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Juno's Close Encounter With Ganymede—An Overview [PDF]

Geophysical Research Letters, 2022
The Juno spacecraft has been in orbit around Jupiter since 2016. Two flybys of Ganymede were executed in 2021, opportunities realized by evolution of Juno's polar orbit over the intervening 5 years.
C J Hansen, Ali H Sulaiman, Stefan Duling   +2 more
exaly   +4 more sources

Ganymede Observations by JunoCam on Juno Perijove 34 [PDF]

Geophysical Research Letters, 2022
During the Juno Mission's encounter with Ganymede on 7 June 2021, the Juno camera (JunoCam) acquired four images of Ganymede in color. These images covered one‐sixth of Ganymede at scales from 840 m to ∼4 km/pixel.
M. A. Ravine, C. J. Hansen, G. C. Collins, P. M. Schenk, M. A. Caplinger, L. Lipkaman Vittling, D. J. Krysak, R. P. Zimdar, J. B. Garvin, S. J. Bolton   +9 more
doaj   +3 more sources

Juno Plasma Wave Observations at Ganymede [PDF]

Geophysical Research Letters, 2022
The Juno Waves instrument measured plasma waves associated with Ganymede's magnetosphere during its flyby on 7 June, day 158, 2021. Three distinct regions were identified including a wake, and nightside and dayside regions in the magnetosphere ...
W. S. Kurth, A. H. Sulaiman, G. B. Hospodarsky, J. D. Menietti, B. H. Mauk, G. Clark, F. Allegrini, P. Valek, J. E. P. Connerney, J. H. Waite, S. J. Bolton, M. Imai, O. Santolik, W. Li, S. Duling, J. Saur, C. Louis   +16 more
doaj   +3 more sources

Hydrogen peroxide at the poles of Ganymede [PDF]

Science Advances, 2023
Ganymede is the only satellite in the solar system known to have an intrinsic magnetic field. Interactions between this field and the Jovian magnetosphere are expected to funnel most of the associated impinging charged particles, which radiolytically ...
Samantha K Trumbo, Michael E Brown, Dominique Bockelée-Morvan   +2 more
exaly   +3 more sources

UVS Observations of Ganymede's Aurora During Juno Orbits 34 and 35

Geophysical Research Letters, 2022
On 7 June 2021, Juno‐UVS mapped Ganymede's auroral emissions near a closest approach altitude of 1,046 km. The high spatial resolution map exhibits bright, 200–1,000 R, oxygen emissions organized into northern and southern auroral ovals.
T K Greathouse, G Randall Gladstone, Philippa Molyneux   +2 more
exaly   +3 more sources

Plasma Observations During the 7 June 2021 Ganymede Flyby From the Jovian Auroral Distributions Experiment (JADE) on Juno

Geophysical Research Letters, 2022
We report on plasma observations from Juno/Jovian Auroral Distributions Experiment during the Ganymede flyby on 7 June 2021. Juno approached Ganymede from southern latitudes, passed through the wake region, then through its magnetosphere to closest ...
F. Allegrini, F. Bagenal, R. W. Ebert, P. Louarn, D. J. McComas, J. R. Szalay, P. Valek, R. Wilson, S. J. Bolton, J. E. P. Connerney, G. Clark, S. Duling, W. S. Kurth, B. Mauk, J. Saur, J. H. Waite   +15 more
doaj   +2 more sources

Ganymede's Ionosphere Observed by a Dual‐Frequency Radio Occultation With Juno

Geophysical Research Letters, 2022
In June 2021, the Juno spacecraft executed a close flyby of Ganymede. During the encounter, Juno passed behind Ganymede for 15 min as observed from Earth, providing the geometry to conduct a radio occultation experiment to probe Ganymede's tenuous ...
D. R. Buccino, M. Parisi, E. Gramigna, L. Gomez‐Casajus, P. Tortora, M. Zannoni, A. Caruso, R. S. Park, P. Withers, P. Steffes, A. Hodges, S. Levin, S. Bolton   +12 more
doaj   +2 more sources

Giant impact on early Ganymede and its subsequent reorientation [PDF]

Scientific Reports
Ganymede has an ancient impact structure called a furrow system. The furrow system is the largest impact structure in the outer solar system, and the impact should have significantly affected Ganymede’s early history; however, its effects are poorly ...
Naoyuki Hirata
doaj   +2 more sources

On the formation of Ganymede's surface brightness asymmetries: Kinetic simulations of Ganymede's magnetosphere

Geophysical Research Letters, 2016
Ganymede possesses strong surface brightness asymmetries both between its polar cap and equatorial regions and between its leading and trailing hemispheres.
Andrew Poppe, Mats Holmstrom
exaly   +2 more sources

Design of Ganymede-Synchronous Frozen Orbit around Europa

Mathematics, 2022
A Ganymede-synchronous frozen orbit around Europa provides a stable spatial geometry between a Europa probe and a Ganymede lander, which facilitates the observation of Ganymede and data transmission between probes.
Xuxing Huang, Bin Yang, Shuang Li, Jinglang Feng, Josep J. Masdemont   +4 more
doaj   +1 more source