2.2.2 spase://NASA/DisplayData/POLAR/VIS/UIOWA Polar VIS Images from U. Iowa 2020-07-07T19:48:35Z Polar VIS Images to near current from U. Iowa spase://SMWG/Person/Louis.A.Frank PrincipalInvestigator spase://VSPO/DisplayData/P_POLAR_HDR_VIS_UIOWA spase://VSPO/DisplayData/POLAR/VIS/UIOWA spase://SMWG/Repository/UIowa/ParticlesImagingGroup Online Open U. Iowa site http://vis.physics.uiowa.edu/vis/images/ GIF CALIBRATED spase://SMWG/Instrument/POLAR/VIS ImageIntensity 1996-06-17T00:00:00 2008-04-16T00:00:00 Optical PT54S Earth.Magnetosphere Earth.NearSurface.Ionosphere