{
  "HAPI": "3.1",
  "status": {
    "code": 1200,
    "message": "OK"
  },
  "startDate": "1972-03-04T00:00:00.000Z",
  "stopDate": "2002-03-02T23:59:59.999Z",
  "citation": "https://doi.org/10.17189/edqg-a160",
  "parameters": [
    {
      "name": "DATETIME",
      "length": 24,
      "units": "UTC",
      "type": "isotime",
      "fill": null
    },
    {
      "name": "BEG_DAY_FRAC",
      "description": "Beginning Day Fraction in Earth Received Time (ERT). Beginning time is the time of the first data point found in the interval.",
      "units": null,
      "type": "double",
      "fill": null
    },
    {
      "name": "END_DAY_FRAC",
      "description": "Ending Day Fraction in Earth Received Time (ERT). Ending time is the time of the last data point in the interval.",
      "units": null,
      "type": "double",
      "fill": null
    },
    {
      "name": "SC_ID",
      "description": "Spacecraft ID (10 or 11).",
      "units": null,
      "type": "integer",
      "fill": null
    },
    {
      "name": "PERIOD_LEN",
      "description": "Length of Period in Minutes. Since these are 24-hour averages, this number will be 1440.",
      "units": "min",
      "type": "integer",
      "fill": null
    },
    {
      "name": "PERIOD_TYPE",
      "description": "Period Type. A number assigned to describe the accumulation period; for 24-hour averages it will be 5.",
      "units": null,
      "type": "integer",
      "fill": null
    },
    {
      "name": "NUM_SAMPLES",
      "description": "Number of samples this interval.",
      "units": null,
      "type": "integer",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "EFF_COUNTS",
      "description": "Effective Counts for each of 12 detectors. Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "Counts",
      "type": "double",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "SUM_RAW_NORM",
      "description": "(Sum of Raw Counts) / 0.09375 for each of 12 detectors. Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "dimensionless",
      "type": "double",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "COUNT_RATE_AVE",
      "description": "Counting Rate Average in Counts/sec for each of 12 detectors. Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "Counts/s",
      "type": "double",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "SIGMA",
      "description": "Sigma (Standard Deviation) for each of 12 detectors. Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "dimensionless",
      "type": "double",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "FOURIER_M",
      "description": "M Fourier Coefficient for each of 12 detectors. Used in the formula F(phi) = M ( 1 + K Cos ( phi - D ) ). Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "dimensionless",
      "type": "double",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "FOURIER_K",
      "description": "K Fourier Coefficient for each of 12 detectors. Used in the formula F(phi) = M ( 1 + K Cos ( phi - D ) ). Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "dimensionless",
      "type": "double",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "FOURIER_D",
      "description": "D Fourier Coefficient for each of 12 detectors. Used in the formula F(phi) = M ( 1 + K Cos ( phi - D ) ). Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "dimensionless",
      "type": "double",
      "fill": null
    },
    {
      "size": [
        12
      ],
      "name": "SUM_RAW_COUNTS",
      "description": "Sum of Raw Counts for each of 12 detectors. Detector order: (1) G, (2) A, (3) B, (4) G, (5) AB, (6) ABC, (7) C, (8) D, (9) ABC, (10) DEF, (11) G+G, (12) ABC+ABC.",
      "units": "dimensionless",
      "type": "double",
      "fill": null
    },
    {
      "name": "NUM_ERRORS",
      "description": "Number of Errors this Interval.",
      "units": null,
      "type": "integer",
      "fill": null
    },
    {
      "name": "DAY_FRAC_1950",
      "description": "Day and Day Fraction since 1950.0. This time is spacecraft event time for the center time of the data used in the sum.",
      "units": null,
      "type": "double",
      "fill": null
    },
    {
      "name": "RADIUS_SC_EARTH",
      "description": "Radius to Spacecraft from Earth in AU.",
      "units": "AU",
