EGU24-6708, updated on 08 Mar 2024
https://doi.org/10.5194/egusphere-egu24-6708
EGU General Assembly 2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Multi-wavelength Observations of Jupiter’s Northern Circumpolar Cyclones

Scott Bolton1, Shawn Brueshaber2, Glenn Orton3, Candy Hansen4, Steve Levin3, Alessandro Mura5, Davide Grassi5, Leigh Fletcher6, John Rogers7, Gerald Eichstädt8, Mike Wong9, Andy Ingersoll10, Anton Ermakov11, and Cheng Li12
Scott Bolton et al.
  • 1Southwest Research Institute, Space Science and Engineering, United States of America (scott.bolton@swri.org)
  • 2Michigan Technological University
  • 3Jet Propulsion Laboratory/California Institute of Technology
  • 4Planetary Science Institute
  • 5Institute for Space Astrophysics and Planetology INAF-IAPS
  • 6University of Leicester
  • 7British Astronomical Society
  • 8Independent Researcher, Stuttgart, Germany
  • 9Carl Sagan Center for Research, SETI Institute
  • 10Caltech
  • 11Department of Aeronautics and Astronautics, Stanford University
  • 12University of Michigan

Juno arrived at Jupiter in 2016 and was inserted into a polar orbit with its closest approach (“perijove”) near Jupiter’s equator.  One of Juno’s first major discoveries was the existence of circumpolar cyclones covering both of Jupiter’s poles. Over the course of Juno’s prime and extended missions, the line of apsides of the orbit has experienced a constant northward migration due to Jupiter’s asymmetric gravity field. One result of this migration is the lowering the spacecraft’s altitude over Jupiter’s north pole.  Recently, the altitude over the north pole has reduced sufficiently to allow Juno’s microwave radiometer (MWR) to resolve Jupiter’s circumpolar cyclones.  The observations provide new insights into how the circumpolar cyclones evolve with depth.  We will present results from multi-wavelength observations of Jupiter’s polar cyclones including visible light images (JunoCam), the infrared images (JIRAM) and microwave images (MWR).  The combined data set reveals information on how the circumpolar cyclones compare and evolve with depth. 

How to cite: Bolton, S., Brueshaber, S., Orton, G., Hansen, C., Levin, S., Mura, A., Grassi, D., Fletcher, L., Rogers, J., Eichstädt, G., Wong, M., Ingersoll, A., Ermakov, A., and Li, C.: Multi-wavelength Observations of Jupiter’s Northern Circumpolar Cyclones, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-6708, https://doi.org/10.5194/egusphere-egu24-6708, 2024.