Data Set Overview
    =================
      The data set consists of calibrated observations, also known as
      CDRs.

      For all the CDR products there is a detached PDS label file that
      describes the contents of one data file. Each label file will have
      the same base name as the data file it is describing, with the
      extension .LBL to denote a label file. The label file defines the
      start time and end of the observation, product creation time, and
      the structure of the ASSCI tables. Each data product
      is identified within the PDS label by a STANDARD_DATA_PRODUCT_ID
      value, shown in parentheses in the table below.


    Instrument Overview
    ===================
      The JEDI sensors consists of a 60-mm diameter, hockey puck-like
      cylinder, in which a start foil and stop foil, wrapped around
      opposite curved sides of the cylinder, constitute the TOF chamber.
      The detectors are arranged so that each detector senses the
      events within a given range of incidence angles. Each of the 6
      detector modules is composed of 4 pixels: large and small ion and
      large and small electron. See the INSTRUMENT.CAT file for more
      information.

    Calibration Overview
    ====================
      This data set is calibrated; it provides the instrument team's
      best available interpretation of the measured data at the time
      of release.  This understanding is evolving and it is expected
      that the calibration process will change and improve with subsequent
      releases.


    Parameters
    ==========
      The timing parameters in the CDRs are identical to those in the EDRs.
      See JEDI_J_EDR_DS.CAT file for a short description or the JEDI SIS for
      more detailed information.

      In addition to the timing parameters and the uncalibrated counts, and
      calibrated counts per second and intensity spectra, for each data
      record in the CDR, we include ephemeris attitude and pitch angle
      information for the convenience of the end user.  We also include a
      subset of the basic rate information so the end user can obtain an
      understanding of the level of activity in the instrument system as this
      will affect the instrument performance.

      The additional quantities are, in brief:

      :

      Spacecraft Position - X, Y, and Z in the POS frame (POS = JSE for
                            observations at Jupiter).

      Planetary Position  - Latitude and Longitude in the LOC frame (LOC=
                            IAU_JUPITER for observations at Jupiter).

      Look Direction      - Unit Vector X, Y, and Z of the 'look direction'
                            of the negative of the incident particle velocity
                            vector for each telescope.

      Pitch Angle (1 column per telescope = 6 columns) - The angle between
                            the incident particle velocity vector and the
                            local magnetic field.

       which of these values are present depends on the
                            data type, see JEDI SIS for details:

      SSD0-SSD5           - Number of pulses on the Solid State Energy
                            detector for telescope number 0-5

      VEP (Valid Events Processed) - Number of events actually processed by
                            the flight software

      VEE (Valid Energy Events) - Total number of events in all SSD (Energy)
                            detectors.

      Start0, Stop0       - Number of pulses on the end of the Start or Stop
                            anode nearest to look direction 0.

      VTOFXE              - Number of valid TOFxE events counted.

      VTOFXPH             - Number of valid TOFxPH events counted.




    Data
    ====
      The JUNO JEDI CDR data set products are the same as described in
      JEDI_J_EDR_DS.CAT.

Confidence Level Overview
   =========================
     The JUNO JEDI CDR data are, at the present time, calibrated simply by
     multiplying by a factor, determined for each individual telescope and
     pixel, which captures the efficiency and geometric factor for that
     detector. The underlying counts per second rate has not been adjusted
     for background or instrument saturation effects. These are strictly
     preliminary calibrations at this time.

   Review
   ======
     The JUNO JEDI CDR were reviewed internally by the JEDI team prior to
     release to the PDS. PDS also performed an external review of the
     JEDI EDR.


   Data Coverage and Quality
   =========================
     Data reported are the calibrated data for the time period:
      2013-279T00:00:00 through 2014-104T23:59:59

   Limitations
   ===========
     The calibrations applied to the data both in terms of efficiency factors
     and energy descrimination are still preliminary. Instrument team
     calibration efforts are ongoing.