The YOHKOH satellite, also called "Sunbeam" was launched into
space from the Kagoshima Space Center (KSC) in Southern
Japan. This is a project of the Japanese Institute of Space and
Astronautical
... Science (ISAS). The scientific objective has been
to observe the energetic phenomena taking place on the Sun,
specifically solar flares in x-ray and gamma-ray emissions.
Instruments on the satellite:
the Bragg Crystal Spectrometer (BCS)
the Wide Band Spectrometer (WBS)
the Soft X-Ray Telescope (SXT)
the Hard X-Ray Telescope (HXT)
Additional information available at
http://hesperia.gsfc.nasa.gov/sftheory/yohkoh.htm
[Summary provided by NASA]