Data Access
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.
Version:2.2.9
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.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Vassilis.Angelopoulos |
| 2. | PrincipalInvestigator | spase://SMWG/Person/Alain.Roux |
The THEMIS project home page.
Details on THEMIS data policy and giving proper credits in publications.
NASA/GSFC SPDF ftp access to the data.
In CDF via HTTP from SPDF
Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb
CDF data files for download, organized by date.
Total B-field magnitude from SCF data (fast-survey, 1/8 sec time resolution).
B-Field vector from fast survey mode (1/8 sec time resolution) in GSE Coordinates.
B-Field vector from fast survey mode (1/8 sec time resolution) in GSM Coordinates.
B-Field vector from fast survey mode (1/8 sec time resolution) in DSL (despun spacecraft) coordinates.
Fast-survey mode data timestamp, UTC, in seconds since 01-Jan-1970 00:00:00.
Total B-Field magnitude from SCP data(particle burst, 1/128 second time resolution).
B-Field vector from particle burst mode (1/128 second time resolution) in GSE coordinates.
B-Field vector from particle burst mode (1/128 second time resolution) in GSM coordinates.
B-Field vector from particle burst mode (1/128 second time resolution) in DSL (despun spacecraft) coordinates.
Particle Burst mode timestamp (1/128 second resolution), UTC, in seconds since 01-Jan-1970 00:00:00.
Total B-Field magnitude from SCW data(wave burst mode, 1/8192 second time resolution).
B-Field vector from wave burst mode(1/8192 second time resolution) in GSE coordinates.
B-Field vector from wave burst mode(1/8192 second time resolution) in GSM coordinates.
B-Field vector from wave burst mode(1/8192 second time resolution) in DSL (despun spacecraft) coordinates.
Wave Burst mode timestamp (1/8192 second resolution), UTC, in seconds since 01-Jan-1970 00:00:00