PDS_VERSION_ID = PDS3 LABEL_REVISION_NOTE = "2007-04-06, K. Supulver; 2007-10-31, K. Supulver" RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2007-05-25 NOTE = "Description of contents in the INDEX subdirectory." END_OBJECT = TEXT END Content description of INDEX directory The index directory on this volume contains information about the data products. There are three tables ('index.tab', 'cumindex.tab', and 'varexp.tab') in this directory. The tabular files are designed for easy ingestion into most Data Base Management Systems. Fields are separated by comma delimiters and string fields are enclosed in double quote characters ("). index.tab - The image index is organized as a table with each row containing information about a data product (image file) and each column an attribute of the data product. The index.tab file applies to all images found in the volume set. index.lbl - This PDS label file contains a detailed description of the image index table ('index.tab'). It can be accessed and viewed with an editor so that a user can determine the contents and organization of the table or it can be used with PDS tools to access the table. Refer to this file for detailed information and format of the image index table. cumindex.tab, cumindex.lbl - the same information gathered cumulatively from all MARCI volumes, in the same format. varexp.tab - This table contains information about MARCI images with exposure times that varied during image acquisition. index.tab lists the exposure time of the first frame for every MARCI image; if an image is also listed in varexp.tab, then the exposure time was changed starting with the given frame (0-based) to the given exposure time. The table contains one line per exposure time change for visible-band images; the corresponding UV exposure time changes can be calculated using the formula in varexp.lbl. varexp.lbl - This PDS label file contains a detailed description of the variable exposure table ('varexp.tab').