Name: THEMIS-D (P3), Electric Field Instrument (EFI) Spacecraft measured Electric Field
Creator: Angelopoulos, Vassilis; Bonnell, John, W.; Mozer, Forrest, S.
Published: 2023-01-01
License: https://spdx.org/licenses/CC0-1.0.html

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} function getVersionedBibTeX(bibtex) { /* Add version field as suggested by August (Gus) Muench, Journals Data Editor, American Astronomical Society (email dated 7/7/25) */ const accessVersion = ", version={Accessed on " + currentIsoDateStr + "}"; const modifiedBibtex = bibtex.substring(0, bibtex.lastIndexOf("}")) + accessVersion + "}"; return modifiedBibtex; } function getBlob(text) { return new Blob([text], { type: "text/plain"}); } function clipboardAlert(text) { alert(text + "\nCopied to clipboard"); } function clipCitation(doi) { document.body.style.cursor = 'wait'; let url = "https://citation.doi.org/format?doi=" + doi.replace("https://doi.org/", "") + String.fromCodePoint(38) + "style=bibtex" + String.fromCodePoint(38) + "lang=en-US"; const text = new ClipboardItem({ "text/plain": fetch(url) .then(getResponseText) .then(getVersionedBibTeX) .then(getBlob) }); navigator.clipboard.write([text]); text.getType("text/plain") .then(getResponseText) .then(clipboardAlert); } function toggle_usa_banner_details() { const details = document.getElementById("usa-banner-details"); const indicator = document.getElementById("usa-banner-indicator"); if (details.style.display === "none") { details.style.display = "block"; indicator.textContent = "^"; } else { details.style.display = "none"; indicator.textContent = "v"; } } const monthName=new Array("January","February","March","April","May","June","July","August","September","October","November","December"); let currentDate = new Date(); let currentIsoDateStr = currentDate.toISOString().substring(0, 10); let currentDateStr = currentDate.getFullYear() + '-' + monthName[currentDate.getMonth()] + '-' + currentDate.getDate(); Data Access FTPS from SPDF (not with most browsers) HTTPS from SPDF CDAWeb WebService: CDAWeb Programmatic Data Access HAPI: CDAWeb HAPI Server THEMIS EFI data at University of California, Berkeley THEMIS-D (P3), Electric Field Instrument (EFI) Spacecraft measured Electric Field var authors='Angelopoulos, Vassilis; Bonnell, John, W.; Mozer, Forrest, S.'; document.write(authors); (2023). THEMIS-D (P3), Electric Field Instrument (EFI) Spacecraft measured Electric Field. [Data set]. Space Physics Data Facility; University of California, Berkeley. https://doi.org/10.48322/5bb0-by57. Accessed on document.write(currentDateStr);. Note: Proper references, including Copy BibTeX Citation or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication. ResourceID spase://NASA/NumericalData/THEMIS/D/EFI/PT3S Description THEMIS-D: Electric Field Instrument, EFI, Electric Field Measurements. The L2 Product is a 3D Estimate of the perpnedicular Electric Field, Eperp, derived from the Spin Plane E-Field Measurements assuming E ⋅ B = 0, using relevant Flux-Gate Magnetometer, FGM, Data. This Data Product includes Spin-Averaged, and Fast Survey Field Data. The Spin-Averaged Data, EFS_DOT0, has approximately 3 s Time Resolution. Fast Survey, EFF_DOT0, Data has 0.125 s Time Resolution. Metadata Rights CC0-1.0: Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license. View XML | Edit Details Version:2.7.1 NumericalData ResourceID spase://NASA/NumericalData/THEMIS/D/EFI/PT3S NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName THEMIS-D (P3), Electric Field Instrument (EFI) Spacecraft measured Electric Field DOI https://doi.org/10.48322/5bb0-by57 ReleaseDate 2026-06-26 13:28:55Z RevisionHistory RevisionEvent ReleaseDate 2021-04-27 15:38:11Z Note Only known prior ReleaseDate of the metadata RevisionEvent ReleaseDate 2023-07-30 12:34:56.789Z Note Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727 RevisionEvent ReleaseDate 2025-10-03 11:23:58Z 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 RevisionEvent ReleaseDate 2025-12-04 13:31:45Z Note Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB