Table information for 'galileo_epd_cal_corrected_low_res.epn_core'

General

This table is available for ADQL queries and through the TAP endpoint.

Resource 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.

For a list of all services and tables belonging to this table's resource, see Information on resource 'Galileo EPD Calibrated Corrected Low Res Data Collection'

Citing this table

@MISC{vo:EPD_LOW_RES,
  year=2022,
  title={Galileo {EPD} Calibrated Corrected Low Res Data Collection},
  author={In Sook Moon},
  url={http://vo-pds-ppi.igpp.ucla.edu/tableinfo/galileo_epd_cal_corrected_low_res.epn_core},
  howpublished={{VO} resource provided by the {PDS}-{PPI} VO server}
}

Columns

Sorted alphabetically. [Sort by DB column index]

Columns that are parts of indices are marked like this.

VOResource

VO nerds may sometimes need VOResource XML for this table.

Notes

• Note et_prod

  The following values are defined for this field:

  im -- image

  associated scalar fields with two spatial axes, e.g., images with multiple color planes like from multichannel or filter cameras. Preview images (e.g. map with axis and caption) also belong here. Conversely, all vectorial 2D fields are described as catalogue (see below).

  ma -- map

  scalar field/rasters with two spatial axes covering a large area and projected either on the sky or on a planetary body, associated to a Projection parameter (with a short enumerated list of possible values). This is mostly intended to identify complete coverages that can be used as reference basemaps.

  sp-- spectrum

  measurements organized primarily along a spectral axis, e.g., radiance spectra. This includes spectral aggregates (series of related spectra with non-connected spectral ranges, e.g., from several channels of the same instrument

  ds -- dynamic spectrum

  consecutive spectral measurements through time, organized as a time series. This typically implies successive spectra of the same target or field of view.

  sc -- spectral cube

  sets of spectral measurements with 1 or 2 D spatial coverage, e.g., imaging spectroscopy. The choice between Image and spectral_cube is related to the characteristics of the instrument (which dimension is most resolved and which dimensions are acquired simultaneously). The choice between dynamic_spectrum and spectral_cube is related to the uniformity of the field of view.

  pr -- profile

  scalar or vectorial measurements along 1 spatial dimension, e.g., atmospheric profiles, atmospheric paths, sub-surface profiles, traverses…

  pf -- photometric profile

  scalar or vectorial measurements along 1 angular dimension, e.g., phase or polarization curves, phase functions, emission-phase function sequences… typically associated to variations in illumination angle parameters.

  vo -- volume

  other measurements with 3 spatial dimensions, e.g., internal or atmospheric structures, including shells/shape models (3D surfaces).

  mo -- movie

  sets of chronological 2 D spatial measurements.

  cu -- cube

  multidimensional data with 3 or more axes, e.g., all that is not described by other 3 D data types such as spectral cubes or volume. This is mostly intended to accommodate unusual data with multiple dimensions.

  ts -- time series

  measurements organized primarily as a function of time (with exception of dynamical spectra and movies, i.e. usually a scalar quantity). Typical examples of time series include space-borne dust detector measurements, daily or seasonal curves measured at a given location (e.g., a lander), and light curves.

  ca -- catalog

  applies to a single granule providing a list of events, a catalog of object parameters, a list of features… It is good practice to describe the type of data included in the catalogue using a hash-separated-list (e.g., a table of spectra should be described by ca#sp, so that it will respond to a query for spectra).

  ci -- catalogue item

  applies when the service itself provides a catalogue, with entries described as individual granules. The service can be, e.g., a list of asteroid properties or spectral lines. Catalogue_item can be limited to scalar quantities (including strings), and possibly to a single element. This organization allows the user to search inside the catalogue from the TAP query interface.

  sv -- spatial vector

  vector information associated to localization, such as spatial footprints or a GIS-related element. This could contain a kml or geojson file (STC-S strings are provided though the s_region parameter, though). This includes maps of vectors, e.g., wind maps.

  ev -- event

  individual events, typically formatted in VOEvent. Characteristics are provided via the event_* parameters.

• Note et_cal

  CODMAC levels are:

  1 -- raw

  2 -- edited

  3 -- calibrated

  4 -- resampled

  5 -- derived

  6 -- ancillary

Copyright and such: PPI