ISEE Magnetometer Home Page .
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GEOGRAPHIC AND GEOMAGNETIC COORDINATES
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calculation: dipole geomagnetic coordinates (IGRF, epoch:2000 to 2021)
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glat glon mlat mlon inclination declination collaborators
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IST 70.03 88.01 60.6 166.6 83.79 19.30 ISTP (SB, RAS)
HUS 64.67 338.97 64.9 66.2 75.78 -14.34 NIPR/U.Iceland
GAK 62.39 214.78 63.6 268.51 75.80 18.31 NICT, GI-UAF, UNH
MGD 60.05 150.73 51.9 213.2 71.56 -11.02 IKIR (FEB, RAS)
NAI 56.54 298.269 65.8 14.8 75.36 -22.92 NICT, Augsburg College
ATH 54.71 246.69 61.7 306.2 76.57 17.4 U.Athabasca/U.Calgary (AUGO-I, before 161024)
ATH 54.60 246.36 61.1 307.8 76.00 15.1 U.Athabsca (AUGSO, after 161025)
LCL 51.0 252.9 58.2 317.3 74.3 10.4 U.Athabasca, GADC project
ZGN 66.78 123.37 57.23 191.64 80.7 -15.6 IKFIA/YSC (SB, RAS)
PTK 52.97 158.248 45.8 221.4 64.6 -6.5 IKIR (FEB, RAS)
KAP 49.39 277.81 58.7 347.6 74.17 -10.19 NICT, Virginia Tech.
MSR 44.37 142.27 35.6 209.5 58.58 -9.5 ISEE Observatory (MOS)
RIK 43.46 143.77 34.7 210.8 57.8 -9.1 ISEE Observatory
KAG 31.48 130.72 21.9 200.6 45.1 -6.1 ISEE Observatory
STA 31.02 130.68 21.2 200.5 44.8 -5.8 Kagoshima University
KNG 26.76 128.21 17.8 199.6 39.0 -5.6 Ryukyu University
MUT 14.37 121.02 5.3 193.30 16.8 -2.6 NAMRIA
KTB -0.20 100.32 -10.63 171.93 -20.10 -0.6 RISH(Kyoto U.)/LAPAN
MDM -45.60 170.09 -52.81 255.55 -70.9 24.8 Osaka Electro-Communication University
TEW -41.18 175.83 -47.11 259.50 -66.5 22.4 Osaka Electro-Communication University
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Calibration Data (sensitivity and phase) of Induction Magnetometers (induction_cal_data_all.txt)
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station A/D board input voltage
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HUS +/-10V=16bit
GAK +/- 5V=16bit
NAI +/- 5V=16bit
ATH +/- 5V=16bit
ZGN +/- 5V=16bit
KAP +/- 5V=16bit
MSR +/- 5V=16bit
STA +/- 5V=16bit
KNG +/-10V=16bit
MUT +/- 5V=16bit
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------ Current Configuration -----------
* Sensitivities and turnover frequencies are those for the H-component sensors.
D- and Z-component sensors have basically the same specifications to
those of the H-component sensors.
Istok (IST or ITK), Russia : 70.03N, 88.01E
Induction Magnetometer of ISTP (January 2017-)
LEMI-30 magnetometer, 2-components (H and D), 64Hz sampling
Husafell (HUS), Iceland : 64.67N, 338.97E
Induction Magnetometer of NIPR (March 20, 2017-)
NIPR magnetometer
64Hz sampling triggered by PC clock signal, only H and D components
after September 5, 2018, the induction magnetometer was replaced to a new one.
turnover frequency: 1.4 Hz
sensitivity: 0.4720 V/nT at 1.4 Hz (at gain volume 6th from the bottom)
0.02328 V/nT at 0.1 Hz
Gakona (GAK), Alaska : 62.39N, 214.78E
Induction Magnetometer (March 3, 2017-):
NICT magnetometer: amp002+ sensor 0808(H)+0809(D)
64Hz sampling triggered by PC clock signal, only H and D components
turnover frequency: 2.0 Hz
senstivity: 0.60V/nT at 2.0 Hz
0.28V/nT at 0.2Hz
polarity: positive=northward, eastward
Nain (NAI), Canada: 56.54N, 298.269E
Induction Magnetometer (September 11, 2018 - August 31, 2023)
NICT magnetometer: amp003+sensor 0810(H)+0811(D)
64Hz sampling triggered by PC clock signal, only H and D components
turnover frequency: 2.0 Hz
senstivity: 0.61V/nT at 2.0 Hz
0.26V/nT at 0.2Hz
polarity: positive=northward, eastward
Kapuskasing (KAP), Canada : 49.39N, 277.81E
Induction Magnetometer (December 14, 2016-):
NICT magnetometer: amp001+sensor 0805(H)+0806(D)
64Hz sampling triggered by PC clock signal, only H and D components
turnover frequency: 2.0 Hz
senstivity: 0.59V/nT at 2.0 Hz
0.31V/nT at 0.2Hz
polarity: positive=northward, eastward
Athabasca (ATH), Canada : 54.7N, 246.7E
Induction Magnetometer (Sept.7, 2005-):
64Hz sampling triggered by PC clock signal
turnover frequency: 5.5 Hz
senstivity: 0.455V/nT at 5.5 Hz
0.00810V/nT at 0.1Hz
polarity: positive=northward, eastward, upward
This magnetometer is moved from AUGO-I to AUGSO on Oct.25, 2016
After Oct. 25, 2016 : 54.60N, 246.36E, Z-component is replaced by the riometer
64Hz sampling triggered by PC clock signal
turnover frequency: 5.5 Hz
senstivity: 0.455V/nT at 5.5 Hz
0.00810V/nT at 0.1Hz
polarity: positive=northward, eastward
Lucky Lake (LCL), Canada : 51.0N, 252.9E
Fluxgate Magnetometer and Induction Magnetometer (July 31, 2020-):
8ch x 64Hz sampling triggered by PC clock signal with a GPS receiver
from fluxgate: ch.1: H, ch.2: D, ch.3: Z, ch.4: 50 Ohm terminator
from induction coil: ch.5: dH/dt, ch.6: dD/dt, ch.7: dZ/dt, ch.8: GPS-1PPS
fluxgate magnetometer cal: 2000nT/10V
The fluxgate and induction magnetometer sensors are leftovers from the
GADC project (by Dr. Kanji Hayashi of Univ. of Tokyo) and re-activated by
the Athabasca University through the MAMA-MIA project.
