PDS_VERSION_ID         = PDS3

RECORD_TYPE            = STREAM
INSTRUMENT_HOST_NAME   = "HUBBLE SPACE TELESCOPE"
INSTRUMENT_NAME        = "WIDE FIELD PLANETARY CAMERA 2"
TARGET_NAME            = MARS
OBJECT                 = TEXT
   PUBLICATION_DATE     = 2003-10-13
   NOTE                 = "Introduction to Hubble Space Telescope
     Wide Field Planetary Camera 2 observations of Mars"
END_OBJECT             = TEXT
END

HUBBLE SPACE TELESCOPE WIDE FIELD PLANETARY CAMERA 2 OBSERVATIONS OF MARS

Introduction
------------

This data set contains observations of Mars from the Wide Field
Planetary Camera 2 instrument on the Hubble Space Telescope, acquired
between April 27, 1999 and September 4, 2001, by research teams lead
by Jim Bell (Cornell University), Phil James (University of Toledo),
and Keith Noll (Space Telescope Science Institute).

Information about this data set can be found in the DATASET.CAT file
in the CATALOG directory of this archive.

File Formats
------------

The data products in this archive are stored as FITS image and
spectral cube files with detached ASCII-text PDS labels.

The file naming convention for spectral cube files is yymmdd_proj.CUB
where "yymmdd" is the two-digit year, month, and day of acquisition
and "proj" is either "CYL" for simple cylindrical projection or "ORTH"
for orthographic projection.  An example file name is 990427_CYL.CUB.

The file naming convention for image files is RLxxxxxxxx1A[_proj].IMG
where "R" stands for "Radiance factor calibrated, "L" stands for
Lucey-Richardson PSF deconvolved, and "xxxxxxxx" contains a
combination of letters and numbers, the first six of which are the
rootname of the HST archive data set to which the file belongs.  All
files belonging to a given dataset share the same rootname.  In
addition, the extension "proj" is "CYL" for simple cylindrical
projection, "ORTH" for orthographic projection, or omitted for an
unprojected image.  An example file name is RL6GQ0704M1A_ORTH.IMG.

Each data file is described by a PDS label in a separate file with the
same name, extension ".LBL", in the same directory as the data file.
The labels contain identification and observation parameters
associated with the data files and definitions for the IMAGE and
SPECTRAL_CUBE objects.

Volume Contents
---------------

This archive includes the following files and directories.

Root directory
   AAREADME.TXT - the file you are reading
   VOLDESC.CAT  - volume description for the PDS catalog

INDEX directory
   INDXINFO.TXT - description of contents of this directory
   INDEX.TAB    - index of all products in the archive
   INDEX.LBL    - PDS label that describes INDEX.TAB

CATALOG directory
   CATINFO.TXT  - description of contents of this directory
   *.CAT        - descriptions of dataset, instrument, instrument host,
                  and personnel for the PDS catalog

DATA directory
   Data files are aggregated by day of observation, with a separate
   subdirectory for each day, named according to the format YYYYMMDD.


Contacts
--------

For questions concerning these data products and documentation, contact:

           PDS Geosciences Node
           Washington University
           Dept. of Earth and Planetary Sciences
           1 Brookings Drive
           St. Louis, MO 63130
           314-935-5493

           WWW Site:  http://pds-geosciences.wustl.edu/
           Electronic mail address:  geosci@wunder.wustl.edu