{"HAPI":"3.3.1","status":{"code":1200,"message":"OK"},"startDate":"1956-01-01T00:00:00.000Z","stopDate":"1984-01-01T00:00:00.000Z","cadence":"PT7.5S","timeStampLocation":"center","modificationDate":"2026-08-31T04:56:04Z","maxRequestDuration":"P31D","title":"Kakioka Observatory (Best Available, 7.5-second)","description":"Kakioka (KAK) 7.5-second geomagnetic field, served as the components natively reported in the source. Timestamps are bin centers (timeStampLocation=center). Best available version per period.","licenseURL":"https://wdc.kugi.kyoto-u.ac.jp/wdc/Sec3.html","x_observatory":{"name":"Kakioka","iagaCode":"KAK","latitude":36.232,"longitude":140.186,"elevation":36,"country":"Japan"},"x_sourceMetadata":[{"startDate":"1956-01-01T00:00:00.000Z","stopDate":"1984-01-01T00:00:00.000Z","sourceOfData":"Japan Meteorological Agency","sensorOrientation":"variation:DHZ, absolute:DIF","digitalSampling":"7.62 second","dataIntervalType":"7.5-second (interpolation)","dataType":"quasi-definitive"}],"x_sourceComments":[{"startDate":"1956-01-01T00:00:00.000Z","stopDate":"1962-11-01T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html"]},{"startDate":"1962-11-01T00:00:00.000Z","stopDate":"1962-11-02T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html"," D :  Secondary variometers are used from 00:00:00.0 to 02:09:52.5"," H :  Secondary variometers are used from 00:00:00.0 to 02:09:52.5"," Z :  Secondary variometers are used from 00:00:00.0 to 02:09:52.5"," Last update          2018-04-24"]},{"startDate":"1962-11-02T00:00:00.000Z","stopDate":"1962-11-21T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html"]},{"startDate":"1962-11-21T00:00:00.000Z","stopDate":"1962-11-23T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html"," D :  Secondary variometers are used from 00:00:00.0 to 23:59:52.5"," H :  Secondary variometers are used from 00:00:00.0 to 23:59:52.5"," Z :  Secondary variometers are used from 00:00:00.0 to 23:59:52.5"," Last update          2018-04-24"]},{"startDate":"1962-11-23T00:00:00.000Z","stopDate":"1962-11-24T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html","","",""," Last update          2016-03-25"]},{"startDate":"1962-11-24T00:00:00.000Z","stopDate":"1962-11-25T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html"," D :  Secondary variometers are used from 00:00:00.0 to 03:09:52.5"," H :  Secondary variometers are used from 00:00:00.0 to 03:09:52.5"," Z :  Secondary variometers are used from 00:00:00.0 to 03:09:52.5"," Last update          2018-04-24"]},{"startDate":"1962-11-25T00:00:00.000Z","stopDate":"1963-05-09T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html"]},{"startDate":"1963-05-09T00:00:00.000Z","stopDate":"1984-01-01T00:00:00.000Z","comments":[" Element              Geomagnetic field digitized from magnetograms"," Units: D(eastward+)[arc minute], H[nT], Z(downward+)[nT], F[nT]"," Accuracy: 0.2nT ( 0.02 arc minute)"," X=H*cos(D*pi/180/60) [nT],Y=H*sin(D*pi/180/60) [nT],"," I=arctan(Z/H)*60*180/pi [arc minute]"," When a trace is overlapped with a baseline, 99999 may be embedded."," Issued by Kakioka Magnetic Observatory,Japan Meteorological Agency"," URL:http://www.kakioka-jma.go.jp/en/index.html"]}],"x_unreportedElements":[{"startDate":"1956-01-01T00:00:00.000Z","stopDate":"1984-01-01T00:00:00.000Z","elements":"F"}],"parameters":[{"name":"Time","type":"isotime","units":"UTC","fill":null,"length":24,"label":"Time"},{"name":"geomagneticFieldD","type":"double","units":"arcmin","fill":"99999.0","label":"D","description":"Geomagnetic declination (eastward+), minutes of arc. Native when reported (horizontal reported as D,H); else fill."},{"name":"geomagneticFieldH","type":"double","units":"nT","fill":"99999.0","label":"H","description":"Geomagnetic horizontal intensity. Native when reported; else fill."},{"name":"geomagneticFieldX","type":"double","units":"nT","fill":"99999.0","label":"X","description":"Geomagnetic north component. Native when reported (horizontal reported as X,Y); else fill. Not derived from H,D."},{"name":"geomagneticFieldY","type":"double","units":"nT","fill":"99999.0","label":"Y","description":"Geomagnetic east component. Native when reported; else fill. Not derived from H,D."},{"name":"geomagneticFieldZ","type":"double","units":"nT","fill":"99999.0","label":"Z","description":"Geomagnetic vertical (downward+) component."},{"name":"geomagneticFieldF","type":"double","units":"nT","fill":"99999.0","label":"F","description":"Total field intensity, measured by an instrument independent of the vector components. Element letter F in the IAGA2002/WDC native output. Fill when the source reports no total field. Note that fill covers two distinct cases the source writes differently (99999 = measured but missing, 88888 = not observed at all); see x_unreportedElements for the periods in which an element was not observed."},{"name":"geomagneticFieldI","type":"double","units":"arcmin","fill":"99999.0","label":"I","description":"Geomagnetic inclination, minutes of arc. Reserved column: native only when reported; otherwise fill."},{"name":"versionCode","type":"integer","units":null,"fill":null,"label":"Version Code","description":"Processing status code Mm following IAGA2002 Data Type (M: 0=variation, 1=provisional, 2=quasi-definitive, 3=definitive; m=minor, the recalculation generation within the same major: 0=first conversion, 1 and above=reconverted after the source changed)."}]}