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Parent Directory -
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data/ 20-Jun-2012 08:52 -
document/ 29-Dec-2012 17:56 -
DOWNLOAD/ 02-Jan-2013 11:08 -
index/ 30-Dec-2012 15:45 -
aareadme.txt 09-Dec-2012 20:04 12K
dataset.html 03-Jan-2013 11:32 3.9K
voldesc.cat 09-Dec-2012 19:09 4.4K [PDS catalog file]
PDS_VERSION_ID = PDS3
RECORD_TYPE = "STREAM"
OBJECT = TEXT
NOTE = "
AAREADME file for the EPOXI HRIV
(High Resolution Visible CCD)
Earth Observations Calibrated Data Archive.
"
PUBLICATION_DATE = 2012-12-31
END_OBJECT = TEXT
END
Introduction
============
This dataset contains calibrated, narrow band filter images
(350-950 nm) of Earth acquired by the Deep Impact High Resolution
Visible CCD (HRIV) during the EPOCh and Cruise 2 phases of the EPOXI
mission. Five sets of observations were acquired on 18-19 March,
28-29 May and 04-05 June 2008 and on 27-28 March and 04-05 October
2009 to characterize Earth as an analog for extrasolar planets.
Each observing period lasted approximately 24 hours. HRIV images
were acquired once per hour with the filters centered on 350, 750
and 950 nm, whereas the 450-, 550-, 650-, and 850-nm data were taken
every 15 minutes. During the observing period in May 2008, the Moon
transited across Earth as seen from the spacecraft. On 27 September
2009 during the first attempt of an Earth south polar observation,
only seven HRIV frames were acquired before fault protection turned
that instrument off; the full sequence was successfully rerun on
04-05 October 2009. Version 2.0 includes the application of a
horizontal destriping process 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