2.2.2 spase://VMO/NumericalData/THEMIS/D/SCM/PT0.125S THEMIS-D: Search Coil Magnetometer 1/8s, 1/128s and 1/8192s Data 2010-03-30T17:41:42Z 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. spase://SMWG/Person/Vassilis.Angelopoulos PrincipalInvestigator spase://SMWG/Person/Alain.Roux PrincipalInvestigator 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://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open FTP access to files at SPDF ftp://spdf.gsfc.nasa.gov/pub/data/themis/thd/l2/scm/ NASA/GSFC CDAWeb ftp access to the data. HTTP access to files at SPDF http://spdf.gsfc.nasa.gov/pub/data/themis/thd/l2/scm/ In CDF via HTTP from SPDF CDAWeb http://cdaweb.gsfc.nasa.gov THD_L2_SCM Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb CDF None 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 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