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Description
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 low 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 the full set of channels covering the full energy and
species range of EPD. The time and pitch angle resolution is low.
Higher resolution is available for some channels that can be found in
the medium and high resolution files.the energy deposited in the one
solid state detector (Energy_keV column) and the time of flight
(TOF_ns) within the instrument are recorded.
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