2.5.0 spase://IUGONET/NumericalData/KwasanHidaObs/Pr_heliogram_0 Ca II K full-disk spectroheliograms of prominences with photographic plates (level 0) 2016-08-31T11:14:00 Full-disk solar chromospheric spectroheliograms of prominences around Ca II K absorption line obtained with the Coelostat spectroheliograph and photographic plates at Kwasan Observatory and Ikoma Observatory. Though these data-files were all digitized from analogue data, they are not performed any corrections nor calibrations. Therefore, they are not open on the web. If you want to investigate these non-calibrated data, please contact the person in charge. spase://IUGONET/Person/person_general GeneralContact http://www.iugonet.org/meetings/2012-02-22_23/4_2_kitai.pdf These data are not open on the web. If you want to investigate these non-calibrated data, please contact the person in charge. TIFF spase://IUGONET/Instrument/KwasanHidaObs/inst_askania ImageIntensity 1926-10-01T00:00:00 1969-08-31T23:59:59 CaK Sun.Chromosphere Spherical HEEQ +90 -90 -90 +90 Reference: FullDisk Sun, Chromosphere, Ca II K, prominence, filament, solar flare