RevisionEvent ReleaseDate 2026-06-26 13:28:55Z Note Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate, TemporalDescription:TimeSpan:StartDate. ZCB Description THEMIS-D: Electric Field Instrument, EFI, Electric Field Measurements. The L2 Product is a 3D Estimate of the perpnedicular Electric Field, Eperp, derived from the Spin Plane E-Field Measurements assuming E ⋅ B = 0, using relevant Flux-Gate Magnetometer, FGM, Data. This Data Product includes Spin-Averaged, and Fast Survey Field Data. The Spin-Averaged Data, EFS_DOT0, has approximately 3 s Time Resolution. Fast Survey, EFF_DOT0, Data has 0.125 s Time Resolution. Acknowledgement V. Angelopoulos, J. Bonnell, F. Mozer, NASA Contract NAS5-02099. Open Data for Scientific Use. PublicationInfo Authors Angelopoulos, Vassilis; Bonnell, John, W.; Mozer, Forrest, S. PublicationDate 2023-01-01 00:00:00Z PublishedBy Space Physics Data Facility; University of California, Berkeley Contacts Role Person StartDate StopDate Note 1. PrincipalInvestigator spase://SMWG/Person/Vassilis.Angelopoulos 2. PrincipalInvestigator spase://SMWG/Person/John.W.Bonnell 3. PrincipalInvestigator spase://SMWG/Person/Forrest.S.Mozer 4. MetadataContact spase://SMWG/Person/Robert.E.McGuire 5. MetadataContact spase://SMWG/Person/Lee.Frost.Bargatze InformationURL Name THEMIS EFI Instrument Description URL http://themis.ssl.berkeley.edu/instrument_efi.shtml Description THEMIS Electric Field Instrument, EFI, Instrument Description with Links to Information concerning Data Modes, Data Products, and Caveats InformationURL Name THEMIS EFI Processing History URL http://themis.ssl.berkeley.edu/efi_proc_history.shtml Description THEMIS Electric Field Instrument, EFI, Processing History with a Link To Data Variable Descriptions InformationURL Name THEMIS Project Home Page URL http://themis.ssl.berkeley.edu/index.shtml Description THEMIS Project Home Page InformationURL Name THEMIS Rules of the Road URL http://themis.ssl.berkeley.edu/roadrules.shtml Description THEMIS Rules of the Road, Details on the THEMIS Data Policy and on Publication Citation PriorIDs spase://VMO/NumericalData/THEMIS/D/EFI/PT3S spase://VSPO/NumericalData/THEMIS/D/EFI/PT3S 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/thd/l2/efi/ Description Access to Data in CDF Format via ftp from SPDF AccessURL Name HTTPS from SPDF URL https://spdf.gsfc.nasa.gov/pub/data/themis/thd/l2/efi/ Description Access to Data in CDF Format via http from SPDF AccessURL Name CDAWeb URL https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=THD_L2_EFI&index=sp_phys ProductKey THD_L2_EFI Description Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb Format CDF Encoding None AccessDirectoryTemplate https://cdaweb.gsfc.nasa.gov/pub/data/themis/thd/l2/efi/$Y AccessFilenameTemplate thd_l2_efi_$Y$m$d_$v.cdf Acknowledgement V. Angelopoulos, J. Bonnell, F. Mozer, NASA Contract NAS5-02099. Open Data for Scientific Use. Please acknowledge the data providers and CDAWeb when using these data. AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open AccessURL Name CDAWeb Programmatic Data Access URL https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/THD_L2_EFI/clientLibraryExample/ Style WebService ProductKey THD_L2_EFI Description Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Format Binary Acknowledgement V. Angelopoulos, J. Bonnell, F. Mozer, NASA Contract NAS5-02099. Open Data for Scientific Use. Please acknowledge the data providers and CDAWeb when using these data. 