Zhigansk (ZGN), Russia : 66.78N, 123.37E
Induction Magnetometer (September 14, 2016-)
64Hz sampling triggered by GPS clock signal
turnover frequency: 1.4 Hz
sensitivity: 0.380 V/nT at 1.4 Hz
0.0238 V/nT at 0.1 Hz
polarity: positive=northward, eastward, downward
Magadan (MGD), Russia : 60.0513467N, 150.7292683E
Induction Magnetometer (November 5, 2008-)
64Hz sampling triggered by GPS clock signal
turnover frequency: 1.4 Hz
sensitivity: 0.450 V/nT at 1.7 Hz
0.0218 V/nT at 0.1 Hz
polarity: positive=northward, eastward, downward
Paratunka (PTK), Russia : 52.9720466N, 158.24762E
Induction Magnetometer (Aug.21, 2007-)
64Hz sampling triggered by GPS clock signal
turnover frequency: 1.8 Hz
sensitivity: 0.450 V/nT at 1.8 Hz
0.0199 V/nT at 0.1 Hz
polarity: positive=northward, eastward, downward
Moshiri (MSR or MOS), Japan : 44.37N, 142.27E
Fluxgate Magnetometer (May 24, 1990-)
1 Hz sampling
available on the 210MM database
Induction Magnetometer (July 14, 2007-)
64Hz sampling triggered by GPS clock signal
turnover frequency: 2.2 Hz (before Sept.10, 2007)
2.3-2.9Hz (after Sept.11, 2007)
sensitivity: 12.7 V/nT at 2.2 Hz before Sept.10, 2007
1.29 V/nT at 0.1 Hz before Sept.10, 2007
13.2 V/nT at 2.3-2.9 Hz after Sept.11, 2007
1.27 V/nT at 0.1 Hz after Sept.11, 2007
polarity: positive=southward, westward, upward
Rikubetsu (RIK) : 43.5N, 143.8E
Fluxgate Magnetometer (October 6, 1997-)
1 Hz sampling
available on the 210MM database
Induction Magnetometer (Oct.17, 2018-, two components only)
64Hz sampling triggered by GPS clock signal
turnover frequency: 1.4 Hz
sensitivity: 0.459 V/nT at 1.4 Hz
0.0228 V/nT at 0.1 Hz
polarity: positive=H: northward, D: eastward
ch.1: dH/dt, ch.2: dD/dt, ch.3: zero (shorted), ch.4: GPS-1pps
Kagoshima (KAG) : 31.48N, 130.72E
Fluxgate Magnetometer (July 21, 1990-September 29, 2023: TOKIN magnetometer, 746.7 nT/65536 digit)
(September 30, 2023-: YUTAKA magnetometer (725.8nT/65536 digit, A/D:+-5V=65536digit)
1 Hz sampling
available on the 210MM database
Sata (STA) : 31.0N, 130.7E
Induction Magnetometer (September 5, 2007-) (Jun.18-Sept.4, 2007 at KAG)
64Hz sampling triggered by GPS clock signal
September 5, 2007 - February 26, 2008
turnover frequency: 1.9 Hz
sensitivity: 0.291 V/nT at 1.9 Hz
0.0114 V/nT at 0.1 Hz
February 27, 2008 - November 23, 2019
turnover frequency: 2.5-2.6 Hz
sensitivity: 0.314 V/nT (at 2.5-2.6 Hz)
0.0142 V/nT (at 0.1 Hz)
polarity: positive=northward, eastward, downward
October 12, 2021-
turnover frequency: H:4.0Hz, D:3.8Hz)
H sensitivity: 0.503 V/nT (at 4.0 Hz)
0.0130 V/nT (at 0.1 Hz)
D sensitivity: 0.112 V/nT (at 3.8 Hz)
0.0099 V/nT (at 0.1 Hz)
polarity: positive=northward, eastward, downward
Kunigami (KNG), Japan : 26.7567N, 128.208E
Induction Magnetometer (October 23, 2021-)
64Hz sampling triggered by GPS clock signal
turnover frequency: 1.4 Hz (H, D)
sensitivity: 0.3986 V/nT at 1.4 Hz (H)
0.0230 V/nT at 0.1 Hz (H)
0.4070 V/nT at 1.4 Hz (D)
0.0223 V/nT at 0.1 Hz (D)
polarity: positive=northward, eastward
Muntinlupa (MUT), Philippine : 14.373N, 121.017E
Induction Magnetometer (June 14, 2023-)
64Hz sampling triggered by GPS clock signal
turnover frequency: 2.6 Hz (H, D)
sensitivity: 0.3156 V/nT at 2.6 Hz (H)
0.0146 V/nT at 0.1 Hz (H)
0.3113 V/nT at 2.6 Hz (D)
0.0147 V/nT at 0.1 Hz (D)
polarity: positive=northward, eastward
Kototabang (KTB) : 0.2S, 100.3E
Fluxgate Magnetometer (January 20, 2003-)
1 Hz sampling
available on the 210MM database
Middlemarch (MDM) : 45.60S, 170.09 E
Fluxgate Magnetometer (March 19, 2011-)
1 Hz sampling
Te Wharau (TEW) : 41.18S, 175.83 E
Fluxgate Magnetometer (April 2, 2012-)
