SOHO is made up of two modules. The Service Module forms the lower portion of the spacecraft and provides power, thermal control, pointing and telecommunications for the whole spacecraft and support for the solar panels. The Payload Module sits above it and houses all the scientific instruments.
Click here for an MPEG animation showing a rotating SOHO spacecraft, displaying the location of the instruments and external subsystems.
Click here for an MPEG animation showing the deployment of SOHO's solar panels.
DIMENSIONS breadth and width ............... 3.65 x 3.65 m solar array deployed .................... 9.5 m MASS total at launch ....................... 1850 kg payload ................................ 610 kg