Journal ArticleDOI
Magnetospheric Science Objectives of the Juno Mission
Fran Bagenal,Alberto Adriani,Frederic Allegrini,Frederic Allegrini,Scott Bolton,Bertrand Bonfond,Emma J. Bunce,John E. P. Connerney,Stanley W. H. Cowley,Robert Ebert,G. R. Gladstone,Candice Hansen,William S. Kurth,Steven Levin,Barry Mauk,David J. McComas,David J. McComas,Chris Paranicas,Daniel Santos-Costa,Richard M. Thorne,Phil Valek,Phil Valek,J. H. Waite,P. Zarka +23 more
Reads0
Chats0
TLDR
Junior as discussed by the authors is the first spacecraft to enter polar orbit of Jupiter and venture deep into unexplored polar territories of the magnetosphere, where it carries a range of instruments that take particles and fields measurements, remote sensing observations of auroral emissions at UV, visible, IR and radio wavelengths, and detect microwave emission from Jupiter's radiation belts.Abstract:
In July 2016, NASA’s Juno mission becomes the first spacecraft to enter polar orbit of Jupiter and venture deep into unexplored polar territories of the magnetosphere. Focusing on these polar regions, we review current understanding of the structure and dynamics of the magnetosphere and summarize the outstanding issues. The Juno mission profile involves (a) a several-week approach from the dawn side of Jupiter’s magnetosphere, with an orbit-insertion maneuver on July 6, 2016; (b) a 107-day capture orbit, also on the dawn flank; and (c) a series of thirty 11-day science orbits with the spacecraft flying over Jupiter’s poles and ducking under the radiation belts. We show how Juno’s view of the magnetosphere evolves over the year of science orbits. The Juno spacecraft carries a range of instruments that take particles and fields measurements, remote sensing observations of auroral emissions at UV, visible, IR and radio wavelengths, and detect microwave emission from Jupiter’s radiation belts. We summarize how these Juno measurements address issues of auroral processes, microphysical plasma physics, ionosphere-magnetosphere and satellite-magnetosphere coupling, sources and sinks of plasma, the radiation belts, and the dynamics of the outer magnetosphere. To reach Jupiter, the Juno spacecraft passed close to the Earth on October 9, 2013, gaining the necessary energy to get to Jupiter. The Earth flyby provided an opportunity to test Juno’s instrumentation as well as take scientific data in the terrestrial magnetosphere, in conjunction with ground-based and Earth-orbiting assets.read more
Citations
More filters
Journal ArticleDOI
The Juno Magnetic Field Investigation
John E. P. Connerney,Mathias Benn,J. B. Bjarno,Troelz Denver,Jared Espley,John Leif Jørgensen,Peter Stanley Jørgensen,P. Lawton,A. Malinnikova,José M.G. Merayo,S. Murphy,J. Odom,Ronald J. Oliversen,R. Schnurr,D. Sheppard,Edward J. Smith +15 more
TL;DR: The magnetometer sensors are controlled by independent and functionally identical electronics boards within the magnetometer electronics package mounted inside Juno's massive radiation shielded vault as mentioned in this paper, and the imaging system sensors are part of a subsystem that provides accurate attitude information near the point of measurement of the magnetic field.
Journal ArticleDOI
The Jovian Auroral Distributions Experiment (JADE) on the Juno Mission to Jupiter
David J. McComas,David J. McComas,N. Alexander,Frederic Allegrini,Frederic Allegrini,Fran Bagenal,Chip R. Beebe,George Clark,George Clark,F. J. Crary,M. I. Desai,M. I. Desai,A. De Los Santos,D. Demkee,J. Dickinson,d. T. Everett,Tiffany J. Finley,A. Gribanova,R.D. Hill,J. Johnson,C. Kofoed,C. Loeffler,P. Louarn,M. Maple,W. Mills,Craig J. Pollock,Craig J. Pollock,M. Reno,B. Rodriguez,Jean-Noël Rouzaud,Daniel Santos-Costa,Phil Valek,Phil Valek,S. Weidner,P. Wilson,Robert Wilson,D. White +36 more
TL;DR: The Jovian Auroral Distributions Experiment (JADE) on Juno provides the critical in situ measurements of electrons and ions needed to understand the plasma energy particles and processes that fill the Jupiter magnetosphere and ultimately produce its strong aurora as mentioned in this paper.
