PDS_VERSION_ID = PDS3 RECORD_TYPE = "STREAM" OBJECT = TEXT PUBLICATION_DATE = 2013-01-05 NOTE = "/CATALOG/ directory information" END_OBJECT = TEXT END /CATALOG/ Directory The files in this /CATALOG/ directory contain fundamental high-level information about this Hartley 2 shape model data set. Prior to using and understanding any data from this data set, at a minimum the following catalog files must be read: DIF.CAT - DI spacecraft HRI.CAT - instrument MRI.CAT - instrument EPOXI.CAT - DI extended mission DATASET.CAT - data The order given above is in generally increasing specificity of the information with respect to this data set, but the order is less important than that all of those files be read. The files are in 7-bit ASCII format, with carriage-return and linefeed line termination, and so may be read with a text editor or browser on most computers. There will also be other documents, referred to in those catalog files and/or in the /DOCUMENT/ directory (see /DOCUMENT/DOCINFO.TXT), which are also part of the essential reading necessary to understand and use these data. Further information may be found via the references in REF_EPOXI.CAT and the people in PERSONNEL.CAT. /CATALOG/ Directory Contents The CATALOG directory contains high-level catalog objects for this Hartley 2 shape model data set. Catalog objects are often updated as more precise information becomes available. For the latest versions of these files, please consult the Planetary Data System Data Set Catalog available on the PDS web site at: http://pds.jpl.nasa.gov/ The following files are found in this directory: CATINFO.TXT - This file EPOXI.CAT - High-level catalog object for the DI extended mission DIF.CAT - High-level catalog object for the DI Flyby spacecraft HRIV.CAT - High-level catalog object for the High Resolution Visible Imager (HRIV) Instrument MRI.CAT - High-level catalog object for the Medium Resolution Imager (MRI) Instrument DATASET.CAT - High-level catalog object for this data set REF_EPOXI.CAT - Bibliographic citations for reference works cited in the Deep Impact catalog objects PERSONNEL.CAT - High-level catalog object for personnel responsible for the production and distribution of the data sets for the Deep Impact Shape model datasets