2.2.2 spase://NASA/NumericalData/Alouette2/CEP/PT60S Alouette 2 electron density data 2020-07-07T21:14:17Z Alouette 2 ionospheric electron density data at 1-5 min resolution spase://SMWG/Person/Dieter.K.Bilitza GeneralContact spase://VSPO/NumericalData/P_ALOUETTE2_HDR_NE spase://VSPO/NumericalData/Alouette2/CEP/PT60S spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPBrowser https://omniweb.gsfc.nasa.gov/ftpbrowser/alouette2.html FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/alouette/plasma_lp/ HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/alouette/plasma_lp/ In CDF via HTTP from SPDF Text CALIBRATED spase://SMWG/Instrument/Alouette2/CEP ThermalPlasma 1966-02-21T00:00:00 1967-02-16T00:00:00 PT60S Earth.NearSurface.Ionosphere