PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM SPACECRAFT_NAME = "MARS GLOBAL SURVEYOR" TARGET_NAME = "MARS" OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2000-04-01 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 stored on the CD. There are two tables ('imgindex.tab' and 'wago.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 ("). imgindex.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 information in the table includes the file name, camera, image width and height, resolution, pixel aspect ratio, emission, incidence, and phase angles, the longitude and latitude coordinates of the center and four corners of the image, and a short description of the target. The imgindex.tab file applies to all images found in the CD volume set. imgindex.lbl - This PDS label file contains a detailed description of the image index table ('imgindex.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 MOC volumes, in the same format. wago.tab - time ordered table with each row containing information about a change in the wide angle (WA) gain and/or offset. wago.lbl - This PDS label file contains a detailed description of the wide angle gain offset table ('wago.tab').