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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. The TOFxE and DeltaExE files include
event data of ion measurements. Event data are different than the
channelized data in the high, medium, and low resolution files. Event
data record the full information of a measured particle. Every "event"
is the measurement of a time of flight (TOF) within the instrument and
energy deposited within a detector (TOFxE file), or two energy values
deposited within the two detector layers (DeltaExE file). The
deposited energy values are generally different from the energy the
particle has in the ambient space. Event data provides measured values
in the native resolution of the instrument. Because such high
resolution increases data volume, event data cannot be taken
continuously and downlinked all the time. Only the provided subset of
this data was kept. The files are comma separated. Invalid entries
will have values of -1.000000E+38. Times are provided in the format
Year.DOYHHMMSSM (first column) and fractional year (second column)
More information can be found in the User Guide. This file includes
measurements by the EPD/CMS/TOFxE instrument. For each counted event,
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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