      "type": "double",
      "fill": null
    },
    {
      "name": "EARTH_SUN_DIST",
      "description": "Earth-Sun Distance in AU. All positional coordinates are referred to the equinox/ecliptic of date.",
      "units": "AU",
      "type": "double",
      "fill": null
    },
    {
      "name": "RADIUS_SC_SUN",
      "description": "Radius to Spacecraft from the Sun in AU. All positional coordinates are referred to the equinox/ecliptic of date.",
      "units": "AU",
      "type": "double",
      "fill": null
    },
    {
      "name": "CEL_LON_EARTH",
      "description": "Celestial Longitude of Earth (Degrees). Measured in a reference system using the Sun as the reference body and the true ecliptic of date as the reference plane. Longitudes are measured eastward from the line between the vernal equinox and the Sun. Latitudes are measured from the plane; northward is positive. All positional coordinates are referred to the equinox/ecliptic of date.",
      "units": "deg",
      "type": "double",
      "fill": null
    },
    {
      "name": "CEL_LON_SC",
      "description": "Celestial Longitude of Spacecraft (Degrees). Measured in a reference system using the Sun as the reference body and the true ecliptic of date as the reference plane. Longitudes are measured eastward from the line between the vernal equinox and the Sun. Latitudes are measured from the plane; northward is positive. All positional coordinates are referred to the equinox/ecliptic of date.",
      "units": "deg",
      "type": "double",
      "fill": null
    },
    {
      "name": "LON_SOL_EQUATOR",
      "description": "Longitude of Solar Equator + 270 (Degrees). Calculated quantity. Inclination of solar equator to ecliptic I=7.25 degrees. Longitude of the ascending node of the solar equator on the ecliptic: Omega=73 degrees+40 minutes+50.25*t seconds, where t is the time in years reckoned from 1850.0. Reference: Explanatory Supplement to the Astronomical Ephemeris and the American Ephemeris and Nautical Almanac, 1961, page 307.",
      "units": "deg",
      "type": "double",
      "fill": null
    },
    {
      "name": "CEL_LAT_EARTH",
      "description": "Celestial Latitude of Earth (Degrees). Measured in a reference system using the Sun as the reference body and the true ecliptic of date as the reference plane. Longitudes are measured eastward from the line between the vernal equinox and the Sun. Latitudes are measured from the plane; northward is positive. All positional coordinates are referred to the equinox/ecliptic of date.",
      "units": "deg",
      "type": "double",
      "fill": null
    },
    {
      "name": "CEL_LAT_SC",
      "description": "Celestial Latitude of Spacecraft (Degrees). Measured in a reference system using the Sun as the reference body and the true ecliptic of date as the reference plane. Longitudes are measured eastward from the line between the vernal equinox and the Sun. Latitudes are measured from the plane; northward is positive. All positional coordinates are referred to the equinox/ecliptic of date.",
      "units": "deg",
      "type": "double",
      "fill": null
    },
    {
      "name": "HELIOLAT_SC",
      "description": "Heliographic Latitude of Spacecraft (Degrees). Calculated quantity. Inclination of solar equator to ecliptic I=7.25 degrees. Longitude of the ascending node of the solar equator on the ecliptic: Omega=73 degrees+40 minutes+50.25*t seconds, where t is the time in years reckoned from 1850.0. Reference: Explanatory Supplement to the Astronomical Ephemeris and the American Ephemeris and Nautical Almanac, 1961, page 307.",
      "units": "deg",
      "type": "double",
      "fill": null
    },
    {
      "name": "HELIOLAT_EARTH",
      "description": "Heliographic Latitude of Earth (Degrees). Calculated quantity. Inclination of solar equator to ecliptic I=7.25 degrees. Longitude of the ascending node of the solar equator on the ecliptic: Omega=73 degrees+40 minutes+50.25*t seconds, where t is the time in years reckoned from 1850.0. Reference: Explanatory Supplement to the Astronomical Ephemeris and the American Ephemeris and Nautical Almanac, 1961, page 307.",
      "units": "deg",
      "type": "double",
      "fill": null
    }
  ],
  "x_LastUpdate": "2026-04-14T15:09:06Z"
}