{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_6_1.xsd",
    "_Note": "Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness.",
    "Version": "2.6.1",
    "_MasterURL": "https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/halley_helio1day_position_00000000_v01.json (from all.xml)",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/Comet/Halley/HelioWeb/Ephemeris/P1D",
      "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json",
      "ResourceHeader": {
        "ResourceName": "Position in heliocentric coordinates from SPDF Helioweb",
        "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description",
        "AlternateName": "halley_helio1day_position",
        "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source",
        "Description": " ",
        "_Description": "Source: Master/CDFglobalAttributes/TEXT",
        "Acknowledgement": " ",
        "_Acknowledgement": "Source: Master/CDFglobalAttributes/Acknowledgement",
        "_Rights": {
          "Name": "SPDX",
          "Description": "Creative Commons Zero v1.0 Universal",
          "URL": "https://spdx.org/licenses/CC0-1.0.html",
          "SchemeURI": "https://spdx.org/licenses/"
        },
        "InformationURL": [
          {
            "Name": "Heliocentric Trajectories HelioWeb Data Service, NASA GSFC",
            "URL": "https://omniweb.gsfc.nasa.gov/coho/helios/heli.html",
            "Description": "Heliocentric trajectories for selected spacecraft, planets, and comets, HelioWeb data service, hosted by NASA GSFC",
            "_Note": "Found same URL in master and https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json; not using master for Name and Description.",
            "_source": "https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json"
          },
          {
            "Name": "Satellite Situation Center, SSCWeb, System and Services",
            "URL": "https://sscweb.gsfc.nasa.gov",
            "Description": "The Satellite Situation Center Web, SSCWeb, Service has been developed and is operated jointly by the NASA/GSFC Space Physics Data Facility, SPDF, and the National Space Science Data Center, NSSDC, to support a Range of NASA Science Programs and to fulfill Key International NASA Responsibilities including those of NSSDC and the World Data Center-A for Rockets and Satellites. The Software and associated Database of SSCWeb together form a System to cast Geocentric Spacecraft Location Information into a Framework of Empirical Geophysical Regions and Mappings of Spacecraft Locations along Lines of the Earth's Magnetic Field. This Capability is one Key to Mission Science Planning, both Single Missions and Coordinated Observations of Multiple Spacecraft with Ground-Based Investigations, and to subsequent Multi-Mission Data Analysis.",
            "_source": "https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json"
          },
          {
            "Name": "Heliocentric Trajectories HelioWeb Data Service Usage Instructions, NASA GSFC",
            "URL": "https://omniweb.gsfc.nasa.gov/coho/helios/about_helioweb.html",
            "Description": "Instructions for using the Heliocentric Trajectories HelioWeb data service, hosted by NASA GSFC",
            "_source": "https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json"
          },
          {
            "Name": "Heliocentric Trajectories HelioWeb Data Service Usage via CURL or WGET Commands, NASA GSFC",
            "URL": "https://omniweb.gsfc.nasa.gov/coho/helios/helioweb_command_line_sample.txt",
            "Description": "Instructions for using the Heliocentric Trajectories HelioWeb data service via CURL or WGET commands, hosted by NASA GSFC",
            "_source": "https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json"
          },
          {
            "Name": "HG, HGI, and SE Coordinate System Definitions, NASA GSFC",
            "URL": "https://omniweb.gsfc.nasa.gov/coho/helios/coor_des.html",
            "Description": "Definitions for the Heliographic, HG, Heliographic Inertial, HGI, and Solar Ecliptic, SE, Coordinate Systems, hosted by NASA GSFC",
            "_source": "https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json"
          },
          {
            "Name": "HORIZONS Web Interface, NASA JPL",
            "URL": "https://ssd.jpl.nasa.gov/horizons.cgi",
            "Description": "HORIZONS Web Interface, a web page that provides limited access to the JPL HORIZONS system which can be used to generate ephemerides for solar system bodies",
            "_source": "https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json"
          }
        ]
      },
      "ProviderResourceName": "HALLEY",
      "Caveats": " ",
      "_Caveats": "Source: Master/{'/'.join(p)}",
      "DOI": null,
      "_DOI": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json",
      "AccessInformation": [
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "HTTPS from SPDF",
            "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/planet_and_comet_positions/helio1day",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "halley_helio1day_position_%Y%m%d_%Q.cdf",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "CDF"
          ],
          "Style": "Listing",
          "AccessURL": {
            "Name": "FTPS from SPDF",
            "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/planet_and_comet_positions/helio1day",
            "Description": "In CDF via HTTP from CDAWeb",
            "AccessFilenameTemplate": "halley_helio1day_position_%Y%m%d_%Q.cdf",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "CDF",
            "CSV",
            "GIF",
            "NetCDF",
            "PNG",
            "PS",
            "PDF",
            "XML",
            "x_Script.IDL",
            "x_Script.Python",
            "Text.ASCII",
            "x_WAV"
          ],
          "AccessURL": {
            "Name": "CDAWeb Web Service",
            "URL": "https://cdaweb.gsfc.nasa.gov/WebServices/",
            "Style": "WebService",
            "Description": "Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made.",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION"
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "CDF",
            "GIF",
            "PDF",
            "Text.ASCII",
            "x_WAV"
          ],
          "AccessURL": {
            "Name": "CDAWeb Web Service user interface",
            "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=HALLEY_HELIO1DAY_POSITION",
            "Style": "WebService",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION",
            "Description": "Web service user interface for this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "x_Script.IDL",
            "x_Script.Python"
          ],
          "AccessURL": {
            "Name": "CDAWeb Python Script",
            "URL": "https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/HALLEY_HELIO1DAY_POSITION/clientLibraryExample/",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION",
            "Style": "WebService",
            "Description": "Web service that generates a Python script to access this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/SSCWeb. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "HTML"
          ],
          "AccessURL": {
            "Name": "4D Orbit Viewer",
            "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=HALLEY_HELIO1DAY_POSITION",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION",
            "Style": "x_Visualization",
            "Description": "Web Service to this product."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "CSV",
            "JSON",
            "Binary"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Server",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=HALLEY_HELIO1DAY_POSITION",
            "Style": "HAPI",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION",
            "Description": "Web Service to this product using the HAPI interface."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "x_Script.IDL",
            "x_Script.Javascript",
            "x_Script.MATLAB",
            "x_Script.Python",
            "x_Script.Autoplot",
            "x_Script.curl",
            "x_Script.wget"
          ],
          "AccessURL": {
            "Name": "CDAWeb HAPI Script in Multiple Languages",
            "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=HALLEY_HELIO1DAY_POSITION&return=script",
            "Style": "HAPI",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION",
            "Description": "Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API."
