sentences:  Spacecraft data processing was performed using a MIL-STD-1750A computer (1.7 MIPS) for savemode, attitude control, and housekeeping operations, a RISC 32-bit processor (18 MIPS) for image processing and autonomous operations, and an image compression system provided by the French Space Agency CNES.A data handling unit sequenced the cameras, operated the image compression system, and directed the data flow.Data was stored in a 2 Gbit dynamic solid state data recorder.