WDC - Geomagnetism, Kyoto is operated by the Data Analysis Center for Geomagnetism and Space Magnetism, Graduate School of Science, Kyoto University. Data held by the WDC include: Normalrun magnetograms, rapidrun magnetograms, geomagnetic hourly values, normalrun tellurigrams, rapidrun tellurigrams, Earth current hourly values, geomagnetic indices and lists of special events. Digital data on disk array system and CD-ROMs, including geomagnetic hourly, 1 minute and 1 sec values and geomagnetic indices.