2.7.1 spase://NASA/Catalog/YOHKOH/Flare Yohkoh Flare Catalogue(HXT/SXT/SXS/HXS) 2026-06-13T17:35:57 This event list contains all solar flares recorded with Yohkoh HXT, SXT, SXS and HXS during the interval between October 1, 1991 and December 14, 2001. In the Yohkoh operation, the observation mode is automatically controlled by the onboard Data Processor, and intense flares trigger the so-called Flare mode. Weak flares, however, are recorded in the Quiet mode without triggering the Flare mode. spase://SMWG/Person/Jun.Sato Author spase://SMWG/Person/Kazuo.Yoshimura Author spase://SMWG/Person/Olga.Y.Uritskaya MetadataContact spase://SMWG/Repository/SDAC https://umbra.nascom.nasa.gov/yohkoh/HXT_catalog/image_html/all_images.html HTML spase://SMWG/Instrument/Yohkoh/HXT spase://SMWG/Instrument/Yohkoh/SXT spase://SMWG/Instrument/Yohkoh/WBS SolarFlare 1991-10-01T14:24:30 2001-12-14T20:46:01 EVENT Housekeeping DATE Temporal START Temporal MAX Temporal END Temporal HXT-X Flare position from solar disk center in arcseconds; East-West. Positional HXT-Y Flare position from solar disk center in arcseconds; North-South, with West and North positive, respectively. Positional L L-band peak count rate in cts/s/SC (with background of ∼ 2 cts/s/SC) Other M1 M1-band peak count rate in cts/s/SC (with background of ∼ 1 cts/s/SC) Other M2 M2-band peak count rate in cts/s/SC (with background of ∼ 1 cts/s/SC) Other H H-band peak count rate in cts/s/SC (with background of ∼ 9 cts/s/SC) Other SXS21 Other SXS22 Other HXS1 Other HXS2 Other GOES GOES X-ray class Other H H-alpha flare importance Other H-alpha H-alpha flare location in solar coordinates Positional NOAA NOAA active region number Other