2.3.0 spase://GBO/NumericalData/Indices/AE/PT1M AE, AL and AU indices 2018-08-01T17:53:31Z AE, AL, AU and AO geomagnetic indices. The web site of WDC for Geomagnetism at Kyoto U., url given below, offers plots and numeric downloads for 1-minute and 1-hour AE and related indices. Hourly data are available from July, 1957, through near-current, except for 1976, 1977, and July 1988 through Dec 1989. One-minute values are available from 1975 forward, with the same coverage gaps as for hourly data. AL, AU, and AO data start being available in 1966. The data are currently (as of 12/07/2011) "final" through June, 1988, and "provisional" through September, 2011. "Real time" data are available thereafter through another of the interfaces available through the WDC interface given below. Yet another such interface provides 2.5 min AE values for 1966-1974. Alternative sources of many of the WDC/Kyoto-generated AE and related indices include the 1-min and 1-hour OMNI data sets at NASA/GSFC/SPDF. WDC for Geomagnetism (Kyoto-U., Japan) spase://SMWG/Person/Toshihiko.Iyemori GeneralContact spase://VSPO/NumericalData/AE_Indices spase://VSPO/NumericalData/WDC/Indices/AE/PT1M spase://SMWG/Repository/WDC/Geomagnetism/KyotoU Online Open WDC for Geomagnetism at Kyoto U. http://wdc.kugi.kyoto-u.ac.jp/aedir/index.html Multi-option path to AE and related indices at Kyoto, including index documentation and history files. Text spase://SMWG/Repository/NASA/GSFC/SPDF Online Open OMNIWeb https://omniweb.gsfc.nasa.gov/ Path to both 1-min and 1-hour OMNI data sets, with subset/plot/list functionalities, and to ftp accessibility. Text Calibrated MagneticField ActivityIndex 1957-07-01T00:00:00 -P1D Hourly data start in 1957, 1-min data in 1975. Most recent (real time) data are current to within hours. PT1M Earth.Surface