PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2015-09-14 NOTE = "Description of contents in the GEOMETRY directory" END_OBJECT = TEXT END Content description of the GEOMETRY Subdirectory The GEOMETRY directory contains one or more additional CK Spice kernels describing the M-scanning mirror positions for each sub-session. The number of CK Spice kernels depends on the data-set. These files are generated by the team from TM information, they are used to compute the geometry cubes. The motion of the scanning mirror is described in the EAICD, section 2.2.1. Each CK encompasses a complete MTP period. The file names have the following format: ROS_VIRTIS_YYMMDD_yymmdd_VV.BC where YYMMDD is the start date yymmdd is the stop date VV is a version number, starting from 01 These files are generated with no time interval tables (Spice option INCLUDE_INTERVAL_TABLE = 'NO') Each file has a detached label. The geometry files are computed for each session using kernels which are listed in their labels. They are stored in the data directories.