{ "id": "THB_L2_SCM", "url": "http://hpde.io/NASA/NumericalData/THEMIS/B/SCM/PT0.125S", "data-file": "./data/spase_hpde_io/info/THB_L2_SCM.json", "data": { "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" } }, "NumericalData": { "ResourceID": "spase://NASA/NumericalData/THEMIS/B/SCM/PT0.125S", "NamingAuthority": "NASA", "ResourceType": "NumericalData", "ResourceHeader": { "ResourceName": "THEMIS-B: Search Coil Magnetometer 1/8s, 1/128s and 1/8192s Data", "DOI": "https://doi.org/10.48322/rwch-kk19", "ReleaseDate": "2025-12-04T13:31:43Z", "RevisionHistory": { "RevisionEvent": [ { "ReleaseDate": "2021-04-27T15:38:11", "Note": "Only known prior ReleaseDate of the metadata" }, { "ReleaseDate": "2023-07-30T12:34:56.789", "Note": "Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727" }, { "ReleaseDate": "2025-10-03T11:23:57Z", "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" }, { "ReleaseDate": "2025-10-21T12:34:56.789", "Note": "Revised ObservedRegion. JMW" }, { "ReleaseDate": "2025-12-04T13:31:43Z", "Note": "Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB" } ] }, "Description": "THEMIS-B: Search Coil Magnetometer (SCM) magnetic field measurements. Includes FAST SURVEY, PARTICLE BURST and WAVE BURST data. FAST SURVEY (SCF): 1/8 second time resolution. PARTICLE BURST (SCP): 1/128 second time resolution; only short bursts of data. WAVE BURST (SCW): 1/8192 second time resolution; only short bursts of data. Sensor and electronics design provided by LPP, Roux and Le Contel. SCM Telemetry Modes (Only first 3 apply to level 2 SCM products): +-------------------------------------------------------------------------------------------------------------------------+ Fast Survey (scf) Waveform data for the 3 SCM components; sampling rate between 2 and 256 S/s, nominal value is 8. Particle Burst (scp) Waveform data nominally at 128 S/s. Wave Burst (scw) Waveform data nominally at 8192 S/s. Filter Bank (fbk)^ Mean signal value over 6 frequency bands (4-2 kHz, 1-0.5 kHz, 256-128 Hz, 64-32 Hz, 16-8 Hz. Particle Burst Spectra (ffp)^^ Compressed FFT spectra in 16, 32, or 64 frequency bins; sampling between 1/4 to 8 S/s. Wave Burst Spectra (ffw)^^ Compressed FFT spectra in 16, 32, or 64 frequency bins; sampling between 1/4 to 8 S/s. +-------------------------------------------------------------------------------------------------------------------------+ * ^Only two available inputs between all 3 SCM and 12 EFI data signals. * ^^Only four available inputs between 3 SCM and 16 other data signals.", "Acknowledgement": "NASA Contract NAS5-02099, V. Angelopoulos for use of data from the THEMIS Mission; also A. Roux and CETP for their work on the SCM.", "PublicationInfo": { "Authors": "Angelopoulos, Vassilis; Roux, Alain", "PublicationDate": "2023-01-01T00:00:00", "PublishedBy": "Space Physics Data Facility; University of California, Berkeley" }, "Contact": [ { "PersonID": "spase://SMWG/Person/Vassilis.Angelopoulos", "Role": "PrincipalInvestigator" }, { "PersonID": "spase://SMWG/Person/Alain.Roux", "Role": "PrincipalInvestigator" }, { "PersonID": "spase://SMWG/Person/Lee.Frost.Bargatze", "Role": "MetadataContact" } ], "InformationURL": [ { "Name": "THEMIS Home Page", "URL": "http://themis.ssl.berkeley.edu/index.shtml", "Description": "The THEMIS project home page." }, { "Name": "THEMIS Data Policy and Credits", "URL": "http://themis.ssl.berkeley.edu/roadrules.shtml", "Description": "Details on THEMIS data policy and giving proper credits in publications." } ], "PriorID": [ "spase://VMO/NumericalData/THEMIS/B/SCM/PT0.125S", "spase://VSPO/NumericalData/THEMIS/B/SCM/PT0.125S" ] }, "AccessInformation": [ { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb", "Availability": "Online", "AccessRights": "Open", "RightsList": { "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 NASA Heliophysics data products" } }, "AccessURL": { "Name": "FTPS from SPDF (not with most browsers)", "URL": "ftps://spdf.gsfc.nasa.gov/pub/data/themis/thb/l2/scm/", "Description": "NASA/GSFC SPDF ftp access to the data." }, "Format": "CDF", "Encoding": "None" }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb", "Availability": "Online", "AccessRights": "Open", "RightsList": { "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 NASA Heliophysics data products" } }, "AccessURL": { "Name": "HTTPS from SPDF", "URL": "https://spdf.gsfc.nasa.gov/pub/data/themis/thb/l2/scm/", "Description": "In CDF via HTTP from