{
  "id": "CLPS-BGM1_LEXI_L1C-PHOTONS",
  "url": "https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/clps-bgm1_lexi_l1c-photons_00000000_v01.json",
  "data-file": "./data/master/info/CLPS-BGM1_LEXI_L1C-PHOTONS.json",
  "data": {
    "clps-bgm1_lexi_l1c-photons_00000000_v01.cdf": {
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      ],
      "CDFglobalAttributes": [
        {
          "TITLE": [
            {
              "0": "LEXI> Lunar Environment Heliospheric X-ray Imager"
            }
          ]
        },
        {
          "Project": [
            {
              "0": "CLPS>Commercial Lunar Payload Services"
            }
          ]
        },
        {
          "Discipline": [
            {
              "0": "Space Physics>Magnetospheric Science"
            }
          ]
        },
        {
          "Source_name": [
            {
              "0": "BGM1>Blue Ghost Mission 1"
            }
          ]
        },
        {
          "Descriptor": [
            {
              "0": "LEXI>Lunar Environment Heliospheric X-ray Imager"
            }
          ]
        },
        {
          "Data_type": [
            {
              "0": "L1c>Level 1c Data"
            }
          ]
        },
        {
          "Data_version": [
            {
              "0": " "
            }
          ]
        },
        {
          "TEXT": [
            {
              "0": "The lunar environment heliophysics X-ray imager (LEXI) mission.BM Walsh, et al., Space Sci. Rev., 2024https://doi.org/10.1007/s11214-024-01063-4"
            }
          ]
        },
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              "0": "clps-bgm1_lexi_l1c-photons"
            }
          ]
        },
        {
          "Logical_source_description": [
            {
              "0": "Lunar Environment Heliophysics X-ray Imager (LEXI) Level 1c photon event data"
            }
          ]
        },
        {
          "PI_name": [
            {
              "0": "B. Walsh"
            }
          ]
        },
        {
          "PI_affiliation": [
            {
              "0": "Boston U."
            }
          ]
        },
        {
          "Mission_group": [
            {
              "0": "Moon"
            }
          ]
        },
        {
          "Instrument_type": [
            {
              "0": "Imaging and Remote Sensing(Magnetosphere/Earth) "
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          ]
        },
        {
          "File_naming_convention": [
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          ]
        },
        {
          "Generated_by": [
            {
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          ]
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          ]
        },
        {
          "DOI": [
            {
              "0": " "
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          ]
        }
      ],
      "CDFVariables": [
        {
          "Epoch": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_TIME_TT2000"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
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                {
                  "PadValue": "0000-01-01T00:00:00.000000000"
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              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Time"
                },
                {
                  "VALIDMIN": "2025-03-02T08:00:00.000000000"
                },
                {
                  "VALIDMAX": "2025-03-16T21:45:59.000000000"
                },
                {
                  "SCALEMIN": "2025-03-02T00:00:00.000000000"
                },
                {
                  "SCALEMAX": "2025-03-16T23:59:59.000000000"
                },
                {
                  "LABLAXIS": "Epoch"
                },
                {
                  "UNITS": "ms"
                },
                {
                  "MONOTON": "INCREASE"
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "FILLVAL": "9999-12-31T23:59:59.999999999"
                },
                {
                  "DICT_KEY": "time>Epoch"
                },
                {
                  "CATDESC": "Time, centered, in CDF Epoch"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": " "
                },
                {
                  "VAR_NOTES": " "
                },
                {
                  "TIME_BASE": "0 AD"
                }
              ]
            }
          ]
        },
        {
          "lexi_sc_eph_epoch": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_TIME_TT2000"
                },
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                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
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                {
                  "PadValue": "0000-01-01T00:00:00.000000000"
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              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Time of spacecraft ephemeris"
                },
                {
                  "VALIDMIN": "2025-03-02T08:00:00.000000000"
                },
                {
                  "VALIDMAX": "2025-03-16T21:45:59.000000000"
                },
                {
                  "SCALEMIN": "2025-03-02T00:00:00.000000000"
                },
                {
                  "SCALEMAX": "2025-03-16T23:59:59.000000000"
                },
                {
                  "LABLAXIS": "LEXI Spacecraft Ephemeris Epoch"
                },
                {
                  "UNITS": "ms"
                },
                {
                  "MONOTON": "INCREASE"
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "FILLVAL": "9999-12-31T23:59:59.999999999"
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "spacecraft_position>lexi_sc_eph_epoch"
                },
                {
                  "CATDESC": "Time corresponding to the spacecraft Ephemeris"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": "This is the time for the spacecraft ephemeris data.The extent of the ephemeris times is the same as the extent of the photon data, but the cadence of the ephemeris data is 10 minutes. One should use this variable to properly interpret other spacecraft position variables and lunar position variables as well as thje solar zenith angle."
