PDS_VERSION_ID = PDS3 RECORD_TYPE = "STREAM" OBJECT = TEXT NOTE = "AAREADME file for the Deep Impact approach photometry of comet 9P/Tempel 1." PUBLICATION_DATE = 2008-06-13 /* Review Data */ END_OBJECT = TEXT END Introduction ============ This data set contains photometric measurements of comet 9P/Tempel 1 from images taken with the Medium Resolution CCD Instrument during the approach phase of the Deep Impact mission (from 1 May 2005 to 4 July 2005). These data, based on circular apertures ranging from 5 to 30 pixels in diameter, were derived from both science and navigation images taken through clear filters. Volume Format ============= This volume has been formatted according to the ISO-9660 level 2 Interchange Standard for directories and file names. File Formats ============ All text documents and other meta information files such as descriptions, PDS object definitions, and detached PDS labels are stream format files, with a carriage return (ASCII 13) and a line feed character (ASCII 10) at the end of the record. This allows the files to be read by various operating systems. Volume Contents =============== Files on this volume are organized into a set of subdirectories below the top-level directory. The following table shows the structure and content of these directories. In the table, directory names are enclosed in square brackets ([]). See the *INFO.TXT files in some directories for specific information on the files in that directory. [TOP-LEVEL-DIRECTORY] | |-- AAREADME.TXT This file | |-- VOLDESC.CAT Description of the contents of this volume | |--[CATALOG] Directory containing PDS catalog objects | | | |-- CATINFO.TXT Description of files in this directory | |-- DATASET.CAT Description of this data set | |-- DIF.CAT Description of the flyby spacecraft | |-- DEEP_IMPACT.CAT Description of the Deep Impact mission | |-- MRI.CAT Description of the Medium Res. instrument (MRI) | |-- PERSONNEL.CAT Description of personnel who created this volume | |-- REFERENCE.CAT List of publications mentioned in catalog files | +-- 9P_TEMPEL_1_1867_G1.CAT Description of mission target, 9P/Tempel 1 | |--[DATA] Directory containing the Tempel 1 photometry | | | |-- NAV_PHOT.TAB Photometry derived from navigation images | |-- SCI_PHOT.TAB Photometry derived from science images | +-- *.LBL PDS labels for the data tables in this directory | |--[DOCUMENT] Directory containing related documents | | | |-- DOCINFO.TXT Description of files in this directory | |-- NAV_IMAGES_REPORT.* Deep Impact Navigation Images Report | |-- PHOTOMETRY_REPORT.* Deep Impact MRI Photometry Report | |-- SCI_IMAGES_CALIB* Deep Impact (Science) Calibration Pipeline | +-- *.LBL PDS labels for the reports in this directory | +--[INDEX] Directory containing index files | |-- INDXINFO.TXT Description of files in this directory |-- INDEX.TAB Index of data files on this volume |-- INDEX.LBL PDS label for INDEX.TAB file |-- CHECKSUM.TAB MD5 Checksum file for files on this volume +-- CHECKSUM.LBL PDS label for CHECKSUM.TAB Whom to Contact for Information =============================== Generation of Photometry Tables: Fabienne Bastien Department of Astronomy, University of Maryland College Park, Maryland 20742-2421 USA fbastien at astro.umd.edu Michael A'Hearn Department of Astronomy, University of Maryland College Park, Maryland 20742-2421 USA ma at astro.umd.edu Preparation for PDS (SBN): Stephanie McLaughlin and Fabienne Bastien Department of Astronomy, University of Maryland College Park, Maryland 20742-2421 USA stefmcl at astro.umd.edu fbastien at astro.umd.edu