SPDF" }, "Format": "CDF", "Encoding": "None" }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb", "Availability": "Online", "AccessRights": "Open", "RightsList": { "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 NASA Heliophysics data products" } }, "AccessURL": { "Name": "CDAWeb", "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=THB_L2_SCM&index=sp_phys", "ProductKey": "THB_L2_SCM", "Description": "Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb" }, "Format": "CDF", "Encoding": "None" }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb", "Availability": "Online", "AccessRights": "Open", "RightsList": { "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 NASA Heliophysics data products" } }, "AccessURL": { "Name": "CDAWeb HAPI Server", "URL": "https://cdaweb.gsfc.nasa.gov/hapi", "Style": "HAPI", "ProductKey": [ "THB_L2_SCM@0", "THB_L2_SCM@1", "THB_L2_SCM@2" ], "Description": "Web Service to this product using the HAPI interface." }, "Format": "CSV" }, { "RepositoryID": "spase://SMWG/Repository/UCB/THEMIS", "Availability": "Online", "AccessRights": "Open", "AccessURL": { "Name": "THEMIS L2 SCM data at University of California, Berkeley", "URL": "http://themis.ssl.berkeley.edu/data/themis/thb/l2/scm/", "Description": "CDF data files for download, organized by date." }, "Format": "CDF", "Encoding": "None" } ], "ProcessingLevel": "Calibrated", "ProviderProcessingLevel": "Level 2", "ProviderVersion": "v1", "InstrumentID": "spase://SMWG/Instrument/THEMIS/B/SCM", "MeasurementType": "MagneticField", "TemporalDescription": { "TimeSpan": { "StartDate": "2007-02-24T00:00:00Z", "RelativeStopDate": "-P7D" }, "Cadence": "PT0.125S" }, "ObservedRegion": [ "Heliosphere.NearEarth", "Earth.Magnetosphere.Magnetotail", "Earth.Magnetosphere.Main", "Earth.Magnetosheath", "Earth.Magnetosphere", "Earth.Magnetosphere.RadiationBelt" ], "Caveats": "See THEMIS website for caveats", "Parameter": { "thb_scf_btotal": { "Name": "Fast-Survey Magnetic Field Magnitude", "ParameterKey": "thb_scf_btotal", "Description": "Total B-field magnitude from SCF data (fast-survey, 1/8 sec time resolution).", "Cadence": "PT0.125S", "Units": "nT", "UnitsConversion": "1e-9>T", "ValidMin": "0.0", "ValidMax": "25000.0", "FillValue": "NaN", "Field": { "Qualifier": [ "Total", "Magnitude" ], "FieldQuantity": "Magnetic" } }, "thb_scf_gse": { "Name": "Fast-Survey Magnetic Field Vector (GSE)", "ParameterKey": "thb_scf_gse", "Description": "B-Field vector from fast survey mode (1/8 sec time resolution) in GSE Coordinates.", "Cadence": "PT0.125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "GSE" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCF-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCF-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCF-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scf_gsm": { "Name": "Fast-Survey Magnetic Field Vector (GSM)", "ParameterKey": "thb_scf_gsm", "Description": "B-Field vector from fast survey mode (1/8 sec time resolution) in GSM Coordinates.", "Cadence": "PT0.125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "GSM" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCF-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCF-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCF-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scf_dsl": { "Name": "Fast-Survey Magnetic Field Vector (DSL)", "ParameterKey": "thb_scf_dsl", "Description": "B-Field vector from fast survey mode (1/8 sec time resolution) in DSL (despun spacecraft) coordinates.", "Cadence": "PT0.125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "SR2" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCF-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCF-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCF-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scf_time": { "Name": "Fast-Survey Time", "ParameterKey": "thb_scf_time", "Description": "Fast-survey mode data timestamp, UTC, in seconds since 01-Jan-1970 00:00:00.", "Caveats": "Not including leap seconds", "Cadence": "PT0.125S", "Units": "s", "ValidMin": "0.0", "ValidMax": "5.0E9", "FillValue": "NaN", "Support": { "SupportQuantity": "Temporal" } }, "thb_scp_btotal": { "Name": "Particle-Burst Magnetic Field Magnitude", "ParameterKey": "thb_scp_btotal", "Description": "Total B-Field magnitude from SCP data(particle burst, 1/128 second time resolution).", "Units": "nT", "UnitsConversion": "1e-9>T", "ValidMin": "0.0", "ValidMax": "25000.0", "FillValue": "NaN", "Field": { "Qualifier": [ "Total", "Magnitude" ], "FieldQuantity": "Magnetic" } }, "thb_scp_gse": { "Name": "Particle-Burst Magnetic Field Vector (GSE)", "ParameterKey": "thb_scp_gse", "Description": "B-Field vector from particle burst mode (1/128 second time resolution) in GSE coordinates.", "Cadence": "PT0.0078125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "GSE" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCP-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCP-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCP-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scp_gsm": { "Name": "Particle-Burst Magnetic Field Vector (GSM)", "ParameterKey": "thb_scp_gsm", "Description": "B-Field vector from particle burst mode (1/128 second time resolution) in GSM coordinates.", "Cadence": "PT0.0078125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "GSM" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCP-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCP-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCP-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scp_dsl": { "Name": "Particle-Burst Magnetic Field Vector (DSL)", "ParameterKey": "thb_scp_dsl", "Description": "B-Field vector from particle burst mode (1/128 second time resolution) in DSL (despun spacecraft) coordinates.", "Cadence": "PT0.0078125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "SR2" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCP-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCP-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCP-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scp_time": { "Name": "Particle-Burst Time", "ParameterKey": "thb_scp_time", "Description": "Particle Burst mode timestamp (1/128 second resolution), UTC, in seconds since 01-Jan-1970 00:00:00.", "Caveats": "Not including leap seconds", "Cadence": "PT0.0078125S", "Units": "s", "ValidMin": "0.0", "ValidMax": "5.0E9", "FillValue": "NaN", "Support": { "SupportQuantity": "Temporal" } }, "thb_scw_btotal": { "Name": "Wave-Burst Magnetic field Magnitude", "ParameterKey": "thb_scw_btotal", "Description": "Total B-Field magnitude from SCW data(wave burst mode, 1/8192 second time resolution).", "Cadence": "PT0.0001220703125S", "Units": "nT", "UnitsConversion": "1e-9>T", "ValidMin": "0.0", "ValidMax": "25000.0", "FillValue": "NaN", "Field": { "Qualifier": [ "Total", "Magnitude" ], "FieldQuantity": "Magnetic" } }, "thb_scw_gse": { "Name": "Wave-Burst Magnetic Field Vector (GSE)", "ParameterKey": "thb_scw_gse", "Description": "B-Field vector from wave burst mode(1/8192 second time resolution) in GSE coordinates.", "Cadence": "PT0.0001220703125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "GSE" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCW-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCW-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCW-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scw_gsm": { "Name": "Wave-Burst Magnetic Field Vector (GSM)", "ParameterKey": "thb_scw_gsm", "Description": "B-Field vector from wave burst mode(1/8192 second time resolution) in GSM coordinates.", "Cadence": "PT0.0001220703125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "GSM" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCW-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCW-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCW-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scw_dsl": { "Name": "Wave-Burst Magnetic Field Vector (DSL)", "ParameterKey": "thb_scw_dsl", "Description": "B-Field vector from wave burst mode(1/8192 second time resolution) in DSL (despun spacecraft) coordinates.", "Cadence": "PT0.0001220703125S", "Units": "nT", "UnitsConversion": "1e-9>T", "CoordinateSystem": { "CoordinateRepresentation": "Cartesian", "CoordinateSystemName": "SR2" }, "Structure": { "Size": "3", "Element": [ { "Name": "Bx SCW-B", "Qualifier": "Component.I", "Index": "1", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "By SCW-B", "Qualifier": "Component.J", "Index": "2", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" }, { "Name": "Bz SCW-B", "Qualifier": "Component.K", "Index": "3", "ValidMin": "-25000.0", "ValidMax": "25000.0", "FillValue": "NaN" } ] }, "Field": { "Qualifier": "Vector", "FieldQuantity": "Magnetic" } }, "thb_scw_time": { "Name": "Wave-Burst Time", "ParameterKey": "thb_scw_time", "Description": "Wave Burst mode timestamp (1/8192 second resolution), UTC, in seconds since 01-Jan-1970 00:00:00", "Caveats": "Not including leap seconds", "Cadence": "PT0.0001220703125S", "Units": "s", "ValidMin": "0.0", "ValidMax": "5.0E9", "FillValue": "NaN", "Support": { "SupportQuantity": "Temporal" } } } } } } }