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Volume 60 Supplement 4

Special Issue: Lunar Science with the SELENE “Kaguya” Mission-Prelaunch Studies-

Ground calibration of the high-sensitivity SELENE lunar magnetometer LMAG

Earth, Planets and Space volume 60, pages 353–363 (2008)Cite this article

Abstract

Ground calibration experiments of the SELENE high sensitivity fluxgate Lunar Magnetometer (LMAG) have been performed in order to determine the alignment, sensitivity, and offset of the sensors (MGF-S). It is checked out that the sensors are orthogonal to each other within 0.4 degrees, and the linearity of the ambient magnetic field and the output from the sensors are confirmed. Also, the temperature dependences of the offset and sensitivity are examined but no clear signatures of temperature dependencies can be seen. SELENE has an in-flight calibration system in order to determine the direction of the magnetometer routinely. The magnetic fields generated by the sensor alignment monitor coil (SAM-C) system are used for the in-flight calibration. The magnetic field distributions generated by SAM-C are determined and the accuracy of determination of the magnetometer position and direction is estimated. Multiple measurements will allow us to determine the direction of MGF-S with about 0.1-degree accuracy. Appropriate corrections from the results of the ground and in-flight calibrations will allow us to recover the magnetic field near the moon with accuracy about 0.1 nT.

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Authors and Affiliations

  1. Earthquake Research Institute, University of Tokyo, Tokyo, Japan

    Hisayoshi Shimizu

  2. Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo, Japan

    Futoshi Takahashi, Naoki Horii, Masaki Matsushima & Hideo Tsunakawa

  3. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, Japan

    Ayako Matsuoka

  4. Department of Earth Sciences, Kumamoto University, Kumamoto, Japan

    Hidetoshi Shibuya

Authors
  1. Hisayoshi Shimizu
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  2. Futoshi Takahashi
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  3. Naoki Horii
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  4. Ayako Matsuoka
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  5. Masaki Matsushima
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  6. Hidetoshi Shibuya
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  7. Hideo Tsunakawa
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Correspondence to Hisayoshi Shimizu.

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Shimizu, H., Takahashi, F., Horii, N. et al. Ground calibration of the high-sensitivity SELENE lunar magnetometer LMAG. Earth Planet Sp 60, 353–363 (2008). https://doi.org/10.1186/BF03352800

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  • DOI: https://doi.org/10.1186/BF03352800

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