Europlanet Science Congress 2021
Virtual meeting
13 – 24 September 2021
Europlanet Science Congress 2021
Virtual meeting
13 September – 24 September 2021
EPSC Abstracts
Vol. 15, EPSC2021-169, 2021, updated on 21 Jul 2021
European Planetary Science Congress 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

The Particle Environment Package on board JUICE: What Can We Learn about Callisto's Atmosphere and Space Environment?

André Galli1, Audrey Vorburger1, Shane R. Carberry Mogan2, Elias Roussos3, Gabriella Stenberg-Wieser4, Peter Wurz1, Martina Föhn1, Norbert Krupp3, Markus Fraenz3, Stas Barabash4, Yoshifumi Futaana4, Pontus C. Brandt5, Peter Kollmann5, Dennis Haggerty5, Geraint H. Jones6, Robert E. Johnson7, Orenthal J. Tucker8, Sven Simon9, Tyler F. Tippens9, and Lucas Liuzzo10
André Galli et al.
  • 1University of Bern, Physics Institute, Switzerland (
  • 2Center for Space Science, NYU Abu Dhabi, UAE
  • 3Max Planck Institute for Solar System Research, Germany
  • 4Swedish Institute of Space Physics, Sweden
  • 5Johns Hopkins University, USA
  • 6University College London, UK
  • 7University of Virginia, USA
  • 8NASA Goddard Space Flight Center, USA
  • 9School of Earth & Atmospheric Sciences, Georgia Institute of Technology, Atlanta, USA
  • 10Space Sciences Laboratory, University of California, Berkeley, USA

The JUpiter ICy moons Explorer (JUICE) of the European Space Agency will investigate Jupiter and its icy moons Europa, Ganymede, and Callisto, with the aim to better understand the origin and evolution of our Solar System and the emergence of habitable worlds around gas giants. The Particle Environment Package (PEP) on board JUICE is designed to measure neutrals, ions, electrons, and energetic particles over an energy range from eV to MeV.

In the vicinity of Callisto, PEP will characterize the Jovian plasma environment and the outer parts of Callisto’s atmosphere and ionosphere. Roughly twenty Callisto flybys with closest approaches between 200 km and 5000 km altitude are planned over the course of the JUICE mission. This study aims at optimizing the scientific insight gained from the foreseen flybys by combining the input from the PEP science team and operation planning with recent model efforts for Callisto’s atmosphere, the plasma environment and the production of Energetic Neutral Atoms. The results of this study will inform both science operation planning of PEP and JUICE and they will guide future model development for Callisto’s atmosphere, ionosphere, and their interaction with the plasma environment.

How to cite: Galli, A., Vorburger, A., Carberry Mogan, S. R., Roussos, E., Stenberg-Wieser, G., Wurz, P., Föhn, M., Krupp, N., Fraenz, M., Barabash, S., Futaana, Y., Brandt, P. C., Kollmann, P., Haggerty, D., Jones, G. H., Johnson, R. E., Tucker, O. J., Simon, S., Tippens, T. F., and Liuzzo, L.: The Particle Environment Package on board JUICE: What Can We Learn about Callisto's Atmosphere and Space Environment?, European Planetary Science Congress 2021, online, 13–24 Sep 2021, EPSC2021-169,, 2021.

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