Altmetric

Fluxgate magnetometer offset vector determination by the 3D mirror mode method

File Description SizeFormat 
plaschke_et_al_MNRAS_2017b.pdfPublished version4.48 MBAdobe PDFView/Open
Title: Fluxgate magnetometer offset vector determination by the 3D mirror mode method
Authors: Plaschke, F
Goetz, C
Volwerk, M
Richter, I
Fruehauff, D
Narita, Y
Glassmeier, K-H
Dougherty, MK
Item Type: Journal Article
Abstract: Fluxgate magnetometers on-board spacecraft need to be regularly calibrated in flight. In low fields, the most important calibration parameters are the three offset vector components, which represent the magnetometer measurements in vanishing ambient magnetic fields. In case of three-axis stabilized spacecraft, a few methods exist to determine offsets: (i) by analysis of Alfvénic fluctuations present in the pristine interplanetary magnetic field, (ii) by rolling the spacecraft around at least two axes, (iii) by cross-calibration against measurements from electron drift instruments or absolute magnetometers, and (iv) by taking measurements in regions of well-known magnetic fields, e.g. cometary diamagnetic cavities. In this paper, we introduce a fifth option, the 3-dimensional (3D) mirror mode method, by which 3D offset vectors can be determined using magnetic field measurements of highly compressional waves, e.g. mirror modes in the Earth’s magnetosheath. We test the method by applying it to magnetic field data measured by the following: the Time History of Events and Macroscale Interactions during Substorms-C spacecraft in the terrestrial magnetosheath, the Cassini spacecraft in the Jovian magnetosheath and the Rosetta spacecraft in the vicinity of comet 67P/Churyumov–Gerasimenko. The tests reveal that the achievable offset accuracies depend on the ambient magnetic field strength (lower strength meaning higher accuracy), on the length of the underlying data interval (more data meaning higher accuracy) and on the stability of the offset that is to be determined.
Issue Date: 1-Jul-2017
Date of Acceptance: 26-Sep-2017
URI: http://hdl.handle.net/10044/1/64147
DOI: https://dx.doi.org/10.1093/mnras/stx2532
ISSN: 0035-8711
Publisher: Oxford University Press (OUP)
Start Page: S675
End Page: S684
Journal / Book Title: Monthly Notices of the Royal Astronomical Society
Volume: 469
Issue: Suppl_2
Copyright Statement: © 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Sponsor/Funder: The Royal Society
Science and Technology Facilities Council (STFC)
Funder's Grant Number: RP140004
ST/P006922/1
Keywords: Science & Technology
Physical Sciences
Astronomy & Astrophysics
magnetic fields
plasmas
waves
space vehicles: instruments
ELECTRON-DRIFT INSTRUMENT
MAGNETIC-FIELD DATA
EARTHS MAGNETOSHEATH
LION ROARS
SOLAR-WIND
WAVES
CALIBRATION
SPACECRAFT
CLUSTER
PERFORMANCE
0201 Astronomical And Space Sciences
Publication Status: Published
Online Publication Date: 2017-09-28
Appears in Collections:Space and Atmospheric Physics
Physics
Faculty of Natural Sciences



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Creative Commons