2.3.0 spase://SMWG/Service/CCMC/IRI/Model International Reference Ionosphere Model 2019-05-05T12:34:56Z International Reference Ionosphere (IRI) empirical model spase://SMWG/Person/Dieter.K.Bilitza GeneralContact About the IRI https://ccmc.gsfc.nasa.gov/modelweb/ionos/iri.html spase://VSPO/Service/P_IRI_HDR spase://VSPO/Service/IRI/Model Access to files from the International Reference Ionosphere project website http://irimodel.org