PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2018-10-19 NOTE = "N/A" END_OBJECT = TEXT END Dawn SPC Ceres Shape Model (DAWN-A-FC2-5-CERESSHAPESPC-V1.0) AAREADME.TXT 2018-04-25 Dustin Buccino Jet Propulsion Laboratory ============================================================================= INTRODUCTION ============================================================================= This archive contains the Ceres SPC shape model produced using data collected by the Dawn spacecraft while in orbit around Ceres. The shape model was derived from data from the Framing Camera (FC2). ============================================================================= ARCHIVE INFORMATION ============================================================================= This archive has the structure illustrated in the diagram below. The archive includes the shape model data set plus files (AAREADME.TXT, ERRATA.TXT, and VOLDESC.CAT) and directories (CATALOG, DOCUMENT, and INDEX) which are normally associated with PDS volumes. The primary data type for this archive is the shape model in Implicitly Connected Quadrilateral (ICQ) format. SPICE Digital Shape Kernel (DSK) formatted shape models are archived on the Navigation and Ancillary Information Facility (NAIF) website at: naif.jpl.nasa.gov/pub/naif/pds/data/dawn-m_a-spice-6-v1.0/ The CATALOG directory contains summary information on the Dawn mission, the spacecraft, instrumentation, the data set, and listings of references and personnel. These files are structured to facilitate machine handling but are also intended to be human readable. The diagram below shows the organization of this archive, starting from the root. |===================================================================| | | | Shape Model Archive Directory Structure for Dawn | | | |===================================================================| | | | root | | | | | |- AAREADME.TXT | | |- ERRATA.TXT | | |- VOLDESC.CAT | | | | | |- [CATALOG] | | | |- CATINFO.TXT | | | |- dawnmission.cat | | | |- dawninsthost.cat | | | |- fc2_instrument.cat | | | |- REF.CAT | | | |- PERSON.CAT | | | `- DATASET.CAT | | | | | |- [DOCUMENT] | | | |- DOCINFO.TXT | | | `- ... | | | | | |- [GEOMETRY] | | | |- GEOMINFO.TXT | | | `- ... | | | | | |- [INDEX] | | | |- INDXINFO.TXT | | | |- INDEX.LBL | | | `- INDEX.TAB | | | | | |- [DATA] | | | `- [ICQ] | | | |===================================================================| ============================================================================= ERRATA ============================================================================= A cumulative list of errors, changes, and comments is maintained in the ERRATA.TXT file. ============================================================================= DISC FORMAT ============================================================================= The archive is organized according to the PDS standard for "one data set, one volume." This file (AAREADME.TXT), a PDS volume object definition (VOLDESC.CAT), and the listing of errors and changes (ERRATA.TXT) are included at the root level. The following directories of descriptive material are also at the root level: CATALOG contains descriptive files for cataloging the data in this archive. DOCUMENT contains a plain text Software Interface Specification (SIS) for the data types that do not have a full PDS label as well as other documents which may be useful in manipulating and understanding the data. INDEX contains index information on each of the data files included in this archive. ============================================================================= FILE FORMAT ============================================================================= All data files in the archive are accompanied by detached or attached PDS labels, which describe their contents. Files in the DATA/ICQ directory are ASCII. Detached labels have the same file name as the data file except that the label file name has the suffix ".LBL". Detached labels are ASCII files. Detailed documentation on file structure, formatting, and content is available for all file types either through complete PDS labels or through Software Interface Specifications (SISs) in the DOCUMENT directory. Text files (*.TXT file names) and catalog files (*.CAT file names) are stream files. ============================================================================= SOFTWARE ============================================================================= No software has been included with this archive. ============================================================================= COGNIZANT PERSONNEL ============================================================================= Ryan Park Gravity Science Analyst Jet Propulsion Laboratory 4800 Oak Grove Drive M/S: 301-121 Pasadena, CA 91109-8099 Tel: 818-354-4401 FAX: 818-394-5904 Ryan.S.Park@jpl.nasa.gov Dustin Buccino Radio Science Analyst Jet Propulsion Laboratory 4800 Oak Grove Drive M/S: 230-215 Pasadena, CA 91109-8099 Tel: 818-393-1072 FAX: 818-393-9282 Dustin.R.Buccino@jpl.nasa.gov ============================================================================= ACRONYMS AND ABBREVIATIONS ============================================================================= ASCII American Standard Code for Information Interchange DSK Digital Shape Kernel DTM Digital Terran Map ICQ Implicitly Connected Quadrilateral JPL Jet Propulsion Laboratory NAIF Navigation Ancillary Information Facility NASA National Aeronautics and Space Administration PDS Planetary Data System SIS Software Interface Specification SPC Stereo-photoclinometry