RECORD_TYPE = "STREAM" OBJECT = TEXT NOTE = " AAREADME file for the Deep Impact MRI Reduced Image Archive of the 9P/Tempel 1 Encounter" PUBLICATION_DATE = 2005-12-31 END_OBJECT = TEXT END Introduction ============ This volume contains reduced images of comet 9P/Tempel 1 acquired by the Deep Impact Medium Resolution Visible CCD Camera (MRI) during the 9P encounter phase of the mission. These data were collected from May 1 through July 9, 2005. Volume Format ============= This volume has been formatted according to the ISO-9660 level 2 Interchange Standard. 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 | |--[BROWSE] Directory of thumbnails and JPEGs representing | | the data products | |-- BROWINFO.TXT Description of files in this directory | |-- BROWSE.HTM/LBL Browse facility implemented as a website | |-- [YYYY_DOY] Daily directories of thumbnails and JPEGs images | |--[CALIB] Directory containing calibration files | | | |-- CALINFO.TXT Description of files in this subdirectory | |-- [ABSCALVS] Absolute calibration constant tables | |-- [ADCLUT] Uneven ADC bit weighting lookup tables | |-- [BADPIX] Bad pixel maps | |-- [BIAS] Bias corrections maps | |-- [DECMPRS] Decompression lossy lookup tables | |-- [DRKMODEL] Master dark frames | |-- [FILTERS] Filter transmission tables | |-- [FLAT] Flat fields | |-- [GAIN] Gain correction maps | |-- [PSF] Point-spread function maps | |-- [XTALK] Electronic cross talk correction tables | |--[CATALOG] Directory containing PDS catalog objects | | | |-- CATINFO.TXT Description of files in this subdirectory | |-- DATASET.CAT Description of this data set | |-- MRI.CAT Description of the MRI instrument | |-- DIF.CAT Description of the Flyby spacecraft | |-- DEEP_IMPACT.CAT Description of the Deep Impact mission | |-- 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 data products | | | |--[RADREV] Reduced spectra in units of radiance, reversible | | | |--[YYYY] Multiple year directories, as needed | | | +--[DDD] Multiple day-of-year directories | | | |-- *.FIT Two-dimensional, spectral image FITS files | |-- *.LBL PDS labels, one for each FITS file | |--[DOCUMENT] Directory for related documents | | | |-- DOCINFO.TXT Refers the user to relevant documents | |-- PDSDD_DI.* Deep Impact local data dictionary and index file | |-- NEW_KEYWORDS.TXT Defines keywords submitted for inclusion in the | PDS data dictionary | +--[INDEX] Directory containing index files | |-- INDXINFO.TXT Description of files in the INDEX directory |-- INDEX.TAB Table of all FITS data files in this data set |-- INDEX.LBL PDS label for INDEX.TAB |-- CHECKSUM.TAB Checksum file for this volume |-- CHECKSUM.LBL PDS label for CHECKSUM.TAB Whom to Contact for Information =============================== Questions regarding the scientific elements of this data set should be directed to: Michael F. A'Hearn Principle Investigator, Deep Impact Department of Astronomy, University of Maryland College Park, Maryland 20742-2421 USA ma@astro.umd.edu Kenneth P. Klaasen Sequencing and Calibration Lead, Deep Impact Jet Propulsion Laboratory 4800 Oak Grove Drive Pasadena, CA 91109 USA kenneth.p.klaasen@jpl.nasa.gov Questions about data formats and geometry-related information should be directed to: Brian Carcich Deep Impact Science Data Center Cornell University 610 Space Sciences Building Ithaca, NY 14853 USA carcich@astro.cornell.edu Questions regarding the PDS elements in this data set should be directed to: Stephanie McLaughlin Deep Impact Archive Team Department of Astronomy, University of Maryland College Park, Maryland 20742-2421 USA stefmcl@astro.umd.edu