Index of /holdings/vega1-c-iks-3-rdr-halley-processed-v1.0
Name Last modified Size Description
Parent Directory -
catalog/ 01-Jun-2011 21:28 -
data/ 01-Jun-2011 21:29 -
document/ 01-Jun-2011 21:32 -
DOWNLOAD/ 15-May-2012 11:15 -
index/ 15-May-2012 11:15 -
aareadme.txt 25-May-2011 10:38 3.3K
dataset.html 03-Jun-2014 08:46 3.4K
voldesc.cat 01-Jun-2011 21:37 3.3K [PDS catalog file]
PDS_VERSION_ID = PDS3
RECORD_TYPE = "STREAM"
OBJECT = TEXT
PUBLICATION_DATE = 2011-05-25
NOTE = "AAREADME File for re-organized IHW data set"
END_OBJECT = TEXT
END
Re-organized International Halley Watch (IHW) Data Sets
=======================================================
The original IHW volume HAL_0025 and HAL_0026 contains data from
several spacecraft that flew by comets Halley and Giacobini-Zinner,
over 40 data sets in all on the 2 volumes. The data were sorted
into subdirectories by spacecraft and instrument, with shared
supporting directories.
The data were also archived under a fairly early form of the PDS
Standards, and formatted to an equally early form of the FITS table
standard, where appropriate, occasionally producing some arcane
formats for the modern user - including PDS labels with deprecated
terminology and FITS files that sometimmes have their header segments
separated from their data segments.
The reorganization effort sought to separate the data files constituting
the unique data sets into a more contemporary, single-data-set-per-volume
format for ease of access and distribution. The data have been sorted
into a subdirectory hierarchy based on observation date, unless the number
of data files was small enough that this seemed more disruptive than
helpful, in which case all the observations are located directly in the
DATA/ subdirectory.
Although the original disks included executable files for some simple
utilities, these have been omitted from the reorganized data. No modern
system would run the executables, and in most cases no source code was
provided. For those rare cases where source was provided, it has been
relocated to a relevant support directory where its principal value is
as documentation. Note that PDS does not and will not support this code.
- A.C.Raugh, 2011-05-25