ocr: THE MISSION THE SOHO PAYLOAD CAN BE DIVIDED IN THREE SEGMENIS: The helioseismology payload consists of two velocity spectrometers (GOLF and MDI) and several radiometers (VIRGO). They provide dato for the study of the structure and dynamics of the solar interior, from the very deep core to the outmost layers. They can measure the velocity and intensity of solar oscillations, investigate non peri- odic variations of the 'solar constant, and defermine its value. The coronal payload consists of several remofe-sensing instruments (CDS, EIT, LASCO,SUMER, UVCS) which are designed to study the structu ...