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| Titel |
Results of Joint Observations of Jupiter’s Atmosphere by Juno and a Network of Earth-Based Observing Stations |
| VerfasserIn |
Glenn Orton, Thomas Momary, Scott Bolton, Steven Levin, Candice Hansen, Michael Janssen, Alberto Adriani, G. Randall Gladstone, Fran Bagenal, Andrew Ingersoll |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250140531
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| Publikation (Nr.) |
 EGU/EGU2017-3931.pdf |
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| Zusammenfassung |
| The Juno mission has promoted and coordinated a network of Earth-based observations,
including both Earth-proximal and ground-based facilities, to extend and enhance observations
made by the Juno mission. The spectral region and timeline of all of these observations are
summarized in the web site: https://www.missionjuno.swri.edu/planned-observations. Among
the earliest of these were observation of Jovian auroral phenomena at X-ray, ultraviolet and
infrared wavelengths and measurements of Jovian synchrotron radiation from the Earth
simultaneously with the measurement of properties of the upstream solar wind. Other
observations of significance to the magnetosphere measured the mass loading from Io by
tracking its observed volcanic activity and the opacity of its torus. Observations of Jupiter’s
neutral atmosphere included observations of reflected sunlight from the near-ultraviolet
through the near-infrared and thermal emission from 5 μm through the radio region. The
point of these measurements is to relate properties of the deep atmosphere that are the focus
of Juno’s mission to the state of the “weather layer” at much higher atmospheric levels. These
observations cover spectral regions not included in Juno’s instrumentation, provide spatial
context for Juno’s often spatially limited coverage of Jupiter, and they describe the
evolution of atmospheric features in time that are measured only once by Juno. We will
summarize the results of measurements during the approach phase of the mission that
characterized the state of the atmosphere, as well as observations made by Juno and the
supporting campaign during Juno’s perijoves 1 (2016 August 27), 3 (2016 December
11), 4 (2017 February 2) and possibly “early” results from 5 (2017 March 27).
Besides a global network of professional astronomers, the Juno mission also benefited
from the enlistment of a network of dedicated amateur astronomers who provided a
quasi-continuous picture of the evolution of features observed by Juno’s instruments. |
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