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 CDAWeb HAPI Server URL https://cdaweb.gsfc.nasa.gov/hapi Style HAPI ProductKey THD_L2_EFI@0 ProductKey THD_L2_EFI@1 ProductKey THD_L2_EFI@2 ProductKey THD_L2_EFI@3 ProductKey THD_L2_EFI@4 ProductKey THD_L2_EFI@5 Description Web Service to this product using the HAPI interface. Format CSV Acknowledgement V. Angelopoulos, J. Bonnell, F. Mozer, NASA Contract NAS5-02099. Open Data for Scientific Use. Please acknowledge the data providers and CDAWeb when using these data. AccessInformation RepositoryID spase://SMWG/Repository/UCB/THEMIS Availability Online AccessRights Open AccessURL Name THEMIS EFI data at University of California, Berkeley URL http://themis.ssl.berkeley.edu/data/themis/thd/l2/efi/ Description CDF data files for download, organized by date. Format CDF Encoding None ProcessingLevel Calibrated ProviderProcessingLevel Level 2 InstrumentIDs spase://SMWG/Instrument/THEMIS/D/EFI MeasurementType ElectricField TemporalDescription TimeSpan StartDate 2007-02-24 00:00:00.000Z RelativeStopDate -P7D Cadence PT3S ObservedRegion Earth.Magnetosphere ObservedRegion Earth.Magnetosphere.Magnetotail ObservedRegion Earth.Magnetosphere.Main ObservedRegion Earth.Magnetosphere.RadiationBelt ObservedRegion Earth.Magnetosheath ObservedRegion Heliosphere.NearEarth Caveats Measurements on the Axial booms, 5 and 6, may have large Errors due to their Proximity to the Spacecraft as the Axial Booms are much shorter than other Booms. The Spin Plane Booms for THEMIS were not deployed until January 14, 2008 at 1700 UT. Any EFI Measurements obtained prior to this Date and Time should not be used. See the THEMIS Website for more Information. Parameter #1 Name Epoch for Electric Field, Slow Survey using E⋅B=0, 3 s ParameterKey thd_efs_dot0_epoch Description Epoch for Electric Field Vector, Slow Survey using E⋅B=0, 3 s Data Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_efs_dot0_epoch0, thd_efs_dot0_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #2 Name Electric Field, Slow Survey using E⋅B=0, GSE XYZ, 3 s Set Time series defined by using: THD_EFS_DOT0_EPOCH ParameterKey thd_efs_dot0_gse Description Electric Field Vector, Slow Survey using E⋅B=0, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates, 3 s Data Caveats Units are in mV/m Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSE RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex GSE EFS_dot0-D Index 1 RenderingHints AxisLabel 1 Element Name Ey GSE EFS_dot0-D Index 2 RenderingHints AxisLabel 2 Element Name Ez GSE EFS_dot0-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Vector FieldQuantity Electric Parameter #3 Name Electric Field, Slow Survey using E⋅B=0, GSM XYZ, 3 s Set Time series defined by using: THD_EFS_DOT0_EPOCH ParameterKey thd_efs_dot0_gsm Description Electric Field Vector, Slow Survey using E⋅B=0, Geocentric Solar Magnetospheric, GSM, Cartesian Coordinates, 3 s Data Caveats Units are in mV/m Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSM RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex GSM EFS_dot0-D Index 1 RenderingHints AxisLabel 1 Element Name Ey GSM EFS_dot0-D Index 2 RenderingHints AxisLabel 2 Element Name Ez GSM EFS_dot0-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Vector FieldQuantity Electric Parameter #4 Name Electric Field, Slow Survey using E⋅B=0, DSL XYZ, 3 s Set Time series defined by using: THD_EFS_DOT0_EPOCH ParameterKey thd_efs_dot0_dsl Description Electric Field Vector, Slow Survey using E⋅B=0, Despun Spacecraft, DSL, Cartesian Coordinates, 3 s Data Caveats Units are in mV/m Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName SC RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex DSL EFS_dot0-D Index 1 RenderingHints AxisLabel 1 Element Name Ey DSL EFS_dot0-D Index 2 RenderingHints AxisLabel 2 Element Name Ez DSL EFS_dot0-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Vector FieldQuantity Electric Parameter #5 Name Epoch Time, UTC, for Electric Field, Slow Survey using E⋅B=0, 3 s ParameterKey thd_efs_dot0_time Description Time, UTC, in Seconds since 1970-01-01, for Electric Field Vector, Slow Survey using E⋅B=0, 3 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #6 Name Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Magnitude Data Quality Parameter Set Time series defined by using: THD_EFS_Q_MAG_EPOCH ParameterKey thd_efs_q_mag Description Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Vector Magnitude Data Quality Parameter, set to Not a Number, NaN, as there is no Good Measure of Data Quality for Fast Survey Caveats No Units Cadence