The Yohkoh spacecraft has four instruments: a Bragg Crystal
Spectrometer (BCS), a Hard X-ray Telescope (HXT), a Soft X-ray Telescope
(SXT), and a Wide Band Spectormeter (WBS).
This combination of hard and soft x-ray imaging from the telescopes and
spectroscopy instruments operating simultaneously, in coordination,
makes the Yohkoh satellite unique and powerful tool for studying the Sun.
These four instruments cover a wide energy range of the high energy
solar spectrum and are extremely useful for studying
solar flares which is Yohkoh's primary objective.
|Yohkoh Satellite with the positions
of the apertures to the four instruments indicated. Note that the WBS has three
apertures: soft x-ray, hard x-ray, and gamma ray.