Corresponding Dataset for "Ganymede's Ionosphere observed by a Dual-Frequency Radio Occultation with Juno"

           Corresponding Dataset for "Ganymede’s Ionosphere observed 
             by a Dual-Frequency Radio Occultation with Juno"
                             README FILE
                              VERSION 2
                            Dustin Buccino
                             April 22, 2024
                       Jet Propulsion Laboratory
                  California Institute of Technology

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VERSION 2 INFORMATION
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   Version 2 of this dataset separates the Electron Density profile from the
main data files and makes a correction to the egress profile that was
discovered. Differences in egress profile are very small and within
the uncertainties. Furthermore egress is statistically a non-detection
(zero densities), but for sake of accuracy they are reposted to be
consistent with the publication.

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INTRODUCTION
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    This dataset contains processed radio science data and results of the
Juno Ganymede radio occultation. This dataset is provided in order to 
supplement the submitted article to the "Geophysical Research Letters"
journal:

    Buccino, D.R., et al (2022), Ganymede’s Ionosphere observed by a 
    Dual-Frequency Radio Occultation with Juno, Geophysical Research 
    Letters, submitted February 2022.

    Please note the raw data used in this analysis are not provided in this
supplementary dataset. The raw Juno Gravity Science Data may be found at 
the Planetary Data System:

    Buccino, D. R. (2016). Juno jupiter gravity science raw data set 
    V1.0, JUNO-J-RSS-1 JUGR-V1.0, NASA planetary data system (PDS). 
    Retrieved from https://atmos.nmsu.edu/PDS/data/jnogrv_1001/
    

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ARCHIVE INFORMATION
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    This archive contains two files within the root directory.
    
    ROOT
     `- JunoG34OccData_Egress_v2.csv

            This data file contains the EGRESS data relevant to the radio
            occultation. The data is a timeseries of impact parameter, sky
            sky frequency at X-band and Ka-band, the dual-frequency 
            combination, the calibrated dual-frequency, Total Electron 
            Content.

     `- JunoG34_GRL_Egress_Profile_v2.csv

            This data file contains the EGRESS Electron density, and
            1-sigma electron density uncertainty.

     `- JunoG34OccData_Ingress_v2.csv

            This data file contains the INGRESS data relevant to the radio
            occultation. The data is a timeseries of impact parameter, sky
            sky frequency at X-band and Ka-band, the dual-frequency 
            combination, the calibrated dual-frequency, Total Electron 
            Content.

     `- JunoG34_GRL_Ingress_Profile_v2.csv

            This data file contains the INGRESS Electron density, and
            1-sigma electron density uncertainty.

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FILE FORMAT
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    This dataset contains only a comma-separated text files which are
given with the "*.csv" extension.

    CSV FILES
    -------------------------------------------------------------------------

    The Comma-Separated Value (CSV) files are plain-text files. Values in
    each data file are separated using a comma ",". Each column is defined 
    by a header row which provides a description of each column.
    

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ACKNOWLEDGMENTS
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This work was carried out at the Jet Propulsion Laboratory, 
California Institute of Technology, under contract with the National 
Aeronautics and Space Administration. Government sponsorship acknowledged.

EG, LGC, PT, MZ and AC are grateful to the Italian Space Agency (ASI) for 
financial support through Agreement No. 2018-25-HH.0 in the context of ESA's 
JUICE mission, and Agreement No. 2017-40-H.1-2020, and its extension 
2017-40-H.02020-13-HH.0, for ESA’s BepiColombo and NASAs Juno radio science 
experiments. EG is grateful to "Fondazione Cassa dei Risparmi di Forlì" for 
financial support of his PhD fellowship.

PS and AH were supported by NASA Contract NNM06AA75C from the Marshall 
Space Flight Center under subcontract 699054X from Southwest Research 
Institute.

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PRIMARY POINT OF CONTACT
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Dustin Buccino
Jet Propulsion Laboratory
Planetary Radar and Radio Sciences
(818) 393 - 1072
Dustin.R.Buccino@jpl.nasa.gov

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ACRONYMS AND ABBREVIATIONS
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     ASCII  American Standard Code for Information Interchange
     DOY    Day of year
     DSN    Deep Space Network
     JPL    Jet Propulsion Laboratory
     NAIF   Navigation Ancillary Information Facility
     NASA   National Aeronautics and Space Administration
     PDS    Planetary Data System
     RS     Radio Science
     RSS    Radio Science Subsystem
     SIS    Software Interface Specification
     TXT    Text file
     UTC    Universal Time, Coordinated