          }
        },
        {
          "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
          "Availability": "Online",
          "AccessRights": "Open",
          "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Natalia Papitashvili at NASA/GSFC/SPDF",
          "Format": [
            "PNG",
            "PDF",
            "SVG"
          ],
          "AccessURL": {
            "Name": "HAPI visualizations",
            "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=HALLEY_HELIO1DAY_POSITION&format=gallery",
            "Style": "x_Visualization",
            "ProductKey": "HALLEY_HELIO1DAY_POSITION",
            "Description": "Web Service that generates plots. See https://hapi-server.org/plot/ for the API."
          }
        }
      ],
      "_AccessInformation": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1984-01-01T00:00:00Z",
          "StopDate": "2020-12-31T00:00:00Z"
        },
        "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop",
        "Cadence": "P1D",
        "_Cadence": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/planet_and_comet_positions/helio1day/halley_helio1day_position_19840101_v01.cdf. The most common cadence, 86400000 [ms] = P1D, occurred for all 13514 timesteps. "
      },
      "Keyword": [
        "Halley (from all.xml/observatory/description/@short)",
        "sc positions (from all.xml/instrument/description/@short)",
        "Space Physics (from Master/CDFglobalAttributes/Discipline)",
        "Interplanetary Studies (from Master/CDFglobalAttributes/Discipline)",
        "Solar Physics (from Master/CDFglobalAttributes/Discipline)",
        "Heliospheric Physics (from Master/CDFglobalAttributes/Discipline)",
        "HALLEY (from Master/CDFglobalAttributes/Source_name)",
        "Halley (from Master/CDFglobalAttributes/Source_name)",
        "HELIO1DAY (from Master/CDFglobalAttributes/Data_type)",
        "1 Day Time Resolution from heliowebweb (from Master/CDFglobalAttributes/Data_type)",
        "position (from all.xml/instrument/@ID)"
      ],
      "ObservedRegion": [
        "Comet"
      ],
      "_ObservedRegion": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json",
      "ProcessingLevel": null,
      "_ProcessingLevel": "Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json",
      "InstrumentID": null,
      "MeasurementType": "Ephemeris",
      "Parameter": [
        {
          "Name": "Time",
          "ParameterKey": "Epoch",
          "Description": "Time, beginning of interval",
          "_Description": "Zero corresponds to 0000-01-01T00.00.000. See https://spdf.gsfc.nasa.gov/pub/software/cdf/doc/cdf390/cdf390ug.pdf",
          "Units": "ms",
          "_Note": "This variable is in the source CDF file. Not all web services will provide access to this variable in this form (e.g., an ISO 8601 string may be used). If the source of the CDF file is a different file type, it may be have been represented in a different format."
        },
        {
          "Name": "Distance from Sun to object",
          "ParameterKey": "RAD_AU",
          "Description": "Distance from Sun to object",
          "Units": "AU",
          "FillValue": "-1e+31"
        },
        {
          "Name": "SE Latitude",
          "ParameterKey": "SE_LAT",
          "Description": "Latitude in Solar Ecliptic Coordinate System (SE)",
          "Units": "deg",
          "FillValue": "-1e+31"
        },
        {
          "Name": "SE Longitude",
          "ParameterKey": "SE_LON",
          "Description": "Longitude in Solar Ecliptic Coordinate System (SE)",
          "Units": "deg",
          "FillValue": "-1e+31"
        },
        {
          "Name": "HG Latitude",
          "ParameterKey": "HG_LAT",
          "Description": "Latitude in heliographic Rotating Coordinate System (HG)",
          "Units": "deg",
          "FillValue": "-1e+31"
        },
        {
          "Name": "HG Longitude",
          "ParameterKey": "HG_LON",
          "Description": "Longitude in Heliographic Rotating Coordinate System (HG)",
          "Units": "deg",
          "FillValue": "-1e+31"
        },
        {
          "Name": "HGI Latitude",
          "ParameterKey": "HGI_LAT",
          "Description": "Latitude in heliographic Inertial Coordinate System (HGI)",
          "Units": "deg",
          "FillValue": "-1e+31"
        },
        {
          "Name": "HGI Longitude",
          "ParameterKey": "HGI_LON",
          "Description": "Longitude in heliographic Inertial Coordinate System (HGI)",
          "Units": "deg",
          "FillValue": "-1e+31"
        }
      ]
    }
  }
}