{
    "startDate": "1998-02-04T00:00:31Z",
    "stopDate": "2024-07-09T23:59:13Z",
    "sampleStartDate": "2024-07-08T00:00:17Z",
    "sampleStopDate": "2024-07-08T23:59:13Z",
    "cadence": "PT1M4S",
    "x_cadence_fraction": 1,
    "x_cadence_note": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/ace/swepam/level_2_cdaweb/swe_h0/1998/ac_h0_swe_19980204_v06.cdf. The most common cadence, 64000 [ms] = PT1M4S, occurred for all 1349 timesteps.",
    "maxRequestDuration": "PT4316800S",
    "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesA.html#AC_H0_SWE",
    "contact": "D. J. McComas @ SWRI",
    "resourceID": "https://doi.org/10.48322/tsfn-6v47",
    "additionalMetadata": {
        "name": "SPASE",
        "contentURL": "https://spase-metadata.org/NASA/NumericalData/ACE/SWEPAM/L2/PT64S.html"
    },
    "parameters": [
        {
            "name": "Time",
            "type": "isotime",
            "units": "UTC",
            "length": 24,
            "fill": null,
            "x_description": "Time, beginning of interval",
            "x_cdf_NAME": "Epoch",
            "x_cdf_DataType": "CDF_EPOCH"
        },
        {
            "name": "Np",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "Solar Wind Proton Number Density, scalar",
            "fill": "-1.0E31",
            "units": "#/cc",
            "x_label": "H_Density",
            "x_format": ".4f",
            "x_fractionDigits": "4",
            "x_cdf_FORMAT": "F8.4",
            "x_cdf_FIELDNAM": "Proton No. density",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch"
        },
        {
            "name": "Vp",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "Solar Wind Bulk Speed",
            "fill": "-1.0E31",
            "units": "km/s",
            "x_label": "SW_H_Speed",
            "x_format": ".2f",
            "x_fractionDigits": "2",
            "x_cdf_FORMAT": "f8.2",
            "x_cdf_FIELDNAM": "Solar Wind Proton Speed",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch"
        },
        {
            "name": "Tpr",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "radial component of the proton temperature",
            "fill": "-1.0E31",
            "units": "Kelvin",
            "x_label": "H_Temp_radial",
            "x_format": ".1f",
            "x_fractionDigits": "1",
            "x_cdf_FORMAT": "F9.1",
            "x_cdf_FIELDNAM": "Proton Temperature",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch"
        },
        {
            "name": "alpha_ratio",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "alpha to proton density ratio",
            "fill": "-1.0E31",
            "units": "ratio",
            "x_label": "Na/Np",
            "x_format": ".4f",
            "x_fractionDigits": "4",
            "x_cdf_FORMAT": "F8.4",
            "x_cdf_FIELDNAM": "alpha/proton ratio",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch"
        },
        {
            "name": "V_GSE",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "Solar Wind Velocity in GSE coord., 3 components",
            "fill": "-1.0E31",
            "units": "km/s",
            "x_label": [
                "VX (GSE)",
                "VY (GSE)",
                "VZ (GSE)"
            ],
            "x_format": ".1f",
            "x_fractionDigits": "1",
            "x_cdf_FORMAT": "f8.1",
            "x_cdf_FIELDNAM": "Solar Wind Velocity (GSE)",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch",
            "size": [3]
        },
        {
            "name": "V_RTN",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "Solar Wind Velocity in RTN coord., 3 components",
            "fill": "-1.0E31",
            "units": "km/s",
            "x_label": [
                "VR (RTN)",
                "VT (RTN)",
                "VN (RTN)"
            ],
            "x_format": ".1f",
            "x_fractionDigits": "1",
            "x_cdf_FORMAT": "f8.1",
            "x_cdf_FIELDNAM": "Solar Wind Velocity (RTN)",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch",
            "size": [3]
        },
        {
            "name": "V_GSM",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "Solar Wind Velocity in GSM coord., 3 comp.",
            "fill": "-1.0E31",
            "units": "km/s",
            "x_label": [
                "VX (GSM)",
                "VY (GSM)",
                "VZ (GSM)"
            ],
            "x_format": ".1f",
            "x_fractionDigits": "1",
            "x_cdf_FORMAT": "f8.1",
            "x_cdf_FIELDNAM": "Solar Wind Velocity (GSM)",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch",
            "size": [3]
        },
        {
            "name": "SC_pos_GSE",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "ACE s/c position, 3 comp. in GSE coord.",
            "fill": "-1.0E31",
            "units": "km",
            "x_label": [
                "ACE X-GSE",
                "ACE Y-GSE",
                "ACE Z-GSE"
            ],
            "x_format": ".1f",
            "x_fractionDigits": "1",
            "x_cdf_FORMAT": "f9.1",
            "x_cdf_FIELDNAM": "S/C position in GSE",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch",
            "size": [3]
        },
        {
            "name": "SC_pos_GSM",
            "type": "double",
            "x_cdf_DataType": "CDF_REAL4",
            "description": "ACE s/c position, 3 comp. in GSM coord.",
            "fill": "-1.0E31",
            "units": "km",
            "x_label": [
                "ACE X(GSM)",
                "ACE Y(GSM)",
                "ACE Z(GSM)"
            ],
            "x_format": ".1f",
            "x_fractionDigits": "1",
            "x_cdf_FORMAT": "f9.1",
            "x_cdf_FIELDNAM": "S/C position in GSM",
            "x_cdf_DISPLAY_TYPE": "default_dimension",
            "x_cdf_DEPEND_0": "Epoch",
            "size": [3]
        }
    ],
    "x_info_author": "bw",
    "x_cdaweb_hapi_version": "20260130.0606",
    "x_info_caching": false,
    "status": {
        "code": 1200,
        "message": "OK"
    },
    "HAPI": "3.2"
}