PHOENIX MARS MECA OPTICAL MICROSCOPE 3 
                                    RADIOMETRIC SCI V1.0
The Microscopy, Electrochemistry, and  Conductivity Analyzer (MECA) experiment on the Mars Phoenix Lander  consists of four instrument components plus command electronics. This  MECA Imaging Science RDR data set contains data from one of the four  MECA components, the Optical Microscope (OM).