A Merged Search‐Coil and Fluxgate Magnetometer Data Product for Parker Solar Probe FIELDS - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Geophysical Research Space Physics Année : 2020

A Merged Search‐Coil and Fluxgate Magnetometer Data Product for Parker Solar Probe FIELDS

Résumé

NASA's Parker Solar Probe (PSP) mission is currently investigating the local plasma environment of the inner heliosphere (<0.25 R ⊙) using both in situ and remote sensing instrumentation. Connecting signatures of microphysical particle heating and acceleration processes to macroscale heliospheric structure requires sensitive measurements of electromagnetic fields over a large range of physical scales. The FIELDS instrument, which provides PSP with in situ measurements of electromagnetic fields of the inner heliosphere and corona, includes a set of three vector magnetometers: two fluxgate magnetometers (MAGs) and a single inductively coupled search-coil magnetometer (SCM). Together, the three FIELDS magnetometers enable measurements of the local magnetic field with a bandwidth ranging from DC to 1 MHz. This manuscript reports on the development of a merged data set combining SCM and MAG (SCaM) measurements, enabling a high fidelity data product with an optimal signal-to-noise ratio. On-ground characterization tests of complex instrumental responses and noise floors are discussed as well as application to the in-flight calibration of FIELDS data. The algorithm used on PSP/FIELDS to merge waveform observations from multiple sensors with optimal signal-to-noise characteristics is presented. In-flight analysis of calibrations and merging algorithm performance demonstrates a timing accuracy to well within the survey rate sample period of ∼340 μs.
Fichier principal
Vignette du fichier
2020JA027813.pdf (6.15 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

insu-02934870 , version 1 (09-09-2020)

Identifiants

Citer

T.A. Bowen, S.D Bale, J. W. Bonnell, Thierry Dudok de Wit, K Goetz, et al.. A Merged Search‐Coil and Fluxgate Magnetometer Data Product for Parker Solar Probe FIELDS. Journal of Geophysical Research Space Physics, 2020, 125 (5), pp.e2020JA027813. ⟨10.1029/2020JA027813⟩. ⟨insu-02934870⟩
95 Consultations
212 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More