Japan Geoscience Union Meeting 2024

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[E] Oral

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM10] Dynamics of Magnetosphere and Ionosphere

Mon. May 27, 2024 10:45 AM - 12:00 PM Exhibition Hall Special Setting (2) (Exhibition Hall 6, Makuhari Messe)

convener:Shun Imajo(Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University), Akimasa Ieda(Institute for Space-Earth Environmental Research, Nagoya University), Yuka Sato(Nippon Institute of Technology), Akiko Fujimoto(Kyushu Institute of Technology), Chairperson:Masahito Nose(School of Data Science, Nagoya City University), Kazuhiro Yamamoto(Graduate School of Science, The University of Tokyo)

10:45 AM - 11:00 AM

[PEM10-06] New Frontiers in Spaceflight Magnetometry: The Era of Boomless Magnetometers in Geospace Exploration

★Invited Papers

*Alex Hoffmann1, Mark Moldwin1, Shun Imajo2, Matthew Finley3, Arie Shinker4, Eftyhia Zesta3 (1.University of Michigan Ann Arbor, 2.Kyoto University, 3.NASA Goddard, 4.Soreq Nuclear Research Center)

Keywords:Magnetometer, CubeSat, Interference Removal, Machine Learning

Magnetometers are essential instruments in space physics, but their measurements are often contaminated by various external interference sources. Traditionally, the solution to spacecraft magnetic interference has involved placing magnetometers at the end of a long deployable boom. This configuration significantly increases the cost and design complexity of a spacecraft and introduces new modes of failure. However, recent advances in signal processing have enabled the use of multiple bus-mounted magnetometers to identify and remove spacecraft interference more effectively. We introduce the Magnetic signal PRocessing, Interference Mitigation, and Enhancement (MAGPRIME) library. MAGPRIME collates several advanced interference removal algorithms, such as Underdetermined Blind Source Separation (UBSS), into a single, easy-to-use, open source software package for scientists and engineers. Additionally, we present two Monte Carlo benchmarks to compare the performance of various algorithms across different spacecraft configurations. The UBSS algorithm demonstrates significant efficacy in both boomless and short-boom magnetometer designs and is slated for use in the upcoming Geospace Dynamics Constellation mission, which aims to investigate the impact of solar inputs on the Thermosphere. Furthermore, the UBSS algorithm will be employed to remove stray magnetic fields from magnetometer measurements on the Lunar Gateway space station, which is set to orbit the moon. The advent of effective bus-mounted magnetometers, facilitated by MAGPRIME, paves the way for a new era of low-cost scientific payloads, enabling them to achieve high-quality measurements.