ErgSat/Mgf

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Magnetic Field Experiment (MGF)

Members

  • PI
    • Ayako Matsuoka (JAXA)
  • Co-I
    • Mariko Teramoto (Nagoya University)
    • Reiko Nomura (JAXA)
    • Nose Masahito (Kyoto University)
    • Akiko Fujimoto (Kyushu Institute of Technology)
    • Yoshimasa Tanaka (NIPR)
    • Manabu Shinohara (National Institute of Technology, Kagoshima College)
    • Tsutomu Nagatsuma (NICT)
    • Kazuo Shiokawa (Nagoya University)
    • Yuki Obana (Osaka Electro-Communication University)
    • Yoshizumi Miyoshi (Nagoya University)

Rules of the Road

Rules of the Road for the users of the products from the ERG/Arase Project

1. Users of all level of scientific products from the ERG/Arase project should contact instrument PI team(s), Project Manager (PM), and Project Scientist (PS) before using the data for any presentation and publication. PI(s) / PM (Iku Shinohara, iku at stp.isas.jaxa.jp) / PS (Yoshizumi Miyoshi, miyoshi at isee.nagoya-u.ac.jp) may suggest potential coauthor(s) from the ERG/Arase project side for the presentation and publication. Some necessary articles suggested by the PI(s) should be cited.

2. Users should always use the latest version of data files in CDF provided from the ERG science center for their data analysis, presentation and publications. Redistribution of the data files is strictly prohibited.

3.Users should send presentation materials and papers including ERG/Arase data to instrument PI team(s), PM, and PS enough before presentation and paper submission, so that sufficient time is available for those responsible for the data to check if the data are properly processed/used and to get necessary comments back to the data users.

4. Publications that use ERG/Arase satellite data should cite the project overview paper (Miyoshi et al., Earth Planets Space, DOI:10.1186/s40623-018-0862-0, 2018) and include the following text in the paper acknowledgements: "Science data of the ERG (Arase) satellite were obtained from the ERG Science Center operated by ISAS/JAXA and ISEE/Nagoya University (https://ergsc.isee.nagoya-u.ac.jp/index.shtml.en).”

Specific to MGF Data

The MGF Level-2 data should be used based on a full understanding of the measurement limit. The data are produced to achieve the accuracy of

  • the magnetic field intensity better than 5 nT
  • the magnetic field direction about 1 degree

It should be noted that there are periods when the above accuracy is not satisfied, e.g.

  • when the dynamic range is 60000nT
  • when the rms quality flag is larger than 0x15
  • during the eclipse

Besides, the accuracy of the magnetic field direction is degraded

  • when the magnetic field is less intense than 300nT.
  • when the attitude data does not have good quality

More details about the MGF data are found at this web page.

Please contact to MGF PI (Ayako Matsuoka) for the information not shown in this page.

For details of the instrument, please refer to the following article:

Matsuoka, A. et al. (2018), The ARASE (ERG) magnetic field investigation, Earth, Planets and Space, doi:10.1186/s40623-018-0800-1.

Please contact to MGF PI (Ayako Matsuoka) for the information not shown in that page.

Users are encouraged to report any suspicious data to the PI. (contact: erg_mgf_info [at] isee.nagoya-u.ac.jp)

Publications that use data from instruments onboard ERG (Arase) should include the following text in the paper acknowledgements. Science data of the ERG (Arase) satellite were obtained from the ERG Science Center operated by ISAS/JAXA and ISEE/Nagoya University

Updates on the Instrument Status, Data, Calibration, and Notes

  • 20170114
    • N/A

Past articles archived here

Instrument Specifications

Observation Modes

Observation Mode Changes

Calibration Information

Science Data Products

Provisional Data
Name Description Dimension Nominal Time Resolution Data Load Routine for SPEDAS
mag_8sec_dsi Magnetic field data in DSI coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf_pre.pro
magt_8sec Total B 110800 (time) 8s erg_load_mgf_pre.epro
rmsd_8sec_dsi RMSD for one spin in DSI coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf_pre.pro
rnsd_8sec RMSD of Bt for one spin 10800 (time) 8s erg_load_mgf_pre.pro
n_rmsd_8sec data number for RMSD estimation 10800 (time) 8s erg_load_mgf_pre.pro
dyn_rng_8sec Dynamic Range(0:±8192 nT; 1:±65536 nT) 10800 (time) 8s erg_load_mgf_pre.pro
quality_8sec Quality Flag 14 x 10800 (time) 8s erg_load_mgf_pre.pro
quality_8sec_gc Quality Flag 10800 (time) 8s erg_load_mgf_pre.pro
igrf_8sec_gse IGRF Model in GSE coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf_pre.pro
igrf_8sec_gsm IGRF Model in GSM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf_pre.pro
igrf_8sec_sm IGRF Model in SM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf_pre.pro
Level-2 Data
Name Description Dimension Nominal Time Resolution Data Load Routine for SPEDAS
mag_8sec_dsi Magnetic field data in DSI coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
mag_8sec_gse Magnetic field data in GSE coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
mag_8sec_gsm Magnetic field data in GSM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
mag_8sec_sm Magnetic field data in SM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
magt_8sec Total B 10800 (time) 8s erg_load_mgf.pro
rmsd_8sec_dsi RMSD for one spin in DSI coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
rmsd_8sec_gse RMSD for one spin in GSE coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
rmsd_8sec_gsm RMSD for one spin in GSM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
rmsd_8sec_sm RMSD for one spin in SM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
rnsd_8sec RMSD of Bt for one spin 10800 (time) 8s erg_load_mgf.pro
n_rmsd_8sec data number for RMSD estimation 10800 (time) 8s erg_load_mgf.pro
dyn_rng_8sec Dynamic Range(0:±8192 nT; 1:±65536 nT) 10800 (time) 8s erg_load_mgf.pro
quality_8sec Quality Flag 14 x 10800 (time) 8s erg_load_mgf.pro
quality_8sec_gc Quality Flag 10800 (time) 8s erg_load_mgf.pro
igrf_8sec_gse IGRF Model in GSE coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
igrf_8sec_gsm IGRF Model in GSM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro
igrf_8sec_sm IGRF Model in SM coordinate system 3(Bx, By, Bz) x 10800 (time) 8s erg_load_mgf.pro

Data Inventory (Data Archive Status)

Data repository: http://ergsc.isee.nagoya-u.ac.jp/data/ergsc/satellite/erg/mgf/

Name Processed until Latest Calibration Version Remarks