PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM LABEL_REVISION_NOTE = "MESS:mick V0 2007-12-18" OBJECT = TARGET TARGET_NAME = "CAL_TARGET" OBJECT = TARGET_INFORMATION TARGET_TYPE = "CALIBRATION" PRIMARY_BODY_NAME = "N/A" ORBIT_DIRECTION = "N/A" ROTATION_DIRECTION = "N/A" TARGET_DESC = " A spectralon calibration target mounted on the inside of the MESSENGER payload adapter ring. The spacecraft may be tilted in order to provide solar illumination of the target. The large range of motion of the pivot assembly enables either the MDIS-NAC or MDIS-WAC to point at the target, permitting an absolute in-flight radiometric calibration and flat-field measurement." END_OBJECT = TARGET_INFORMATION END_OBJECT = TARGET END