EGU25-8338, updated on 14 Mar 2025
https://doi.org/10.5194/egusphere-egu25-8338
EGU General Assembly 2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Oral | Monday, 28 Apr, 12:00–12:10 (CEST)
 
Room 1.85/86
Observations of Mercury’s plasma environment along BepiColombo’s sixth swingby on 8 Jan 2025
Norbert Krupp1, Markus Fränz1, Daniel Teubenbacher2, Willi Exner3, Daniel Heyner4, Lina Z. Hadid5, Ali Varsani2, Yuki Harada6, Sae Aizawa5, Nicolas Andre7, Anna Milillo8, Yoshifumi Saito9, Dominique Delcourt10, Fabio Prencipe1, Harald Krüger1, Gunter Laky2, Bruno Katra5, Christophe Verdeil7, Shoichiro Yokota11, and Björn Fiethe4
Norbert Krupp et al.
  • 1Max-Planck-Institut für Sonnensystemforschung, Göttingen, Germany (krupp@mps.mpg.de)
  • 2IWF, Graz, Austria
  • 3ESA-ESTEC, Noordwijk, The Netherlands
  • 4IGEP, TU Braunschweig, Braunschweig, Germany
  • 5LPP, Paris, France
  • 6University of Kyoto, Kyoto, Japan
  • 7IRAP, Universite Paul Sabatier,Toulouse, France
  • 8INAF-IAPS, Rome, Italy
  • 9ISAS-JAXA, Tokyo, Japan
  • 10LPC2E, Orleans, France
  • 11Osaka University, Osaka, Japan

The BepiColombo mission to Mercury consists of two spacecraft MPO and MIO and was launched in 2018. During the cruise phase towards the target the spacecraft performed its last close flyby near Mercury on 8 Jan 2025 (MSB6). This was the last flyby before going into orbit around the innermost planet at the end of 2026. We report on particle results from the Mass Spectrum Analyzer MSA on MIO and the Planetary Ion Camera PICAM onboard MPO together with magnetic field data MAG and hybrid simulation during this flyby. PICAM measured solar wind upstream and recorded the magnetospheric and magnetosheath plasma at various energies while MSA recorded the ion composition during the flyby including H+, He++, He+, Na+ and other heavy ions. Most of Na+ was seen near closest approach in the shadow of the planet which agrees well with AIKEF hybrid model results.

 

How to cite: Krupp, N., Fränz, M., Teubenbacher, D., Exner, W., Heyner, D., Hadid, L. Z., Varsani, A., Harada, Y., Aizawa, S., Andre, N., Milillo, A., Saito, Y., Delcourt, D., Prencipe, F., Krüger, H., Laky, G., Katra, B., Verdeil, C., Yokota, S., and Fiethe, B.: Observations of Mercury’s plasma environment along BepiColombo’s sixth swingby on 8 Jan 2025, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-8338, https://doi.org/10.5194/egusphere-egu25-8338, 2025.