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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.
Candice Hansen +2 more
exaly +3 more sources
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.
Candice Hansen +2 more
exaly +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 ...
J Douglas Menietti +2 more
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Ion Dynamics at the Magnetopause of Ganymede [PDF]
Journal of Geophysical Research: Space Physics, 2022 AbstractWe study the dynamics of the thermal O+ and H+ ions at Ganymede's magnetopause when Ganymede is inside and outside of the Jovian plasma sheet using a three‐dimensional hybrid model of plasma (kinetic ions, fluid electrons). We present the global structure of the electric fields and power density (E ⋅ J) in the magnetosphere of Ganymede and show
Andrew Poppe +2 more
exaly +6 more sources
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 ...
Jack Connerney +2 more
exaly +2 more sources
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.
Mats Holmström +2 more
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Giant impact on early Ganymede and its subsequent reorientation [PDF]
Scientific ReportsGanymede 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
Journal of Geophysical Research: Space Physics, 2013 We present four sets of ultraviolet images of Ganymede acquired with the Hubble Space Telescope (HST) from 1998 to 2007, all of which show auroral emission from electron excited atomic oxygen. The three different hemispheres of Ganymede captured in the observations show strikingly different emission morphologies.
Kurt Retherford, , Xianzhe Jia
exaly +3 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 +4 more
doaj +1 more source
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 +12 more
doaj +1 more source