Abstract : We propose here a cross-comparison between the observations performed by the mass spectrometer ROSINA/DFMS, which has probed the ion composition during perihelion, and the data from the five RPC sensors which have provided the plasma properties: magnetic field, ion/electron energy, spacecraft potential. The first results have revealed that there is a strong correlation between the ion count rate and composition from ROSINA/DFMS and the spacecraft potential, which affects strongly the measurements. Also, thanks to RPC/MAG, we were able to identify diamagnetic crossings. At these times, we observed a strong increase in the ion count rate from ROSINA/DFMS. We will show further comparisons with other sensors from RPC like IES and ICA.
https://hal-insu.archives-ouvertes.fr/insu-03568104 Contributor : Nathalie PothierConnect in order to contact the contributor Submitted on : Saturday, February 12, 2022 - 10:47:45 AM Last modification on : Tuesday, May 10, 2022 - 3:24:58 PM Long-term archiving on: : Friday, May 13, 2022 - 6:11:57 PM
A. Beth, K. Altwegg, E. Behar, J. L. Burch, C. Carr, et al.. Ion variability at 67P during perihelion: cross-comparison between ROSINA/DFMS and RPC dataset. European Planetary Science Congress 2017, Sep 2017, Riga Latvia, Latvia. ⟨insu-03568104⟩