sciences

Keywords

energetic particles
Ganymede
JEDI
Juno
mini-magnetosphere
moon-magnetosphere interaction

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10.1029/2022GL098572

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Clark, G., Kollmann, P., Mauk, B. H., Paranicas, C., Haggerty, D., Rymer, A., Smith, H. T., Saur, J., Allegrini, F., Duling, S., Ebert, R. W., Kurth, W. S., Gladstone, R., Greathouse, T. K., Li, W., Bagenal, F., Connerney, J. E. P., Bolton, S., Szalay, J. R., ... Turner, D. L. (2022). Energetic Charged Particle Observations During Juno's Close Flyby of Ganymede. Geophysical Research Letters, 49(23), Article e2022GL098572. https://doi.org/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 ∼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.",

keywords = "energetic particles, Ganymede, JEDI, Juno, mini-magnetosphere, moon-magnetosphere interaction",

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

year = "2022",

month = dec,

day = "16",

doi = "10.1029/2022GL098572",

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Clark, G, Kollmann, P, Mauk, BH, Paranicas, C, Haggerty, D, Rymer, A, Smith, HT, Saur, J, Allegrini, F, Duling, S, Ebert, RW, Kurth, WS, Gladstone, R, Greathouse, TK, Li, W, Bagenal, F, Connerney, JEP, Bolton, S, Szalay, JR, Sulaiman, AH, Hansen, CJ & Turner, DL 2022, 'Energetic Charged Particle Observations During Juno's Close Flyby of Ganymede', Geophysical Research Letters, vol. 49, no. 23, e2022GL098572. https://doi.org/10.1029/2022GL098572

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AU - Clark, G.

AU - Kollmann, P.

AU - Mauk, B. H.

AU - Paranicas, C.

AU - Haggerty, D.

AU - Rymer, A.

AU - Smith, H. T.

AU - Saur, J.

AU - Allegrini, F.

AU - Duling, S.

AU - Ebert, R. W.

AU - Kurth, W. S.

AU - Gladstone, R.

AU - Greathouse, T. K.

AU - Li, W.

AU - Bagenal, F.

AU - Connerney, J. E.P.

AU - Bolton, S.

AU - Szalay, J. R.

AU - Sulaiman, A. H.

AU - Hansen, C. J.

AU - Turner, D. L.

PY - 2022/12/16

Y1 - 2022/12/16

N2 - On 7 June 2021, NASA's Juno mission obtained unique measurements of Ganymede's magnetosphere during a close flyby that brought the spacecraft within ∼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.

AB - On 7 June 2021, NASA's Juno mission obtained unique measurements of Ganymede's magnetosphere during a close flyby that brought the spacecraft within ∼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.

KW - energetic particles

KW - Ganymede

KW - JEDI

KW - Juno

KW - mini-magnetosphere

KW - moon-magnetosphere interaction

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JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 23

M1 - e2022GL098572

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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