{
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        "RightsURI": "https://spdx.org/licenses/CC0-1.0.html",
        "RightsName": "Creative Commons Zero v1.0 Universal",
        "Note": "CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions"
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    "NumericalData": {
      "ResourceID": "spase://NASA/NumericalData/ELFIN/B/EPD/L1/ion/PT0.264S",
      "NamingAuthority": "NASA",
      "ResourceType": "NumericalData",
      "ResourceHeader": {
        "ResourceName": "ELFIN B Energetic Particle Detectors for Ions (EPD-I) 0.264 s Data",
        "DOI": "https://doi.org/10.48322/0etj-j292",
        "ReleaseDate": "2025-12-04T13:29:11Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2024-06-26T12:34:56.789Z",
              "Note": "Numerical data metadata added to the Github. JMW"
            },
            {
              "ReleaseDate": "2025-02-24T12:34:56.789Z",
              "Note": "Standardized lower case usage in DOI. LFB 20250224"
            },
            {
              "ReleaseDate": "2025-03-03T13:45:36Z",
              "Note": "Modified Funding AwardNumber. ZCB"
            },
            {
              "ReleaseDate": "2025-10-02T15:11:50Z",
              "Note": "Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB"
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              "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"
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        },
        "Description": "The Electron Losses and Fields Investigation (ELFIN) mission is a space weather mission using three scientific instruments in a 3U+ CubeSat. Each spacecraft has two Energetic Particle Detectors, one for Electrons (EPD-E) and one for Ions (EPD-I), as well as a Fluxgate Magnetometer deployed at the end of a 75cm stacer boom. These science instruments were developed by UCLA staff at the Institute for Geophysics and Planetary Physics (IGPP) and the Earth, Planetary, and Space Sciences department (EPSS).",
        "Acknowledgement": "Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF for providing the Data. Open Data for Scientific Use.",
        "PublicationInfo": {
          "Authors": "Angelopoulos, V., Russell, C., Wu, J., Wilkins, C., Caron, R., Tsai, E., King, J., and Norris, A. ",
          "PublicationDate": "2024-06-19T12:34:56.789Z",
          "PublishedBy": "Space Physics Data Facility"
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        "Funding": [
          {
            "Agency": "NASA",
            "Project": "ELFIN funding",
            "AwardNumber": "NNX14AN68G"
          },
          {
            "Agency": "NSF",
            "Project": "ELFIN funding",
            "AwardNumber": "AGS-1242918"
          },
          {
            "Agency": "NSF",
            "Project": "ELFIN funding",
            "AwardNumber": "AGS-2019950"
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            "PersonID": "spase://SMWG/Person/Vassilis.Angelopoulos",
            "Role": "PrincipalInvestigator"
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            "PersonID": "spase://SMWG/Person/Cindy.Russell",
            "Role": "Scientist"
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            "PersonID": "spase://SMWG/Person/Jiashu.Wu",
            "Role": "Scientist"
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            "PersonID": "spase://SMWG/Person/Colin.Wilkins",
            "Role": "TechnicalContact"
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            "PersonID": "spase://SMWG/Person/Ryan.Caron",
            "Role": "TechnicalContact"
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            "PersonID": "spase://SMWG/Person/Ethan.Tsai",
            "Role": "ProjectManager"
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            "PersonID": "spase://SMWG/Person/James.King",
            "Role": "DataProducer"
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            "PersonID": "spase://SMWG/Person/Austin.Norris",
            "Role": "DataProducer"
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        "InformationURL": {
          "Name": "Electron Losses and Fields INvestigation-B twin satellite mission",
          "URL": "https://elfin.igpp.ucla.edu",
          "Description": "http://elfin.igpp.ucla.edu",
          "Language": "en"
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        ],
        "Format": "CDF",
        "Encoding": "None",
        "Acknowledgement": "Please acknowledge the Principal Investigator, V. Angelopoulos, NASA, and NSF. Please acknowledge the Data Providers and CDAWeb when using these Data."
