{
  "id": "IMAP_SWAPI_L3B_COMBINED",
  "url": "https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/imap_swapi_l3b_combined_00000000_v01.json",
  "data-file": "./data/master/info/IMAP_SWAPI_L3B_COMBINED.json",
  "data": {
    "imap_swapi_l3b_combined_00000000_v01.cdf": {
      "CDFFileInfo": [
        {
          "FileVersion": "3.9.2"
        },
        {
          "Format": "SINGLE"
        },
        {
          "Majority": "COLUMN"
        },
        {
          "Encoding": "IBMPC"
        }
      ],
      "CDFglobalAttributes": [
        {
          "Acknowledgement": [
            {
              "0": "Users should acknowledge the sources of data used in all publications, presentations, and reports using an appropriate DOI. Appropriate acknowledgement to institutions, personnel, and funding agencies should be given, including acknowledging the IMAP Mission Principal Investigator, Prof. David J. McComas of Princeton University (Contract #80GSFC19C0027). IMAP Rules-of-the-Road for data usage can be found in the IMAP CMAD. "
            }
          ]
        },
        {
          "Data_level": [
            {
              "0": "3b"
            }
          ]
        },
        {
          "Data_type": [
            {
              "0": "L3B_COMBINED>Level-3 Science data"
            }
          ]
        },
        {
          "Data_version": [
            {
              "0": " "
            }
          ]
        },
        {
          "Descriptor": [
            {
              "0": "SWAPI>The Solar Wind and Pickup Ion"
            }
          ]
        },
        {
          "Discipline": [
            {
              "0": "Solar Physics>Heliospheric Physics"
            }
          ]
        },
        {
          "File_naming_convention": [
            {
              "0": "source_descriptor_datatype_yyyyMMdd_vMMM.mmmm"
            }
          ]
        },
        {
          "Generation_date": [
            {
              "0": " "
            }
          ]
        },
        {
          "HTTP_LINK": [
            {
              "0": "https://imap.princeton.edu/"
            },
            {
              "1": "https://link.springer.com/collections/djacjcecei"
            },
            {
              "2": "https://spdf.gsfc.nasa.gov/pub/data/imap/documents/cmad/"
            }
          ]
        },
        {
          "Instrument_type": [
            {
              "0": "Particles (space)"
            }
          ]
        },
        {
          "LINK_TITLE": [
            {
              "0": "IMAP The Interstellar Mapping and Acceleration Probe"
            },
            {
              "1": "IMAP Mission and Science Instruments Special Paper Collection"
            },
            {
              "2": "IMAP Calibration and Measurement Algorithms Document (CMAD)"
            }
          ]
        },
        {
          "Logical_file_id": [
            {
              "0": " "
            }
          ]
        },
        {
          "Logical_source": [
            {
              "0": "imap_swapi_l3b_combined"
            }
          ]
        },
        {
          "Logical_source_description": [
            {
              "0": "SWAPI Instrument Combined VDF and Differential Flux"
            }
          ]
        },
        {
          "Mission_group": [
            {
              "0": "IMAP"
            }
          ]
        },
        {
          "Parents": [
            {
              "0": " "
            }
          ]
        },
        {
          "PI_affiliation": [
            {
              "0": "Princeton University"
            }
          ]
        },
        {
          "PI_name": [
            {
              "0": "Prof. David J. McComas"
            }
          ]
        },
        {
          "Project": [
            {
              "0": "STP>Solar Terrestrial Probes"
            }
          ]
        },
        {
          "Rules_of_use": [
            {
              "0": "All IMAP data products are publicly released and citable for use in publications. Please consult the IMAP team publications and personnel for further details on production, processing, and usage of these data. "
            }
          ]
        },
        {
          "Source_name": [
            {
              "0": "IMAP>Interstellar Mapping and Acceleration Probe"
            }
          ]
        },
        {
          "TEXT": [
            {
              "0": "The Solar Wind and Pickup Ion (SWAPI) instrument onboard the Interstellar Mapping and Acceleration Probe (IMAP) is a top-hat electrostatic analyzer designed to measure energy-per-charge distributions of solar wind protons (H+), alpha particles (He++), and interstellar pickup ions (PUIs; combined H+ and He+) across a range of 0.1 to 20 keV/q. See https://imap.princeton.edu/spacecraft/instruments/solar-wind-and-pickup-ions-swapi for more details. "
            }
          ]
        },
        {
          "ground_software_version": [
            {
              "0": " "
            }
          ]
        },
        {
          "LINK_TEXT": [
            {
              "0": " "
            },
            {
              "1": " "
            },
            {
              "2": " "
            }
          ]
        }
      ],
      "CDFVariables": [
        {
          "epoch": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_TIME_TT2000"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": "0000-01-01T00:00:00.000000000"
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "TIME_BASE": "J2000"
                },
                {
                  "TIME_SCALE": "TT"
                },
                {
                  "REFERENCE_POSITION": "Rotating Earth Geoid"
                },
                {
                  "CATDESC": "Time, number of nanoseconds since J2000 with leap seconds included"
                },
                {