PT3S RenderingHints DisplayType TimeSeries AxisLabel thd_efs_q_mag ValueFormat E13.6 ValidMin 0.0 ValidMax 1000.0 FillValue NaN Support SupportQuantity Other Parameter #7 Name Epoch Time, UTC, for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Magnitude Data Quality Parameter, 3 s ParameterKey thd_efs_q_mag_time Description Time, UTC, in Seconds since 1970-01-01, for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Vector Magnitude Data Quality Parameter, 3 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #8 Name Epoch for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Magnitude Data Quality Parameter, 3 s ParameterKey thd_efs_q_mag_epoch Description Epoch for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Vector Magnitude Data Quality Parameter, 3 s Data Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_efs_dot0_epoch0, thd_efs_q_mag_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #9 Name Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Phase Data Quality Parameter Set Time series defined by using: THD_EFS_Q_PHA_EPOCH ParameterKey thd_efs_q_pha Description Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Vector Phase Data Quality Parameter, set to Not a Number, NaN, as there is no Good Measure of Data Quality for Fast Survey Caveats No Units Cadence PT3S RenderingHints DisplayType TimeSeries AxisLabel thd_efs_q_pha ValueFormat E13.6 ValidMin 0.0 ValidMax 1000.0 FillValue NaN Support SupportQuantity Other Parameter #10 Name Epoch Time, UTC, for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Phase Data Quality Parameter, 3 s ParameterKey thd_efs_q_pha_time Description Time, UTC, in Seconds since 1970-01-01, for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Vector Phase Data Quality Parameter, 3 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #11 Name Epoch for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Phase Data Quality Parameter, 3 s ParameterKey thd_efs_q_pha_epoch Description Epoch for Spin Plane Electric Field, Slow Survey Ground Spin-Fit, Vector Phase Data Quality Parameter, 3 s Data Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_efs_dot0_epoch0, thd_efs_q_pha_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #12 Name Epoch0 for Electric Field, Slow Survey using E⋅B=0, 3 s ParameterKey thd_efs_dot0_epoch0 Description Epoch0 for Electric Field Vector, Slow Survey using E⋅B=0 Caveats EPOCH of 01-Jan-1970 00:00:00 Cadence PT3S Units ms UnitsConversion 1e-3>s RenderingHints AxisLabel timebase ValueFormat E13.6 ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #13 Name Epoch for Electric Field, Fast Survey using E⋅B=0, 1/8 s ParameterKey thd_eff_dot0_epoch Description Epoch for Electric Field Vector, Fast Survey using E⋅B=0, 1/8 s Data Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_eff_dot0_epoch0, thd_eff_dot0_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #14 Name Electric Field, Fast Survey using E⋅B=0, GSE XYZ, 1/8 s Set Time series defined by using: THD_EFF_DOT0_EPOCH ParameterKey thd_eff_dot0_gse Description Electric Field Vector, Fast Survey using E⋅B=0, Geocentric Solar Ecliptic, GSE, Cartesian Coordinates, 1/8 s Data Caveats Units are in mV/m Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSE RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex GSE EFF_dot0-D Index 1 RenderingHints AxisLabel 1 Element Name Ey GSE EFF_dot0-D Index 2 RenderingHints AxisLabel 2 Element Name Ez GSE EFF_dot0-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Vector FieldQuantity Electric Parameter #15 Name Electric Field, Fast Survey using E⋅B=0, GSM XYZ, 1/8 s Set Time series defined by using: THD_EFF_DOT0_EPOCH ParameterKey thd_eff_dot0_gsm Description Electric Field Vector, Fast Survey using E⋅B=0, Geocentric Solar Magnetospheric, GSM, Cartesian Coordinates, 1/8 s Data Caveats Units are in mV/m Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSM RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex GSM EFF_dot0-D Index 1 RenderingHints AxisLabel 1 Element Name Ey GSM EFF_dot0-D Index 2 RenderingHints AxisLabel 