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voldesc.cat 09-Dec-2012 20:13 4.2K [PDS catalog file]
PDS_VERSION_ID = PDS3
RECORD_TYPE = "STREAM"
OBJECT = TEXT
NOTE = "
AAREADME file for the EPOXI MRI
(Medium Resolution Visible CCD)
Earth Observations Calibrated Data Archive.
"
PUBLICATION_DATE = 2012-12-31
END_OBJECT = TEXT
END
Introduction
============
This dataset contains calibrated, 750-nm filter images of Earth
acquired by the Deep Impact Medium Resolution Visible CCD (MRI)
during the EPOCh and Cruise 2 phases of the EPOXI mission. The MRI
instrument was only used during the first Earth observing period on
18-19 March 2008 and the last two on 27-28 March and 04-05 October
2009. Each observing period lasted approximately 24 hours, and one
MRI image was taken simultaneously with the first north/south scan
of the HRI IR spectrometer at half-hour intervals to serve as
context spectra. On 27-28 September 2009 during the first attempt
at Earth south polar observations, a full set of MRI context
images was acquired although the HRII and HRIV instruments
were turned off by fault protection shortly after the sequence
started. Version 2.0 includes the application of a horizontal
destriping process, new absolute calibration constants for filters,
and revised electronic crosstalk calibration files.
Volume Format
=============
This single-volume dataset has been formatted according to the ISO-9660
level 2 Interchange Standard for directories and file names as described
in Version 3.7 of the PDS Standards Reference.
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 single-volume dataset are organized into a set of
subdirectories below the top-level directory. The following table shows
the general structure and content. The top-level of the volume is
indicated by a single forward slash (/) and subdirectory names are
surrounded by forward slashes (/). See the *INFO.TXT files located in each
subdirectory for specific information about the contents the subdirectory.
/ Top level of this volume (dataset)
|
|-- AAREADME.TXT This file
|
|-- VOLDESC.CAT Description of logical contents of this volume
|
|--/CALIB/ Directory containing calibration files
|
|--/CATALOG/ Directory containing PDS catalog files providing
| overviews of the mission, instrument, and dataset
|
|--/DATA/ Directory containing calibrated data products
| |
| |--/RADREV/ Reversibly calibrated images in radiance units
| | |
| | +--/YYYY/ Multiple year directories, as needed
| | |
| | +--/DDD/ Multiple day-of-year directories
| | |
| | |-- *.FIT FITS file, 2-D CCD image with three extensions
| | +-- *.LBL PDS label, one for each FITS file
| |
| +--/RAD/ Irreversibly calibrated images in radiance units
| |
| +--/YYYY/ Multiple year directories, as needed
| |
| +--/DDD/ Multiple day-of-year directories
| |
| |-- *.FIT FITS file, 2-D CCD image with three extensions
| +-- *.LBL PDS label, one for each FITS file
|
|--/DOCUMENT/ Directory containing documents most useful for
| understanding this dataset
|
|--/EXTRAS/ Directory containing value-added items
|
+--/INDEX/ Directory containing PDS index files
Whom to Contact for Information
===============================
Questions regarding the scientific elements of this dataset should be
directed to:
Michael A'Hearn
Principal Investigator, EPOXI
Department of Astronomy, University of Maryland
College Park, Maryland 20742 USA
Drake Deming
Co-PI, EPOXI
Principal Investigator, EPOCh Investigation
Department of Astronomy, University of Maryland
College Park, Maryland 20742 USA
Tim Livengood
Co-Investigator, EPOCh Investigation
Goddard Space Flight Center
Greenbelt, MD 20771 USA
Tilak Hewagama
Science Team, EPOCh Investigation
Goddard Space Flight Center
Greenbelt, MD 20771 USA
Kenneth Klaasen
Calibration and Sequencing Lead, EPOXI
Jet Propulsion Laboratory
4800 Oak Grove Drive
Pasadena, CA 91109 USA
Dennis Wellnitz
Sequencing Lead, EPOCh Investigation
Department of Astronomy, University of Maryland
College Park, Maryland 20742 USA
Questions about data formats and geometry-related information
should be directed to:
Brian Carcich
EPOXI Science Data Center
Department of Astronomy, Cornell University
610 Space Sciences Building
Ithaca, NY 14853 USA
Questions regarding the PDS elements in this dataset should be
directed to:
Stephanie McLaughlin
EPOXI Archive Team
Department of Astronomy, University of Maryland
College Park, Maryland 20742 USA