                  "DELTA_PLUS_VAR": "epoch_delta"
                },
                {
                  "DELTA_MINUS_VAR": "epoch_delta"
                },
                {
                  "FIELDNAM": "Epoch"
                },
                {
                  "FILLVAL": "9999-12-31T23:59:59.999999999"
                },
                {
                  "FORMAT": " "
                },
                {
                  "LABLAXIS": "Epoch"
                },
                {
                  "MONOTON": "INCREASE"
                },
                {
                  "SCALETYP": "linear"
                },
                {
                  "SI_CONVERSION": "1e-9>seconds"
                },
                {
                  "UNITS": "ns"
                },
                {
                  "VALIDMIN": "2010-01-01T00:00:00.000000000"
                },
                {
                  "VALIDMAX": "2099-12-31T00:00:00.000000000"
                },
                {
                  "VAR_TYPE": "support_data"
                }
              ]
            }
          ]
        },
        {
          "epoch_delta": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_INT8"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 0
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "PadValue": -9223372036854775807
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "CATDESC": "Epoch delta"
                },
                {
                  "FIELDNAM": "Epoch Delta"
                },
                {
                  "FILLVAL": -9223372036854775808
                },
                {
                  "FORMAT": "I19"
                },
                {
                  "LABLAXIS": "Epoch delta"
                },
                {
                  "SCALETYP": "linear"
                },
                {
                  "UNITS": "ns"
                },
                {
                  "VALIDMIN": 0
                },
                {
                  "VALIDMAX": 600000000000
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "DEPEND_0": "epoch"
                }
              ]
            }
          ]
        },
        {
          "combined_energy": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_REAL4"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 1
                },
                {
                  "DimSizes": [
                    62
                  ]
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "DimVariances": [
                    "VARY"
                  ]
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "CATDESC": "Combined solar wind energy"
                },
                {
                  "DELTA_PLUS_VAR": "combined_energy_stat_uncert_plus"
                },
                {
                  "DELTA_MINUS_VAR": "combined_energy_stat_uncert_minus"
                },
                {
                  "FIELDNAM": "Combined Solar Wind Energy"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "FORMAT": "F19.3"
                },
                {
                  "LABLAXIS": "Combined SW energy"
                },
                {
                  "SCALETYP": "log"
                },
                {
                  "UNITS": "eV/q"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 21500.0
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "DEPEND_0": "epoch"
                },
                {
                  "SCALEMIN": 100.0
                },
                {
                  "SCALEMAX": 20000.0
                }
              ]
            }
          ]
        },
        {
          "combined_energy_stat_uncert_minus": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_REAL4"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 1
                },
                {
                  "DimSizes": [
                    62
                  ]
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "DimVariances": [
                    "VARY"
                  ]
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "CATDESC": "Combined solar wind energy uncertainty minus"
                },
                {
                  "FIELDNAM": "Combined Solar Wind Energy Uncertainty Minus"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "FORMAT": "F19.3"
                },
                {
                  "LABLAXIS": "Combined SW energy uncertainty minus"
                },
                {
                  "UNITS": "eV/q"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 2000.0
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "DEPEND_0": "epoch"
                }
              ]
            }
          ]
        },
        {
          "combined_energy_stat_uncert_plus": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_REAL4"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 1
                },
                {
                  "DimSizes": [
                    62
                  ]
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "DimVariances": [
                    "VARY"
                  ]
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "CATDESC": "Combined solar wind energy uncertainty plus"
                },
                {
                  "FIELDNAM": "Combined Solar Wind Energy Uncertainty Plus"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "FORMAT": "F19.3"
                },
                {
                  "LABLAXIS": "Combined energy SW uncertainty plus"
                },
                {
                  "UNITS": "eV/q"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 2000.0
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "DEPEND_0": "epoch"
                }
              ]
            }
          ]
        },
        {
          "combined_differential_flux": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_REAL4"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 1