                },
                {
                  "TIME_BASE": "0 AD"
                }
              ]
            }
          ]
        },
        {
          "Unix_time": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
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                {
                  "NumElements": 1
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                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Time in Unix Epoch"
                },
                {
                  "VALIDMIN": 1740902400.0
                },
                {
                  "VALIDMAX": 1742159748
                },
                {
                  "SCALEMIN": 1740873600.0
                },
                {
                  "SCALEMAX": 1742169599
                },
                {
                  "LABLAXIS": "Unix Time"
                },
                {
                  "UNITS": "s"
                },
                {
                  "MONOTON": "INCREASE"
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "FORMAT": "f13.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "time>Unix_time"
                },
                {
                  "CATDESC": "Time, centered, in Unix Epoch seconds"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": " "
                },
                {
                  "VAR_NOTES": " "
                }
              ]
            }
          ]
        },
        {
          "photon_x_mcp": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_FLOAT"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Photon position in detector coordinates, X"
                },
                {
                  "VALIDMIN": -5.0
                },
                {
                  "VALIDMAX": 5.0
                },
                {
                  "SCALEMIN": -5.0
                },
                {
                  "SCALEMAX": 5.0
                },
                {
                  "LABLAXIS": "X MCP"
                },
                {
                  "UNITS": "cm"
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "position>photon_x_mcp"
                },
                {
                  "CATDESC": "Photon position in detector coordinates, X, scalar"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": " "
                }
              ]
            }
          ]
        },
        {
          "photon_y_mcp": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_FLOAT"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Photon position in detector coordinates, Y"
                },
                {
                  "VALIDMIN": -5.0
                },
                {
                  "VALIDMAX": 5.0
                },
                {
                  "SCALEMIN": -5.0
                },
                {
                  "SCALEMAX": 5.0
                },
                {
                  "LABLAXIS": "Y MCP"
                },
                {
                  "UNITS": "cm"
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "position>photon_y_mcp"
                },
                {
                  "CATDESC": "Photon position in detector coordinates, Y, scalar"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": " "
                }
              ]
            }
          ]
        },
        {
          "photon_RA": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Right Ascension in J2000 frame"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 360.0
                },
                {
                  "SCALEMIN": 0.0
                },
                {
                  "SCALEMAX": 360.0
                },
                {
                  "LABLAXIS": "RA"
                },
                {
                  "UNITS": "deg"
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "position>photon_RA"
                },
                {
                  "CATDESC": "Right Ascension angle of measured photon in J2000 frame centered on LEXI, scalar."
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": " "
                }
              ]
            }
          ]
        },
        {
          "photon_Dec": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Declination in J2000 frame"
                },
                {
                  "VALIDMIN": -90.0
                },
                {
                  "VALIDMAX": 90.0
                },
                {
                  "SCALEMIN": -90.0
                },
                {
                  "SCALEMAX": 90.0
                },
                {
                  "LABLAXIS": "DEC"
                },
                {
                  "UNITS": "deg"
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "position>photon_Dec"
                },
                {
                  "CATDESC": "Declination angle of measured photon in J2000 frame centered on LEXI, scalar."
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": " "
                }
              ]
            }
          ]
        },
        {
          "photon_az": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Photon azimuth angle in the local topocentric coordinates"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 360.0
                },
                {
                  "SCALEMIN": 0.0
                },
                {
                  "SCALEMAX": 360.0
                },
                {
                  "LABLAXIS": "Azimuth"
                },
                {
                  "UNITS": "deg"
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "position>photon_az"
                },
                {
                  "CATDESC": "Azimuth angle of the measured photon in the local topocentric frame, scalar."
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": "The local topocentric frame is centered on LEXI and is defined with the azimuth angle measured from North, through East ."
                }
              ]
            }
          ]
        },
        {
          "photon_el": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Photon elevation angle in the local topocentric coordinates"
                },
                {
                  "VALIDMIN": -90.0
                },
                {
                  "VALIDMAX": 90.0
                },
                {
                  "SCALEMIN": -90.0
                },
                {
                  "SCALEMAX": 90.0
                },
                {
                  "LABLAXIS": "Elevation"
                },
                {
                  "UNITS": "deg"
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "position>photon_el"
                },
                {
                  "CATDESC": "Elevation angle of the measured photon in the local topocentric frame, scalar."