      },
      "ProcessingLevel": "Calibrated",
      "InstrumentID": "spase://NASA/Instrument/ELFIN/B/EPD",
      "MeasurementType": "EnergeticParticles",
      "TemporalDescription": {
        "TimeSpan": {
          "StartDate": "2019-05-22T00:00:00.000",
          "StopDate": "2022-09-19T23:59:59.999"
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        "Cadence": "PT0.264S"
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      "ObservedRegion": [
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        "Earth.NearSurface.AuroralRegion",
        "Earth.NearSurface.Atmosphere",
        "Earth.NearSurface.Ionosphere",
        "Earth.NearSurface.PolarCap"
      ],
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          "Name": "Time since Jan 1, 2000",
          "ParameterKey": "elb_pif_time",
          "Description": "elb_pif_time, UTC, in seconds since",
          "Caveats": "Unleaped seconds",
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          "Units": "s",
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        {
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          "Set": "Time series defined by using: elb_pif_time",
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          "Description": "[ADC UNITS ONLY] L1 EPD Ion differential-directional counts, Fast Mode - all 16 energies. All energy elements are the log-mean values of the channel. ",
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          "ValidMin": "-1000000",
          "ValidMax": "1.0e+06",
          "FillValue": "NaN",
          "Particle": {
            "ParticleType": "Ion",
            "ParticleQuantity": "Counts"
          }
        },
        {
          "Name": "Central Energies for Each of the 16 EPD Ion Channels",
          "ParameterKey": "elb_pif_energies_mean",
          "Description": "Central energies for each of 16 EPD ion channels. All values are the log-mean energies of each differential channel and not summed averages.",
          "Cadence": "PT0.264S",
          "Units": "keV",
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          "ValidMax": "1.0e+06",
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        },
        {
          "Name": "Minimum Energy for Each of the 16 EPD Ion Channels",
          "ParameterKey": "elb_pif_energies_min",
          "Description": "Min energy bins associated with each of 16 EPD ion channels",
          "Cadence": "PT0.264S",
          "Units": "keV",
          "RenderingHints": {
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        },
        {
          "Name": "Maximum Energy for Each of the 16 EPD Ion Channels",
          "ParameterKey": "elb_pif_energies_max",
          "Description": "Max energy bins for each of 16 EPD ion channels",
          "Cadence": "PT0.264S",
          "Units": "keV",
          "RenderingHints": {
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          "ValidMax": "1.0e+06",
          "FillValue": "-128.0",
          "Support": {
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        },
        {
          "Name": "Sector Number",
          "Set": "Time series defined by using: elb_pif_time",
          "ParameterKey": "elb_pif_sectnum",
          "Description": "Sector number",
          "Cadence": "PT0.264S",
          "Units": "num sector",
          "RenderingHints": {
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            "AxisLabel": "Sector Number",
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          "ValidMin": "0",
          "ValidMax": "31",
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        },
        {
          "Name": "Number Spins in Sum",
          "Set": "Time series defined by using: elb_pif_time",
          "ParameterKey": "elb_pif_nspinsinsum",
          "Description": "The number spins in the sum.",
          "Cadence": "PT0.264S",
          "Units": "num spins in sum",
          "RenderingHints": {
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            "AxisLabel": "Number Spins in Sum",
            "ValueFormat": "I2"
          },
          "ValidMin": "0",
          "ValidMax": "16",
          "FillValue": "-128",
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            "SupportQuantity": "Housekeeping"
          }
        },
        {
          "Name": "Number of Spin Sectors",
          "Set": "Time series defined by using: elb_pif_time",
          "ParameterKey": "elb_pif_nsectors",
          "Description": "Number of spin sectors",
          "Cadence": "PT0.264S",
          "Units": "num sectors",
          "RenderingHints": {
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            "AxisLabel": "Number of spin sectors",
            "ValueFormat": "I2"
          },
          "ValidMin": "0",
          "ValidMax": "31",
          "FillValue": "-128",
          "Support": {
            "SupportQuantity": "Housekeeping"
          }
        },
        {
          "Name": "Spin Period",
          "Set": "Time series defined by using: elb_pif_time",
          "ParameterKey": "elb_pif_spinper",
          "Description": "spinperiod",
          "Cadence": "PT0.264S",
          "Units": "s",
          "RenderingHints": {
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          },
          "ValidMin": "0.0",
          "ValidMax": "480",
          "FillValue": "NaN",
          "Support": {
            "SupportQuantity": "SpinPeriod"
          }
        },
        {
          "Name": "Ion Counts",
          "Set": "Time series defined by using: elb_pif_time",
          "ParameterKey": "elb_pif_8",
          "Description": "---> just bottom eight energy channels",
          "Caveats": "This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: elb_pif.",
          "Cadence": "PT0.264S",
          "Units": "raw counts",
          "RenderingHints": {
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        },
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          "Set": "Time series defined by using: elb_pif_time",
          "ParameterKey": "elb_pif_top8",
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          "Caveats": "This parameter is virtual. It is calculated by calling the function ALTERNATE_VIEW with the following input parameters: elb_pif.",
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