                },
                {
                  "DimSizes": [
                    62
                  ]
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "DimVariances": [
                    "VARY"
                  ]
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "CATDESC": "Combined differential flux"
                },
                {
                  "DELTA_PLUS_VAR": "combined_differential_flux_stat_uncert"
                },
                {
                  "DELTA_MINUS_VAR": "combined_differential_flux_stat_uncert"
                },
                {
                  "FIELDNAM": "Combined Differential Flux"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "FORMAT": "F19.3"
                },
                {
                  "LABLAXIS": "Combined differential flux"
                },
                {
                  "SCALETYP": "log"
                },
                {
                  "UNITS": "cm^-2 s^-1 sr^-1 (eV/q)^-1"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 99999997952
                },
                {
                  "VAR_TYPE": "data"
                },
                {
                  "DEPEND_0": "epoch"
                },
                {
                  "SCALEMIN": 10.0
                },
                {
                  "SCALEMAX": 150000000.0
                },
                {
                  "DEPEND_1": "combined_energy"
                },
                {
                  "DISPLAY_TYPE": "spectrogram"
                },
                {
                  "LABL_PTR_1": "combined_energy_label"
                },
                {
                  "VARIABLE_PURPOSE": "PRIMARY_VAR,SUMMARY"
                }
              ]
            }
          ]
        },
        {
          "combined_differential_flux_stat_uncert": [
            {
              "VarDescription": [
                {
                  "DataType": "CDF_REAL4"
                },
                {
                  "NumElements": 1
                },
                {
                  "NumDims": 1
                },
                {
                  "DimSizes": [
                    62
                  ]
                },
                {
                  "RecVariance": "VARY"
                },
                {
                  "DimVariances": [
                    "VARY"
                  ]
                },
                {
                  "PadValue": -1e+30
                }
              ]
            },
            {
              "VarAttributes": [
                {
                  "CATDESC": "Combined differential flux uncertainty"
                },
                {
                  "FIELDNAM": "Combined Differential Flux Uncertainty"
                },
                {
                  "FILLVAL": -1e+31
                },
                {
                  "FORMAT": "F19.3"
                },
                {
                  "LABLAXIS": "Combined differential flux uncertainty"
                },
                {
                  "UNITS": "cm^-2 s^-1 sr^-1 (eV/q)^-1"
                },
                {
                  "VALIDMIN": 0.0
                },
                {
                  "VALIDMAX": 100000000.0
                },
                {
                  "VAR_TYPE": "support_data"
                },
                {
                  "DEPEND_0": "epoch"
                },
                {
                  "DEPEND_1": "combined_energy"
                },
                {
                  "LABL_PTR_1": "combined_energy_label"
                }
              ]
            }
          ]
        }
      ]
    }
  },
  "request": {
    "url": "https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/imap_swapi_l3b_combined_00000000_v01.json",
    "log": "\n  status_code: 200\n  from_cache:  False\n  revalidated: False\n  is_expired:  False\n  timeout:     30\n  max_retries: 5\n  user headers: None\n  cached_session_options: None\n  cache_key:   7420230f73d9891e\n  cache_file:  ./data/CachedSession/master/7420230f73d9891e.json\n  cache_file_stat: \n    st_atime: Fri, 04 Sep 2026 01:36:58.382421 GMT\n    st_mtime: Fri, 04 Sep 2026 15:11:24.757563 GMT\n    st_ctime: Fri, 04 Sep 2026 15:11:24.757563 GMT\n  Request Headers:\n    User-Agent: python-requests/2.25.1\n    Accept-Encoding: gzip, deflate\n    Accept: */*\n    Connection: keep-alive\n    If-None-Match: \"1b6c-65a93f65683a6\"\n    If-Modified-Since: Thu, 03 Sep 2026 13:16:39 GMT\n  Response Headers:\n    Date: Fri, 04 Sep 2026 15:11:24 GMT\n    Server: Apache\n    Strict-Transport-Security: max-age=63072000; includeSubdomains; preload\n    Content-Security-Policy: frame-ancestors 'self' *.gsfc.nasa.gov;\n    Access-Control-Allow-Origin: *\n    Access-Control-Allow-Methods: GET\n    Access-Control-Allow-Headers: Content-Type\n    Last-Modified: Fri, 04 Sep 2026 12:49:44 GMT\n    ETag: \"1b6c-65aa7b3e066ee\"\n    Accept-Ranges: bytes\n    Content-Length: 7020\n    Keep-Alive: timeout=2, max=40\n    Connection: Keep-Alive\n    Content-Type: application/json",
    "diff": null,
    "file": "./data/CachedSession/master/7420230f73d9891e.json",
    "file-header": {
      "Date": "Fri, 04 Sep 2026 15:11:24 GMT",
      "Server": "Apache",
      "Strict-Transport-Security": "max-age=63072000; includeSubdomains; preload",
      "Content-Security-Policy": "frame-ancestors 'self' *.gsfc.nasa.gov;",
      "Access-Control-Allow-Origin": "*",
      "Access-Control-Allow-Methods": "GET",
      "Access-Control-Allow-Headers": "Content-Type",
      "Last-Modified": "Fri, 04 Sep 2026 12:49:44 GMT",
      "ETag": "\"1b6c-65aa7b3e066ee\"",
      "Accept-Ranges": "bytes",
      "Content-Length": "7020",
      "Keep-Alive": "timeout=2, max=40",
      "Connection": "Keep-Alive",
      "Content-Type": "application/json"
    }
  }
}