1 Hz sampling
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Some Notes:
* At PTK, the induction magnetometer sensors were buried under the ground
on November 21, 2007. Before that, the sensors were left on the
ground for test observations.
* After December 1, 2007, the D-component at Sata is disconnected.
* H and D components of the fluxgate magnetometer at KAG (Kagoshima)
are short-circuited in the cable before the data recorder for
September 8, 2007 - January 28, 2009. Please do not use the
fluxgate magnetometer data at this interval.
* On Jan.21-Feb.18, 2009, and Mar.28-Apr.17, 2009, a radio tramsmitter
worked at Magadan at 4-28 MHz and the induction magnetometer data becomes
highly noisy.
* After Oct. 25, 2016, ATH magnetometer was moved from AUGO-I to AUGSO at
54.60N, 246.36E, and Z-component sensor was removed and replaced by the riometer
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Acknowledgements:
The ISEE magnetometers have been developed and operated with
skillful supports by Toshirou Kotoh, Mitsugi Satoh, Yasuo Katoh,
Yoshiyuki Hamaguchi, and Yuka Yamamoto, all are technical staff
of the Solar-Terrestrial Environment Laboratory (STEL) and
Institute for Space-Earth Environmnetal Research (ISEE), Nagoya University.
The magnetometers used at Moshiri, Kagoshima, and Sata were
initially introduced to STEL by Professor Kiyohumi Yumoto,
currently at the Space Environment Research Center (SERC),
Kyushu University. The installation of magnetometers at Magadan
and Paratunka has also been carried out in collaboration with SERC.
The magnetometer at Athabasca Canada, has been operated in collaboration with
the Athabasca University. We thank Professor Martin Connors, Dr. Ian
Shelton, and Dr. Ian Schofield, for their kind and helpful supports.
The magnetometer at Magadan and Paratunka, Russia, has been operated in collaboration
with the Institute of Cosmophysical Research and Radiowave Propagation
(IKIR), Far Eastern Branch of the Russian Academy of Sciences.
We thank Professor B. Shevtsov, the director of IKIR, and all the
staff of IKIR for their kind and helpful supports.
The magnetometers at Moshiri, Rikubetsu, Kagoshima, and Sata have been
operated in the ISEE observatory. We thank M. Sera, Y. Ikegami (Moshiri),
K. Hanano and N. Yokozeki (Rikubetsu), late K. Hidaka (Kagoshima and Sata),
all are the technical staff of STEL/ISEE for their kind and skillful support
at these sites.
The magnetometer at Kototabang, Indonesia, has been operated in collaboration
of the Research Institute for Sustainable Humanosphere (RISH), Kyoto
University, and the National Institute of Aeronautics and Space (LAPAN),
Indonesia. We thank all the local staff of the Kototabang site for
continuous operation of the magnetometer.
The magnetometer at Middlemarch and Te Wharau, New Zealand, has been
operated in collaboration with Osaka Electro-Communication University.
We thank Dr. Yuki Obana for her kind and helpful supports.
The magnetometer at Husafell, Iceland belongs to the National Institute
of Polar Research (NIPR), Japan, and is operated in collaboration with
NIPR and University of Iceland.
This observation and database construction have been supported by:
(a) Grant-in-Aid for Scientific Research (13573006, 18403011,
19403010) and on Priority Area (764), and by the 21th Century COE
Program (Dynamics of the Sun-Earth-Life Interactive System,
No. G-4) of the Ministry of Education, Culture, Sports, Science
and Technology of Japan,
(b) International CAWSES project, and
(c) Geospace Research Center of STEL.
(d) IUGONET Project