2 Element Name Ez GSM EFF_dot0-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Vector FieldQuantity Electric Parameter #16 Name Electric Field, Fast Survey using E⋅B=0, DSL XYZ, 1/8 s Set Time series defined by using: THD_EFF_DOT0_EPOCH ParameterKey thd_eff_dot0_dsl Description Electric Field Vector, Fast Survey using E⋅B=0, Despun Spacecraft, DSL, Cartesian Coordinates, 1/8 s Data Caveats Units are in mV/m Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName SC RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex DSL EFF_dot0-D Index 1 RenderingHints AxisLabel 1 Element Name Ey DSL EFF_dot0-D Index 2 RenderingHints AxisLabel 2 Element Name Ez DSL EFF_dot0-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Vector FieldQuantity Electric Parameter #17 Name Epoch Time, UTC, for Electric Field, Fast Survey using E⋅B=0, 1/8 s ParameterKey thd_eff_dot0_time Description Time, UTC, in Seconds since 1970-01-01, for Electric Field Vector, Fast Survey using E⋅B=0, 1/8 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #18 Name Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Magnitude Data Quality Parameter Set Time series defined by using: THD_EFF_Q_MAG_EPOCH ParameterKey thd_eff_q_mag Description Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Vector Magnitude Data Quality Parameter, equal to the Spin-Fit Short Boom DC-Coupled E34 Channel Electric Field Magnitude divided by the Spin-Fit Long Boom DC-Coupled E12 Channel Electric Field Magnitude: Good Values are near 1.0 Caveats No Units Cadence PT3S RenderingHints DisplayType TimeSeries AxisLabel thd_eff_q_mag ValueFormat E13.6 ValidMin 0.0 ValidMax 1000.0 FillValue NaN Support SupportQuantity Other Parameter #19 Name Epoch Time, UTC, for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Magnitude Data Quality Parameter, 3 s ParameterKey thd_eff_q_mag_time Description Time, UTC, in Seconds since 1970-01-01, for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Vector Magnitude Data Quality Parameter, 3 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #20 Name Epoch for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Magnitude Data Quality Parameter, 3 s ParameterKey thd_eff_q_mag_epoch Description Epoch for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Vector Magnitude Data Quality Parameter, 3 s Data Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_eff_dot0_epoch0, thd_eff_q_mag_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #21 Name Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Phase Data Quality Parameter Set Time series defined by using: THD_EFF_Q_PHA_EPOCH ParameterKey thd_eff_q_pha Description Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Vector Phase Data Quality Parameter, equal to the Cosine of the Angle between the Spin-Fit Short Boom DC-Coupled E34 Channel Electric Field Vector and the Spin-Fit Long Boom DC-Coupled E12 Channel Electric Field Vector, Good Values are near 1.0 Caveats No Units Cadence PT3S RenderingHints DisplayType TimeSeries AxisLabel thd_eff_q_pha ValueFormat E13.6 ValidMin 0.0 ValidMax 1000.0 FillValue NaN Support SupportQuantity Other Parameter #22 Name Epoch Time, UTC, for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Phase Data Quality Parameter, 3 s ParameterKey thd_eff_q_pha_time Description Time, UTC, in Seconds since 1970-01-01, for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Vector Phase Data Quality Parameter, 3 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #23 Name Epoch for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Phase Data Quality Parameter, 3 s ParameterKey thd_eff_q_pha_epoch Description Epoch for Spin Plane Electric Field, Fast Survey Ground Spin-Fit, Vector Phase Data Quality Parameter, 3 s Data Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_eff_dot0_epoch0, thd_eff_q_pha_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #24 Name Epoch for Spin Plane Electric Field, Fast Survey Ground Spin-Fit using E12, DSL XYZ ParameterKey thd_eff_e12_efs_epoch Description Epoch for Spin Plane Electric Field Vector, Fast