Statistical Study of the Energetic Proton Environment at Titan's Orbit From the 
Cassini Spacecraft

Regoli, L. H.; Roussos, Elias; Dialynas, K.; Luhmann, J. G.; Sergis, N.; Jia, X.; Román, D.; Azari, A.; Krupp, Norbert; Jones, G. H.; Coates, A. J.; Rae, I. J.

doi:10.1029/2018JA025442

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Statistical Study of the Energetic Proton Environment at Titan's Orbit From the Cassini Spacecraft

MPS-Authors

/persons/resource/persons189139

Regoli, L. H.
Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society;

/persons/resource/persons104169

Roussos, Elias
Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society;

/persons/resource/persons104038

Krupp, Norbert
Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Regoli, L. H., Roussos, E., Dialynas, K., Luhmann, J. G., Sergis, N., Jia, X., et al. (2018). Statistical Study of the Energetic Proton Environment at Titan's Orbit From the Cassini Spacecraft. Journal of Geophysical Research: Space Physics, 123(6), 4820-4834. doi:10.1029/2018JA025442.

Cite as: https://hdl.handle.net/21.11116/0000-0002-55FB-4

Abstract

A statistical study of the energetic proton environment at Titan's orbit as captured by the MIMI/LEMMS and MIMI/CHEMS instruments is performed. The data analyzed cover all the dedicated flybys of Titan by Cassini as well as the orbit crossings that happen far from the moon. The energetic environment is found to be highly variable on timescales comparable to that of the duration of a flyby. Analysis of H⁺ ion fluxes reveals a weak asymmetry in Saturn local time with the highest fluxes occurring in the premidnight sector of the magnetosphere. A correlation between the energetic ion fluxes and the location of Cassini in the magnetosphere with respect to the center of the current sheet can be observed. Finally, an empirical model of proton spectra for energies above 20 keV is derived based on fits to Kappa distribution functions. This model can be used to better understand the interaction of Titan with the magnetosphere and the energy deposition by energetic particles below the main ionospheric peak.