{
  "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_2_9.xsd",
    "Version": "2.2.9",
    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/Helios2/E2/PT1H",
      "ResourceHeader": {
        "ResourceName": "Helios 2 E2 (Neubauer) 1-HR Magnetometer Data",
        "ReleaseDate": "2021-03-11T18:39:11Z",
        "Description": "The instrument (E2) consisted of a triaxial fluxgate magnetometer mounted on a 2.75-m boom to make magnetic field measurements up to 4 Hz. Data from each axis were first sent through a low-pass filter with the 3-dB attenuation point at 4 Hz. Depending on the telemetry format and bit rate, the data were fed either into a time-averaging computer or directly connected to telemetry. A shock identification computer triggered the storage of rapid-rate data in the spacecraft memory when there were discontinuities in the variations of the ambient magnetic field. Two measurement ranges were used, plus or minus 100 and 400 nT with resolutions of plus or minus 0.2 and 0.8 nT, respectively. The instrument was equipped with a flipper mechanism, which reoriented each sensor by 90 deg periodically. For detailed information, see p. 232 of Raumfahrtforschung, v. 19, n. 5, 1975.",
        "Acknowledgement": "Please acknowledge the PI and the National Space Science Data Center for these data",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Fritz.M.Neubauer",
            "Role": "PrincipalInvestigator"
          },
          {
            "PersonID": "spase://SMWG/Person/A.Maier",
            "Role": "CoInvestigator"
          }
        ],
        "InformationURL": [
          {
            "Name": "SPDF Helios E2 Home Page",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/helios/helios2/mag/fgm_neubauer_nmc.txt"
          },
          {
            "Name": "Readme file at SPDF",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/helios/helios2/mag/hour_neubauer/he2mgb_fmt.txt"
          }
        ],
        "PriorID": [
          "spase://VHO/NumericalData/Helios2/E2/PT1H",
          "spase://VSPO/NumericalData/Helios2/E2/PT1H",
          "spase://VSPO/NumericalData/P_HELIOS2_HDR_E2_MAG_1HR",
          "spase://VSPO/NumericalData/Helios2/E2/PT1H"
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF",
        "Availability": "Online",
        "AccessRights": "Open",
        "AccessURL": [
          {
            "Name": "FTPS from SPDF (not with most browsers)",
            "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/helios/helios2/mag/hour_neubauer/",
            "Description": "In ASCII via FTP from SPDF"
          },
          {
            "Name": "HTTPS from SPDF",
            "URL": "https://spdf.gsfc.nasa.gov/pub/data/helios/helios2/mag/hour_neubauer/",
            "Description": "In ASCII via HTTP from SPDF"
          }
        ],
        "Format": "Text.ASCII"
      },
      "InstrumentID": "spase://SMWG/Instrument/Helios2/E2",
      "MeasurementType": "MagneticField",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "1974-01-01T00:00:00Z",
          "StopDate": "1979-12-31T23:59:59Z"
        },
        "Cadence": "PT1H"
      },
      "ObservedRegion": [
        "Heliosphere.NearEarth",
        "Heliosphere.Inner"
      ],
      "Caveats": "THE SSE SYSTEM IS ANALOGOUS TO THE GEOCENTRIC SOLAR ECLIPTIC SYSTEM IN THAT THE X-AXIS POINTS FROM THE CENTRAL BODY (THE SPACECRAFT) TOWARDS THE SUN, THE Y-AXIS POINTS OPPOSITE TO ORBITAL MOTION IN THE ECLIPTIC, AND THE Z-AXIS POINTS NORTH FROM THE ECLIPTIC. THE HELIOS 1/2 SPACECRAFT HAD ORBITS IN THE ECLIPTIC WITH SPIN AXES PERPENDICULAR TO THE ECLIPTIC. SINCE THERE WERE TWO HELIOS SPACECRAFT, WE REFER TO THE SPACECRAFT-CENTERED (RATHER THAN HELIOS-CENTERED SOLAR ECLIPTIC ) SYSTEM TO ELIMINATE ANY POSSIBLE CONFUSION.",
      "Parameter": [
        {
          "Name": "Year",
          "ParameterKey": "Column_1",
          "Description": "YEAR OF THE DATA INTERVAL (LAST TWO DIGITS ONLY)",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Day of Year",
          "ParameterKey": "Column_2",
          "Description": "DAY OF THE DATA INTERVAL FROM THE FIRST DAY OF THE ABOVE YEAR, JAN. 1= DAY 1",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Hour",
          "ParameterKey": "Column_3",
          "Description": "HOUR OF THE DAY OF THE DATA INTERVAL",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "Bxse",
          "ParameterKey": "Column_4",
          "Description": "THE COMPONENT OF THE INTERPLANETARY MAGNETIC FIELD DIRECTED TOWARD THE SUN AND PARALLEL TO THE X-AXIS OF THE SPACECRAFT-CENTERED SOLAR ECLIPTIC (SSE) COORDINATE SYSTEM (FIELD IN NANOTELSAS).",
          "Units": "nT",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SSE"
          },
          "Field": {
            "Qualifier": "Component.I",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Byse",
          "ParameterKey": "Column_5",
          "Description": "THE COMPONENT OF THE INTERPLANETARY MAGNETIC FIELD IN THE ECLIPTIC ALONG THE SSE Y-AXIS",
          "Units": "nT",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SSE"
          },
          "Field": {
            "Qualifier": "Component.J",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Bzse",
          "ParameterKey": "Column_6",
          "Description": "THE COMPONENT OF THE INTERPLANETARY MAGNETIC FIELD DIRECTED PERPENDICULAR TO AND NORTHWARD FROM THE ECLIPTIC, PARALLEL TO THE SSE Z-AXIS",
          "Units": "nT",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SSE"
          },
          "Field": {
            "Qualifier": "Component.K",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Bmag",
          "ParameterKey": "Column_7",
          "Description": "AVERAGE OF FINE SCALE FIELD MAGNITUDES FOR THE INTERPLANETARY MAGNETIC FIELD VECTOR (NANOTESLAS)",
          "Units": "nT",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SSE"
          },
          "Field": {
            "Qualifier": "Magnitude",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Btheta",
          "ParameterKey": "Column_8",
          "Description": "ELEVATION ANGLE OF THE MAGNETIC FIELD VECTOR IN THE SSE SYSTEM (I.E., SSE LATITUDE ANGLE).",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SSE"
          },
          "Field": {
            "Qualifier": "DirectionAngle.ElevationAngle",
            "FieldQuantity": "Magnetic"
          }
        },
        {
          "Name": "Bphi",
          "ParameterKey": "Column_9",
          "Description": "AZIMUTH ANGLE OF THE MAGNETIC FIELD VECTOR IN THE SSE SYSTEM (I.E., SSE LONGITUDE ANGLE)",
          "CoordinateSystem": {
            "CoordinateRepresentation": "Cartesian",
            "CoordinateSystemName": "SSE"
          },
          "Field": {
            "Qualifier": "DirectionAngle.AzimuthAngle",
            "FieldQuantity": "Magnetic"
          }
        }
      ]
    }
  }
}