{"HAPI":"3.3.1","status":{"code":1200,"message":"OK"},"startDate":"1957-01-01T00:29:30Z","stopDate":"2026-09-14T19:00:00Z","cadence":"PT1H","timeStampLocation":"center","modificationDate":"2026-09-14T18:00:12Z","title":"Dst Index (Best Available, 1-hour)","description":"Dst index (hourly): a measure of the axially symmetric ring current disturbance field, derived from H-component variations at four low-latitude observatories. Provided by WDC for Geomagnetism, Kyoto. Best Available version: for each period the file with the highest processing level (Final > Provisional > Real-time) is served. Values are hourly means; timestamps are bin centers (timeStampLocation=center, HH:29:30).","resourceID":"doi:10.17593/14515-74000","datasetCitation":"World Data Center for Geomagnetism, Kyoto, M. Nose, T. Iyemori, M. Sugiura, T. Kamei, A. Matsuoka, S. Imajo, and T. Kotani (2015), Geomagnetic Dst index, doi:10.17593/14515-74000","licenseURL":"https://wdc.kugi.kyoto-u.ac.jp/wdc/Sec3.html","parameters":[{"name":"Time","type":"isotime","units":"UTC","fill":null,"length":24,"label":"Time"},{"name":"dstValue","type":"integer","units":"nT","fill":"99999","label":"Dst","description":"Dst index value."},{"name":"versionCode","type":"integer","units":null,"fill":null,"label":"Version Code","description":"Processing status code Mm (M: 0=real-time,1=provisional,2=final; m=minor, the recalculation generation within the same major: 0=first conversion, 1 and above=reconverted after the source changed)."}]}