Journal Article
Energetic ion characteristics and neutral gas interactions in Jupiter's magnetosphere : Cassini flyby of Jupiter
Barry Mauk,Donald G. Mitchell,R. W. McEntire,Chris Paranicas,Edmond C. Roelof,D. J. Williams,Stamatios M. Krimigis,Andreas Lagg +7 more
TL;DR: In this paper, spectral, integral moments, and composition (H, He, O, S) of energetic ions (50 keV to 50 MeV) are presented for selected Jupiter magnetospheric positions near the equator between radial distances of ∼6 to ∼46 Jupiter radii (R J ), as revealed by analysis of the Galileo Energetic Particle Detector data.
Journal ArticleDOI
The Juno Mission
Scott Bolton,Jonathan I. Lunine,D. J. Stevenson,John E. P. Connerney,Steven Levin,Tobias Owen,Fran Bagenal,D. Gautier,Andrew P. Ingersoll,Glenn S. Orton,Tristan Guillot,William B. Hubbard,Jeremy Bloxham,Angioletta Coradini,S. K. Stephens,Prachet Mokashi,Richard M. Thorne,Rob Thorpe +17 more
TL;DR: Juno is a PI-led mission to Jupiter, the second mission in NASA’s New Frontiers Program as mentioned in this paper, which carries eight science instruments that perform nine science investigations (radio science utilizes the communications antenna).
Journal ArticleDOI
The Jupiter Energetic Particle Detector Instrument (JEDI) Investigation for the Juno Mission
Barry Mauk,Dennis Haggerty,S. E. Jaskulek,C. E. Schlemm,L. E. Brown,S. A. Cooper,R. S. Gurnee,C. M. Hammock,John Hayes,George C. Ho,J. C. Hutcheson,A. D. Jacques,S. Kerem,C. K. Kim,Donald G. Mitchell,K. S. Nelson,Chris Paranicas,Nikolaos Paschalidis,E. Rossano,M. R. Stokes +19 more
TL;DR: The Jupiter Energetic Particle Detector Instruments (JEDI) on the Juno Jupiter polar-orbiting, atmosphere-skimming, mission to Jupiter will coordinate with the several other space physics instruments on the NASA Juno spacecraft to characterize and understand the space environment of Jupiter's polar regions, and specifically to understand the generation of Jupiter’s powerful aurora.
References
More filters
Journal ArticleDOI
Interplanetary Magnetic Field and the Auroral Zones
TL;DR: In this article, it was found that a model with a southward interplanetary magnetic field leads to a natural explanation of the SD currents and speculative aspects of the problem as they appear at this time are discussed.
Introduction to Space Physics
TL;DR: A brief history of solar terrestrial physics can be found in this paper, where the authors describe the solar wind, the solar magnetic field, and the solar ionosphere of outer planets, as well as the aurora and the auroral ionosphere.
Journal ArticleDOI
A new theory of magnetic storms
S. Chapman,V. C. A. Ferraro +1 more
TL;DR: In this article, the shape of the hollow formed by the magnetic field is discussed, but the authors defer this consideration until they have a clearer understanding of the mode in which the ions near the surface of the stream are able to advance into the Earth's magnetic field.
Journal ArticleDOI
Parallel electric fields
TL;DR: In this paper, a steady state one-dimensional model is used to estimate the electron current along a field line from the auroral zone to the plasmasheet when a potential difference exists between its ends.
Journal ArticleDOI
A new dynamic approach for statistical optimization of GNSS radio occultation bending angles for optimal climate monitoring utility
Yongxiang Li,Gottfried Kirchengast,Barbara Scherllin-Pirscher,Suqin Wu,M. Schwaerz,J. Fritzer,S. Zhang,Brett Carter,Kefei Zhang +8 more
TL;DR: An advanced dynamic statistical optimization algorithm is introduced, which uses bending angles from multiple days of European Centre for Medium-range Weather Forecasts (ECMWF) short-range forecast and analysis fields, together with averaged-observed bending angles, to obtain background profiles and associated error covariance matrices with geographically varying background uncertainty estimates on a daily updated basis.