Information on Service 'Galileo EPD Calibrated Corrected Medium Res Data Collection'
These are reprocessed measurements by the Engergetic Particle
Detector (EPD) instrument onboard the Galileo spacecraft that orbited
Jupiter and measured intensities of ion and electron radiation in the
keV and MeV energy range. This set is version 31 of reprocessing and
version 1.0 of PDS delivery. Data in the medium resolution files
include measurements that are binned into channels responding to
certain energy and species ranges. The files are comma separated.
Invalid entries will have -1.000000E+38 as an entry. The first 4 lines
of each data text file provide information on the channels included
here: The first line of each file lists the names of the channels
included. The second line lists the center energies of these channels
in keV. The third line lists the channels again. The forth line lists
the mass of the measured particle in AMU. Zero mass refers to
electrons. The forth line in the data text file labels the columns
that follow in the file. The columns include times, radiation
measurements, spacecraft location, instrument look direction, and some
supplementary information. Radiation measurements are provided both as
best calibrated and cleaned intensities as well as raw, uncorrected
count rates. Columns with channel names followed by a "j" include
calibrated differential intensities of the given channel. If the value
is negative, it should be ignored and particularly not included in
averages. For the difference between -1.000000E+38 and all other
negative values, see the User Guide. Columns ending with "f" provide
differential intensities based on a combination of various channels.
Columns ending with "i" include calibrated integral intensities.
Columns with plain channel names describe the raw uncorrected count
rate. Columns ending with "bg" are raw count rates measured behind the
calibration shield. Each following line will provide the same data but
for different times. More information can be found in the User Guide.
This includes a limited set of channels with intermediate time and
pitch angle resolution. If columns with plain channel names have
-1.000000E+38 values, you might find valid values in the lower
resolution files.
For a list of all services and tables belonging to this service's
resource, see Information on resource 'Galileo EPD Calibrated Corrected Medium Res Data Collection'
Overview
You can access this service using:
-
dlmeta --
a datalink interface for discovering access options (processed data, related datasets...) for a dataset. You usually need a publisherDID to use this kind of service. For special applications, the base URL of this service might still come handy: http://vo-pds-ppi.igpp.ucla.edu/galileo_epd_cal_corrected_med_res/ppi/dl/dlmeta
This service is not published.
This can mean that it was deemed too unimportant, for internal
use only, or is just a helper for a published service.
Equally likely, however,
it is under development, abandoned in development or otherwise
unfinished. Exercise caution.
Copyright, License, Acknowledgements
PPI
VOResource XML (that's something exclusively for VO nerds)