NSSDCA ID: 1992-044A-06
Mission Name: GeotailThe objective of this experiment is to measure the magnetic field variation of the magnetotail in the frequency below 50 Hz. The MGF experiment consists of dual three-axis fluxgate magnetometers and a three-axis search coil magnetometer. Triad fluxgate sensors, which utilize a ring core geometry, are installed at the end and middle of a 6 m deployable mast. Three search coils are mounted approximately one-half of the way out on another 6 m boom together with search coils for the VLF wave in the PWI system. The fluxgate magnetometers are of standard design and consist of an amplifier, filter, phase sensitive detector, integrator, and a voltage-current convertor. The fluxgate magnetometers operate in seven dynamic ranges to cover various regions of the Earth's magnetosphere and the solar wind: +/-16 nT, +/-64 nT, +/-256 nT, +/-1024 nT, +/-4096 nT, +/-16384 nT, and +/-65536 nT, and supply 16 vectors/sec. The search coil magnetometer system consists of three sensors, preamplifier, amplifier, filter, multiplexer, and an A/D converter. The search coil magnetometers operate in a frequency range of 0.5 kHz to 1 kHz, and supply 128 vectors/sec. The fluxgate magnetometer operates in both real time and record modes, while the search coil data are used only in real time mode.
Mass: 6.1 kg
Power (avg): 3 W
Bit rate (avg): 3.584 kbps
Questions and comments about this experiment can be directed to: Dr. Ramona L. Kessel
Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Atsuhiro Nishida | Co-Investigator | Institute of Space and Aeronautical Science | nishida@stp.isas.ac.jp |
Dr. Ronald P. Lepping | Co-Investigator | NASA Goddard Space Flight Center | ronald.p.lepping@gmail.com |
Dr. Takesi Iijima | Co-Investigator | University of Tokyo | iijima@grl.s.u-tokyo.ac.jp |
Dr. Tohru Sakurai | Co-Investigator | Tokai University | |
Dr. Mario H. Acuna | Co-Investigator | NASA Goddard Space Flight Center | |
Dr. Kanji Hayashi | Co-Investigator | University of Tokyo | hayashi@grl.s.u-tokyo.ac.jp |
Dr. Hiroshi Fukunishi | Co-Investigator | University of Tohoku | fukunishi@pat.geophys.tohoku.ac.jp |
Mr. F. Tohyama | Co-Investigator | Tokai University | |
Dr. Toyo Kamei | Co-Investigator | Kyoto University | |
Dr. Kiyohumi Yumoto | Co-Investigator | Nagoya University | yumoto@stelab.nagoya-u.ac.jp |
Dr. Kazuo Shiokawa | Co-Investigator | Nagoya University | |
Dr. Yutaka Tonegawa | Co-Investigator | Tokai University | |
Dr. Tatsundo Yamamoto | Co-Investigator | University of Tokyo | |
Dr. Susumu K. Kokubun | Principal Investigator | University of Tokyo | kokobun@stelab.nagoya-u.ac.jp |