after June 1992 was 24 keV–830 keV. It was divided into 2 PC channels and 32 PH channels. Gamma-ray Spectrometer (GRS) consisted of two identical bismuth germanate oxide scintillators. It covered energy range 0.3 MeV–100 MeV, which was divided into 6 PC channels and 128+16 PH channels. Radiation Belt Monitor (RBM) unlike the other three was not aimed at solar flare observations and served to sound the alarm for radiation belt passage. References External links JAXA/ISAS overview of mission, at the Wayback Machine JAXA/ISAS Yohkoh legacy home page (Japanese) JAXA/ISAS Yohkoh legacy home page (English) SXT project page SXT observation images Encyclopædia Britannica, Yohkoh HXT project page NASA/NSSDC information on Yohkoh U.S.-European-Japanese Workshop on Space Cooperation: Summary Report, 1999 Yohkoh Science Nuggets 1991 in spaceflight Satellites formerly orbiting Earth Satellites of Japan Solar telescopes Space telescopes X-ray telescopes Spacecraft which reentered in 2005 1991 in Japan