Survey Ground Spin-Fit using the Long Boom DC-Coupled E12 Channel, Despun Spacecraft, DSL, Cartesian Coordinates, 3 s Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_eff_dot0_epoch0, thd_eff_e12_efs_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #25 Name Spin Plane Electric Field, Fast Survey Ground Spin-Fit using E12, DSL XYZ, 3 s Set Time series defined by using: THD_EFF_E12_EFS_EPOCH ParameterKey thd_eff_e12_efs Description Spin Plane Electric Field Vector, Fast Survey Ground Spin-Fit using the Long Boom DC-Coupled E12 Channel, Despun Spacecraft, DSL, Cartesian Coordinates, 3 s Data Caveats Units are in mV/m, Z, non-spin plane, component is NaN Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName SR2 RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex DSL EFF_E12_EFS-D Index 1 RenderingHints AxisLabel 1 Element Name Ey DSL EFF_E12_EFS-D Index 2 RenderingHints AxisLabel 2 Element Name Ez DSL EFF_E12_EFS-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Magnitude FieldQuantity Electric Parameter #26 Name Epoch Time, UTC, for Spin Plane Electric Field, Fast Survey Ground Spin-Fit using E12, DSL XYZ, 3 s ParameterKey thd_eff_e12_efs_time Description Time, UTC, in Seconds since 1970-01-01, for Spin Plane Electric Field Vector, Fast Survey Ground Spin-Fit using the Long Boom DC-Coupled E12 Channel, Despun Spacecraft, DSL, Cartesian Coordinates, 3 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #27 Name Epoch for Spin Plane Electric Field, Fast Survey Ground Spin-Fit using E34, DSL XYZ ParameterKey thd_eff_e34_efs_epoch Description Epoch for Spin Plane Electric Field Vector, Fast Survey Ground Spin-Fit using the Short Boom DC-Coupled E34 Channel, Despun Spacecraft, DSL, Cartesian Coordinates, 3 s Caveats This parameter is virtual. It is calculated by calling the function COMP_THEMIS_EPOCH with the following input parameters: thd_eff_dot0_epoch0, thd_eff_e34_efs_time. Cadence PT3S RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #28 Name Spin Plane Electric Field, Fast Survey Ground Spin-Fit using E34, DSL XYZ, 3 s Set Time series defined by using: THD_EFF_E34_EFS_EPOCH ParameterKey thd_eff_e34_efs Description Spin Plane Electric Field Vector, Fast Survey Ground Spin-Fit using the Short Boom DC-Coupled E34 Channel, Despun Spacecraft, DSL, Cartesian Coordinates, 3 s Data Caveats Units are in mV/m, Z, non-spin plane, component is NaN Average Type: standard Cadence PT3S Units mV/m UnitsConversion 1e-3>V/m CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName SR2 RenderingHints DisplayType TimeSeries ValueFormat E13.6 Structure Size 3 Element Name Ex DSL EFF_E34_EFS-D Index 1 RenderingHints AxisLabel 1 Element Name Ey DSL EFF_E34_EFS-D Index 2 RenderingHints AxisLabel 2 Element Name Ez DSL EFF_E34_EFS-D Index 3 RenderingHints AxisLabel 3 ValidMin -1000.0 ValidMax 1000.0 FillValue NaN Field Qualifier Magnitude FieldQuantity Electric Parameter #29 Name Epoch Time, UTC, for Spin Plane Electric Field, Fast Survey Ground Spin-Fit using E34, DSL XYZ, 3 s ParameterKey thd_eff_e34_efs_time Description Time, UTC, in Seconds since 1970-01-01, for Spin Plane Electric Field Vector, Fast Survey Ground Spin-Fit using the Short Boom DC-Coupled E34 Channel, Despun Spacecraft, DSL, Cartesian Coordinates, 3 s Data Caveats Unleaped seconds Cadence PT3S Units s RenderingHints AxisLabel UT ValueFormat F12.8 ValidMin 0.0 ValidMax 5.0e+09 FillValue NaN Support SupportQuantity Temporal Parameter #30 Name Epoch0 for Electric Field, Fast Survey using E⋅B=0, 1/8 s ParameterKey thd_eff_dot0_epoch0 Description Epoch0 for Electric Field Vector, Fast Survey using E⋅B=0 Caveats EPOCH of 01-Jan-1970 00:00:00 Cadence PT3S Units ms UnitsConversion 1e-3>s RenderingHints AxisLabel timebase ValueFormat E13.6 ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal Parameter #31 Name Range Epoch ParameterKey range_epoch Description Range Epoch Cadence PT3S Units ms UnitsConversion 1e-3>s RenderingHints AxisLabel UT ValidMin 5.99582e+13 ValidMax 6.63012e+13 FillValue -1.0e+31 Support SupportQuantity Temporal