The ARASE (ERG) magnetic field investigation
Abstract The fluxgate magnetometer for the Arase (ERG) spacecraft mission was built to investigate particle acceleration processes in the inner magnetosphere. Precise measurements of the field intensity and direction are essential in studying the motion of particles, the properties of waves interact...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-03-01
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| Series: | Earth, Planets and Space |
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| Online Access: | http://link.springer.com/article/10.1186/s40623-018-0800-1 |
| _version_ | 1818558329944801280 |
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| author | Ayako Matsuoka Mariko Teramoto Reiko Nomura Masahito Nosé Akiko Fujimoto Yoshimasa Tanaka Manabu Shinohara Tsutomu Nagatsuma Kazuo Shiokawa Yuki Obana Yoshizumi Miyoshi Makoto Mita Takeshi Takashima Iku Shinohara |
| author_facet | Ayako Matsuoka Mariko Teramoto Reiko Nomura Masahito Nosé Akiko Fujimoto Yoshimasa Tanaka Manabu Shinohara Tsutomu Nagatsuma Kazuo Shiokawa Yuki Obana Yoshizumi Miyoshi Makoto Mita Takeshi Takashima Iku Shinohara |
| author_sort | Ayako Matsuoka |
| collection | DOAJ |
| description | Abstract The fluxgate magnetometer for the Arase (ERG) spacecraft mission was built to investigate particle acceleration processes in the inner magnetosphere. Precise measurements of the field intensity and direction are essential in studying the motion of particles, the properties of waves interacting with the particles, and magnetic field variations induced by electric currents. By observing temporal field variations, we will more deeply understand magnetohydrodynamic and electromagnetic ion-cyclotron waves in the ultra-low-frequency range, which can cause production and loss of relativistic electrons and ring-current particles. The hardware and software designs of the Magnetic Field Experiment (MGF) were optimized to meet the requirements for studying these phenomena. The MGF makes measurements at a sampling rate of 256 vectors/s, and the data are averaged onboard to fit the telemetry budget. The magnetometer switches the dynamic range between ± 8000 and ± 60,000 nT, depending on the local magnetic field intensity. The experiment is calibrated by preflight tests and through analysis of in-orbit data. MGF data are edited into files with a common data file format, archived on a data server, and made available to the science community. Magnetic field observation by the MGF will significantly improve our knowledge of the growth and decay of radiation belts and ring currents, as well as the dynamics of geospace storms. |
| first_indexed | 2024-12-14T00:11:14Z |
| format | Article |
| id | doaj.art-48552a457dbf45848ecc83aec7767801 |
| institution | Directory Open Access Journal |
| issn | 1880-5981 |
| language | English |
| last_indexed | 2024-12-14T00:11:14Z |
| publishDate | 2018-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Earth, Planets and Space |
| spelling | doaj.art-48552a457dbf45848ecc83aec77678012022-12-21T23:25:44ZengSpringerOpenEarth, Planets and Space1880-59812018-03-0170111610.1186/s40623-018-0800-1The ARASE (ERG) magnetic field investigationAyako Matsuoka0Mariko Teramoto1Reiko Nomura2Masahito Nosé3Akiko Fujimoto4Yoshimasa Tanaka5Manabu Shinohara6Tsutomu Nagatsuma7Kazuo Shiokawa8Yuki Obana9Yoshizumi Miyoshi10Makoto Mita11Takeshi Takashima12Iku Shinohara13Institute of Space and Astronautical Science, Japan Aerospace Exploration AgencyInstitute for Space-Earth Environmental Research, Nagoya UniversityEnvironmental Test Technology Unit, Japan Aerospace Exploration AgencyData Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto UniversityInternational Center for Space Weather Science and Education, Kyushu UniversityNational Institute of Polar ResearchNational Institute of Technology, Kagoshima CollegeNational Institute of Information and Communications TechnologyInstitute for Space-Earth Environmental Research, Nagoya UniversityDepartment of Engineering Science, Faculty of Engineering, Osaka Electro-Communication UniversityInstitute for Space-Earth Environmental Research, Nagoya UniversityInstitute of Space and Astronautical Science, Japan Aerospace Exploration AgencyInstitute of Space and Astronautical Science, Japan Aerospace Exploration AgencyInstitute of Space and Astronautical Science, Japan Aerospace Exploration AgencyAbstract The fluxgate magnetometer for the Arase (ERG) spacecraft mission was built to investigate particle acceleration processes in the inner magnetosphere. Precise measurements of the field intensity and direction are essential in studying the motion of particles, the properties of waves interacting with the particles, and magnetic field variations induced by electric currents. By observing temporal field variations, we will more deeply understand magnetohydrodynamic and electromagnetic ion-cyclotron waves in the ultra-low-frequency range, which can cause production and loss of relativistic electrons and ring-current particles. The hardware and software designs of the Magnetic Field Experiment (MGF) were optimized to meet the requirements for studying these phenomena. The MGF makes measurements at a sampling rate of 256 vectors/s, and the data are averaged onboard to fit the telemetry budget. The magnetometer switches the dynamic range between ± 8000 and ± 60,000 nT, depending on the local magnetic field intensity. The experiment is calibrated by preflight tests and through analysis of in-orbit data. MGF data are edited into files with a common data file format, archived on a data server, and made available to the science community. Magnetic field observation by the MGF will significantly improve our knowledge of the growth and decay of radiation belts and ring currents, as well as the dynamics of geospace storms.http://link.springer.com/article/10.1186/s40623-018-0800-1EMIC waveGeospaceMagnetic fieldMagnetometerRadiation beltsRing current |
| spellingShingle | Ayako Matsuoka Mariko Teramoto Reiko Nomura Masahito Nosé Akiko Fujimoto Yoshimasa Tanaka Manabu Shinohara Tsutomu Nagatsuma Kazuo Shiokawa Yuki Obana Yoshizumi Miyoshi Makoto Mita Takeshi Takashima Iku Shinohara The ARASE (ERG) magnetic field investigation Earth, Planets and Space EMIC wave Geospace Magnetic field Magnetometer Radiation belts Ring current |
| title | The ARASE (ERG) magnetic field investigation |
| title_full | The ARASE (ERG) magnetic field investigation |
| title_fullStr | The ARASE (ERG) magnetic field investigation |
| title_full_unstemmed | The ARASE (ERG) magnetic field investigation |
| title_short | The ARASE (ERG) magnetic field investigation |
| title_sort | arase erg magnetic field investigation |
| topic | EMIC wave Geospace Magnetic field Magnetometer Radiation belts Ring current |
| url | http://link.springer.com/article/10.1186/s40623-018-0800-1 |
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