{
  "Spase": {
    "xmlns": "http://www.spase-group.org/data/schema",
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xsi:schemaLocation": "https://www.spase-group.org/data/schema  https://www.spase-group.org/data/schema/spase-2.7.1.xsd",
    "Version": "2.7.1",
    "MetadataRightsList": {
      "Rights": {
        "SchemeURI": "https://spdx.org/licenses/",
        "RightsIdentifierScheme": "SPDX",
        "RightsIdentifier": "CC0-1.0",
        "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"
      }
    },
    "Catalog": {
      "ResourceID": "spase://NASA/Catalog/STEREO/ICMECAT",
      "NamingAuthority": "NASA",
      "ResourceType": "Catalog",
      "ResourceHeader": {
        "ResourceName": "ICMECAT - a catalog of interplanetary coronal mass ejections",
        "ReleaseDate": "2026-02-02T13:10:25Z",
        "RevisionHistory": {
          "RevisionEvent": [
            {
              "ReleaseDate": "2025-07-09T10:37:17",
              "Note": "Only known prior ReleaseDate of the metadata"
            },
            {
              "ReleaseDate": "2026-02-02T13:10:25Z",
              "Note": "Added MetadataRightsList. Added ResourceType and NamingAuthority. Updated to 2.7.1. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. ZCB"
            }
          ]
        },
        "Description": "This is the HELIO4CAST interplanetary coronal mass ejection (ICME) catalog (ICMECAT), based on in situ magnetic field and bulk plasma observations in the heliosphere.",
        "Contact": [
          {
            "PersonID": "spase://SMWG/Person/Christian.Moestl",
            "Role": "Author"
          },
          {
            "PersonID": "spase://SMWG/Person/Eva.Weiler",
            "Role": "Author"
          },
          {
            "PersonID": "spase://SMWG/Person/Emma.E.Davies ",
            "Role": "Author"
          },
          {
            "PersonID": "spase://SMWG/Person/Olga.Y.Uritskaya",
            "Role": "MetadataContact"
          }
        ]
      },
      "AccessInformation": {
        "RepositoryID": "spase://SMWG/Repository/Helio4cast",
        "AccessURL": {
          "URL": "https://helioforecast.space/icmecat"
        },
        "Format": "HTML"
      },
      "InstrumentID": [
        "spase://SMWG/Instrument/STEREO-A/Ephemeris",
        "spase://SMWG/Instrument/STEREO-B/Ephemeris",
        "spase://SMWG/Instrument/SolarOrbiter/Ephemeris",
        "spase://SMWG/Instrument/ParkerSolarProbe/Ephemeris",
        "spase://SMWG/Instrument/BepiColombo/Ephemeris",
        "spase://SMWG/Instrument/Wind/Ephemeris",
        "spase://SMWG/Instrument/VenusExpress/ASPERA4",
        "spase://SMWG/Instrument/MESSENGER/Ephemeris",
        "spase://SMWG/Instrument/MAVEN/Ephemeris",
        "spase://SMWG/Instrument/Ulysses/Ephemeris"
      ],
      "PhenomenonType": "InterplanetaryCoronalMassEjection",
      "TimeSpan": {
        "StartDate": "1990-12-11T04:00:00",
        "StopDate": "2024-12-20T22:34:00"
      },
      "Parameter": [
        {
          "Name": "icmecat_id",
          "Description": "icmecat_id: The unique identifier for the observed ICME. unit: string.",
          "Support": {
            "SupportQuantity": "Housekeeping"
          }
        },
        {
          "Name": "sc insitu",
          "Description": "sc insitu: The name of the in situ observing spacecraft. unit: string.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": " icme_start_time",
          "Description": " icme_start_time: Shock arrival or density enhancement time, can be similar to mo_start_time. unit: UTC.",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "mo_start_time",
          "Description": "mo_start_time: Start time of the magnetic obstacle (MO), including flux ropes, flux-rope-like, and ejecta signatures. unit: UTC.",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "mo_end_time",
          "Description": "mo_end_time: End time of the magnetic obstacle. unit: UTC.",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": "mo_sc_heliodistance",
          "Description": "mo_sc_heliodistance: Heliocentric distance of the spacecraft at mo_start_time. unit: AU.",
          "Support": {
            "SupportQuantity": "Positional"
          }
        },
        {
          "Name": "mo_sc_long_heeq",
          "Description": "mo_sc_long_heeq: Heliospheric longitude of the spacecraft at mo_start_time, range [-180,180]. unit: degree (HEEQ).\n",
          "Support": {
            "SupportQuantity": "Orientation"
          }
        },
        {
          "Name": "mo_sc_lat_heeq",
          "Description": "mo_sc_lat_heeq: Heliospheric latitude of the spacecraft at mo_start_time, range [-90,90]. unit: degree (HEEQ).",
          "Support": {
            "SupportQuantity": "Orientation"
          }
        },
        {
          "Name": "icme_duration",
          "Description": "icme_duration: Duration of the interval between icme_start_time and mo_endtime. unit: hours.",
          "Support": {
            "SupportQuantity": "Temporal"
          }
        },
        {
          "Name": " icme_bmax",
          "Description": " icme_bmax: Maximum total magnetic field in the full icme interval (icme_start_time to mo_end_time). unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": " icme_bmean",
          "Description": " icme_bmean: Mean total magnetic field during the full icme interval (icme_start_time to mo_end_time). unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "icme_bstd",