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": "The local topocentric frame is centered on LEXI and is defined with the elevation angle measured positive towards zenith with 0 degrees at the local horizon."
                }
              ]
            }
          ]
        },
        {
          "lexi_counts_per_sec": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "Counts per second"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 1000000.0
                },
                {
                  "SCALEMIN": 0.0
                },
                {
                  "SCALEMAX": 1000000.0
                },
                {
                  "LABLAXIS": "Counts/sec"
                },
                {
                  "UNITS": "counts/sec"
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "Epoch"
                },
                {
                  "DICT_KEY": "counts>lexi_counts_per_sec"
                },
                {
                  "CATDESC": "Counts per second as observed by LEXI in its field of view, scalar"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": " "
                }
              ]
            }
          ]
        },
        {
          "lexi_sc_pos_gse_x": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "x-component of LEXI spacecraft position in GSE coordinates"
                },
                {
                  "VALIDMIN": -1000000.0
                },
                {
                  "VALIDMAX": 1000000.0
                },
                {
                  "SCALEMIN": -1000000.0
                },
                {
                  "SCALEMAX": 1000000.0
                },
                {
                  "LABLAXIS": "LEXI SC GSE X"
                },
                {
                  "UNITS": "km"
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "lexi_sc_eph_epoch"
                },
                {
                  "DICT_KEY": "spacecraft_position>lexi_sc_pos_gse_x"
                },
                {
                  "CATDESC": "LEXI spacecraft position in GSE coordinates, scalar"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": "The cadence of ephemeris data is 10 minutes. One should use lexi_sc_eph_epoch to properly interpret these values."
                }
              ]
            }
          ]
        },
        {
          "lexi_sc_pos_gse_y": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "y-component of LEXI spacecraft position in GSE coordinates"
                },
                {
                  "VALIDMIN": -1000000.0
                },
                {
                  "VALIDMAX": 1000000.0
                },
                {
                  "SCALEMIN": -1000000.0
                },
                {
                  "SCALEMAX": 1000000.0
                },
                {
                  "LABLAXIS": "LEXI SC GSE Y"
                },
                {
                  "UNITS": "km"
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "lexi_sc_eph_epoch"
                },
                {
                  "DICT_KEY": "spacecraft_position>lexi_sc_pos_gse_y"
                },
                {
                  "CATDESC": "LEXI spacecraft position in GSE coordinates, scalar"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": "The cadence of ephemeris data is 10 minutes. One should use lexi_sc_eph_epoch to properly interpret these values."
                }
              ]
            }
          ]
        },
        {
          "lexi_sc_pos_gse_z": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_DOUBLE"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "FIELDNAM": "z-component of LEXI spacecraft position in GSE coordinates"
                },
                {
                  "VALIDMIN": -1000000.0
                },
                {
                  "VALIDMAX": 1000000.0
                },
                {
                  "SCALEMIN": -1000000.0
                },
                {
                  "SCALEMAX": 1000000.0
                },
                {
                  "LABLAXIS": "LEXI SC GSE Z"
                },
                {
                  "UNITS": "km"
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "FORMAT": "f10.1"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "DEPEND_0": "lexi_sc_eph_epoch"
                },
                {
                  "DICT_KEY": "spacecraft_position>lexi_sc_pos_gse_z"
                },
                {
                  "CATDESC": "LEXI spacecraft position in GSE coordinates, scalar"
                },
                {
                  "AVG_TYPE": " "
                },
                {
                  "DISPLAY_TYPE": "time_series"
                },
                {
                  "VAR_NOTES": "The cadence of ephemeris data is 10 minutes. One should use lexi_sc_eph_epoch to properly interpret these values."
                }
              ]
            }
          ]
        },
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                {
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              ]
            },
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                  "UNITS": "km"
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
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                {
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                },
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                },
                {
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                },
                {
                  "VAR_NOTES": "The cadence of ephemeris data is 10 minutes. One should use lexi_sc_eph_epoch to properly interpret these values."
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              ]
            }
          ]
        },
        {
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              ]
            }
          ]
        },
        {
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                },
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                {
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                },
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                  "DISPLAY_TYPE": "time_series"
                },
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                  "VAR_NOTES": "The cadence of ephemeris data is 10 minutes. One should use lexi_sc_eph_epoch to properly interpret these values."
                }
              ]
            }
          ]
        },
        {
          "sza": [
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                },
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                }
              ]
            },
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                },
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                },
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                },
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                },
                {
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                },
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                {
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                },
                {
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                },
                {
                  "VAR_NOTES": "The solar zenith angle is computed at the landing location. The landing site is located at Lunar Latitude and Longitude of (18.56, 61.81) degrees"
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