ocr: THE MISSION The information from the SOHO spacecraft is controlled in NASAS Goddard Space Flight Center near Washington DC, where the satellite's scientific data is gathered via the three ground stations of NASA'S Deep Space Network (DSN) system. The overall re- sponsibility for the spacecraft and its operations belongs to ESA. SOHO has a robotic control system, which allows it to look after itself up to48 hours. An onboard computer controls the orientation of the spacecratt relative to the Sun, using a fine-pointing sun sen- sor and star-tracking system, and three reaction wheels which keep i ...
