[en] The intense ultraviolet auroral emissions of Jupiter are currently being monitored in the frame of a large Hubble Space Telescope (HST) program meant to support the NASA Juno prime mission. The present study addresses the three first Juno orbits (PJ03, 04 and 05) during which HST obtained parallel observations. These three campaigns basically consist of a 2-week period bracketing the time of Juno’s closest approach of Jupiter (CA). At least one HST visit is scheduled every day during the week before and the week following CA. During the ∼12-hour period centered on CA and depending on observing constraints, several HST visits are programmed in order to obtain as many simultaneous observations with Juno-UVS as possible. In addition, at least one HST visit is obtained near Juno’s apojove, when UVS is continuously monitoring Jupiter’s global auroral power, without spatial resolution, for about 12 hours. We are using the Space Telescope Imaging Spectrograph (STIS) in time-tag mode in order to provide spatially resolved movies of Jupiter’s highly dynamic aurora with timescales ranging from seconds to several days. We discuss the preliminary exploitation of the HST data and present these results in such a way as to provide a global magnetospheric context for the different Juno instruments studying Jupiter’s magnetosphere, as well as for the numerous ground based and space based observatories participating to the Juno mission.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Grodent, Denis ; Université de Liège > STAR Institute > Labo de physique atmosphérique et planétaire (LPAP)
Gladstone, G Randall; SwRI, TX, USA
Clarke, John T.; Boston University
Bonfond, Bertrand ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Gérard, Jean-Claude ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Radioti, Aikaterini ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Nichols, Jonathan D.; University of Leicester
Bunce, Emma J.; University of Leicester
Roth, Lorenz; KTH, Sweden
Saur, Joachim; Universität zu Köln
Kimura, Tomoki; Institute of Space and Astronautical Science, JAXA, Japan
Orton, Glenn S.; NASA, JPL
Badman, Sarah V.; Lancaster University
Mauk, Barry; Johns Hopkins University
Connerney, John E. P.; NASA, GSFC
McComas, David; Princeton University, USA
Kurth, William S.; University of Iowa, USA
Adriani, Alberto; IAPS-INAF, Italy
Hansen, Candice; Planetary Sceince Institute, AZ, USA
Yao, Zhonghua ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)