          "Description": "icme_bstd: Standard deviation of the total magnetic field from icme_start_time to mo_end_time. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "icme_speed",
          "Description": "12: icme_speed_mean: Mean proton speed from icme_start_time to mo_end_time. unit: km/s.",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": " icme_speed_std",
          "Description": "icme_speed_std: Standard deviation of proton speed from icme_start_time to mo_end_time. unit: km/s.\n",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": "mo_duration",
          "Description": "mo_duration: Duration of the interval between mo_start_time and mo_endtime. unit: hours.",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": "mo_bmax",
          "Description": "mo_bmax: Maximum total magnetic field in the magnetic obstacle interval (mo_start_time to mo_end_time). unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_bmean",
          "Description": "mo_bmean: Mean total magnetic field in the magnetic obstacle. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": " mo_bstd",
          "Description": " mo_bstd: Standard deviation of the total magnetic field in the magnetic obstacle. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_bzmean",
          "Description": "mo_bzmean: Mean magnetic field Bz component in the magnetic obstacle. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_bzmin",
          "Description": "mo_bzmin: Minimum magnetic field Bz component in the magnetic obstacle. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_bzstd",
          "Description": "mo_bzstd: Standard deviation of the magnetic field Bz component in the magnetic obstacle. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_bymean",
          "Description": "mo_bymean: Mean magnetic field By component in the magnetic obstacle. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_bystd",
          "Description": ": mo_bystd: Standard deviation of the magnetic field By component in the magnetic obstacle. unit: nT.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_speed_mean",
          "Description": "mo_speed_mean: Mean proton speed from mo_start_time to mo_end_time. unit: km/s.",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": " mo_speed_std",
          "Description": " mo_speed_std: Standard deviation of proton speed from mo_start_time to mo_end_time. unit: km/s.",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": "mo_expansion_speed",
          "Description": "mo_expansion_speed: Difference between proton speed at mo_start_time to proton speed at mo_end_time. unit: km/s.",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": "mo_pdyn_mean",
          "Description": "mo_pdyn_mean: Mean proton dynamic pressure from mo_start_time to mo_start_time. unit: nPa.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": " mo_pdyn_std",
          "Description": " mo_pdyn_std: Standard deviation of proton dynamic pressure from mo_start_time to mo_start_time. unit: nPa.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_density_mean",
          "Description": "mo_density_mean: Mean proton density from mo_start_time to mo_start_time. unit: cm^-3.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_density_std",
          "Description": "mo_density_std: Standard deviation of proton density from mo_start_time to mo_start_time. unit: cm^-3",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_temperature_mean",
          "Description": "mo_temperature_mean: Mean proton temperature from mo_start_time to mo_start_time. unit: K.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "mo_temperature_std",
          "Description": "mo_temperature_std: Standard deviation of proton temperature from mo_start_time to mo_end_time. unit: K.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "sheath_speed_mean",
          "Description": "sheath_speed_mean: Mean proton speed from icme_start_time to mo_start_time, NaN if these times are similar. unit: km/s.",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": "sheath_speed_std",
          "Description": "sheath_speed_std: Standard deviation of proton speed from icme_start_time to mo_start_time, NaN if these times are similar. unit: km/s.",
          "Support": {
            "SupportQuantity": "Velocity"
          }
        },
        {
          "Name": "sheath_density_mean",
          "Description": "sheath_density_mean: Mean proton density from icme_start_time to mo_start_time, NaN if these times are similar. unit: cm^-3.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "sheath_density_std",
          "Description": "sheath_density_std: Standard deviation of proton density from icme_start_time to mo_start_time, NaN if these times are similar. unit: cm^-3.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "sheath_pdyn_mean",
          "Description": "sheath_pdyn_mean: Mean proton dynamic pressure, from icme_start_time to mo_start_time, NaN if these times are similar. unit: nPa.",
          "Support": {
            "SupportQuantity": "Other"
          }
        },
        {
          "Name": "sheath_pdyn_std",
          "Description": "sheath_pdyn_std: Standard deviation of proton dynamic pressure, from icme_start_time to mo_start_time, NaN if these times are similar. unit: nPa.",
          "Support": {
            "SupportQuantity": "Other"
          }
        }
      ]
    }
  }
}