2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/THEMIS/D/SCM/PT0.125S NASA NumericalData THEMIS-D: Search Coil Magnetometer 1/8s, 1/128s and 1/8192s Data https://doi.org/10.48322/m5dr-nh16 2025-12-04T13:31:45Z 2021-04-27T15:38:11 Only known prior ReleaseDate of the metadata 2023-07-30T12:34:56.789 Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727 2025-10-03T11:23:59Z 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 2025-10-21T12:34:56.789 Revised ObservedRegion. JMW 2025-12-04T13:31:45Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB THEMIS-D: 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. 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. Angelopoulos, Vassilis; Roux, Alain 2023-01-01T00:00:00 Space Physics Data Facility; University of California, Berkeley spase://SMWG/Person/Vassilis.Angelopoulos PrincipalInvestigator spase://SMWG/Person/Alain.Roux PrincipalInvestigator spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact THEMIS Home Page http://themis.ssl.berkeley.edu/index.shtml The THEMIS project home page. THEMIS Data Policy and Credits http://themis.ssl.berkeley.edu/roadrules.shtml Details on THEMIS data policy and giving proper credits in publications. spase://VMO/NumericalData/THEMIS/D/SCM/PT0.125S spase://VSPO/NumericalData/THEMIS/D/SCM/PT0.125S spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/themis/thd/l2/scm/ NASA/GSFC CDAWeb ftp access to the data. HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/themis/thd/l2/scm/ In CDF via HTTP from SPDF CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=THD_L2_SCM&index=sp_phys THD_L2_SCM Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb CDF None https://cdaweb.gsfc.nasa.gov/pub/data/themis/thd/l2/scm/$Y thd_l2_scm_$Y$m$d_$v.cdf spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb Programmatic Data Access https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/THD_L2_SCM/clientLibraryExample/ THD_L2_SCM Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Binary spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi THD_L2_SCM@0 THD_L2_SCM@1 THD_L2_SCM@2 Web Service to this product using the HAPI interface. CSV spase://SMWG/Repository/UCB/THEMIS Online Open THEMIS L2 SCM data at UC Berkeley http://themis.ssl.berkeley.edu/data/themis/thd/l2/scm/ CDF data files for download, organized by date. CDF None Calibrated Level 2 v1 spase://SMWG/Instrument/THEMIS/D/SCM MagneticField 2007-02-24T00:00:00Z -P7D PT0.125S Heliosphere.NearEarth Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Main Earth.Magnetosheath Earth.Magnetosphere Earth.Magnetosphere.RadiationBelt See THEMIS website for caveats Fast-Survey Magnetic Field Magnitude thd_scf_btotal Total B-field magnitude from SCF data (fast-survey, 1/8 sec time resolution). PT0.125S nT 1e-9>T 0.0 25000.0 NaN Total Magnitude Magnetic Fast-Survey Magnetic Field Vector (GSE) thd_scf_gse B-Field vector from fast survey mode (1/8 sec time resolution) in GSE Coordinates. PT0.125S nT 1e-9>T Cartesian GSE 3 Bx SCF-D Component.I 1 -25000.0 25000.0 NaN By SCF-D Component.J 2 -25000.0 25000.0 NaN Bz SCF-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Fast-Survey Magnetic Field Vector (GSM) thd_scf_gsm B-Field vector from fast survey mode (1/8 sec time resolution) in GSM Coordinates. PT0.125S nT 1e-9>T Cartesian GSM 3 Bx SCF-D Component.I 1 -25000.0 25000.0 NaN By SCF-D Component.J 2 -25000.0 25000.0 NaN Bz SCF-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Fast-Survey Magnetic Field Vector (DSL) thd_scf_dsl B-Field vector from fast survey mode (1/8 sec time resolution) in DSL (despun spacecraft) coordinates. PT0.125S nT 1e-9>T Cartesian SR2 3 Bx SCF-D Component.I 1 -25000.0 25000.0 NaN By SCF-D Component.J 2 -25000.0 25000.0 NaN Bz SCF-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Fast-Survey Time thd_scf_time Fast-survey mode data timestamp, UTC, in seconds since 01-Jan-1970 00:00:00. Not including leap seconds PT0.125S s 0.0 5.0E9 NaN Temporal Particle-Burst Magnetic Field Magnitude thd_scp_btotal Total B-Field magnitude from SCP data(particle burst, 1/128 second time resolution). nT 1e-9>T 0.0 25000.0 NaN Total Magnitude Magnetic Particle-Burst Magnetic Field Vector (GSE) thd_scp_gse B-Field vector from particle burst mode (1/128 second time resolution) in GSE coordinates. PT0.0078125S nT 1e-9>T Cartesian GSE 3 Bx SCP-D Component.I 1 -25000.0 25000.0 NaN By SCP-D Component.J 2 -25000.0 25000.0 NaN Bz SCP-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Particle-Burst Magnetic Field Vector (GSM) thd_scp_gsm B-Field vector from particle burst mode (1/128 second time resolution) in GSM coordinates. PT0.0078125S nT 1e-9>T Cartesian GSM 3 Bx SCP-D Component.I 1 -25000.0 25000.0 NaN By SCP-D Component.J 2 -25000.0 25000.0 NaN Bz SCP-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Particle-Burst Magnetic Field Vector (DSL) thd_scp_dsl B-Field vector from particle burst mode (1/128 second time resolution) in DSL (despun spacecraft) coordinates. PT0.0078125S nT 1e-9>T Cartesian SR2 3 Bx SCP-D Component.I 1 -25000.0 25000.0 NaN By SCP-D Component.J 2 -25000.0 25000.0 NaN Bz SCP-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Particle-Burst Time thd_scp_time Particle Burst mode timestamp (1/128 second resolution), UTC, in seconds since 01-Jan-1970 00:00:00. Not including leap seconds PT0.0078125S s 0.0 5.0E9 NaN Temporal Wave-Burst Magnetic field Magnitude thd_scw_btotal Total B-Field magnitude from SCW data(wave burst mode, 1/8192 second time resolution). PT0.0001220703125S nT 1e-9>T 0.0 25000.0 NaN Total Magnitude Magnetic Wave-Burst Magnetic Field Vector (GSE) thd_scw_gse B-Field vector from wave burst mode(1/8192 second time resolution) in GSE coordinates. PT0.0001220703125S nT 1e-9>T Cartesian GSE 3 Bx SCW-D Component.I 1 -25000.0 25000.0 NaN By SCW-D Component.J 2 -25000.0 25000.0 NaN Bz SCW-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Wave-Burst Magnetic Field Vector (GSM) thd_scw_gsm B-Field vector from wave burst mode(1/8192 second time resolution) in GSM coordinates. PT0.0001220703125S nT 1e-9>T Cartesian GSM 3 Bx SCW-D Component.I 1 -25000.0 25000.0 NaN By SCW-D Component.J 2 -25000.0 25000.0 NaN Bz SCW-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Wave-Burst Magnetic Field Vector (DSL) thd_scw_dsl B-Field vector from wave burst mode(1/8192 second time resolution) in DSL (despun spacecraft) coordinates. PT0.0001220703125S nT 1e-9>T Cartesian SR2 3 Bx SCW-D Component.I 1 -25000.0 25000.0 NaN By SCW-D Component.J 2 -25000.0 25000.0 NaN Bz SCW-D Component.K 3 -25000.0 25000.0 NaN Vector Magnetic Wave-Burst Time thd_scw_time Wave Burst mode timestamp (1/8192 second resolution), UTC, in seconds since 01-Jan-1970 00:00:00 Not including leap seconds PT0.0001220703125S s 0.0 5.0E9 NaN Temporal