<_Note>Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness. 2.6.1 <_MasterURL>https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/thd_l2_fbk_00000000_v01.json (from all.xml) spase://NASA/NumericalData/THEMIS/D/FBK/PT4S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Probe Electric Field Instrument and Search Coil Magnetometer Instrument, Digital Fields Board- digitally computed Filter Bank spectra and E12 peak and average in HF band. <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description thd_l2_fbk <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source Sensor and electronics design provided by UCB (J. W. Bonnell, F. S. Mozer), Digital Fields Board provided by LASP (R. Ergun), Search coil data provided by CETP (A. Roux). <_Description>Source: Master/CDFglobalAttributes/TEXT NASA Contract NAS5-02099 <_Acknowledgement>Source: Master/CDFglobalAttributes/Acknowledgement <_Rights> SPDX Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html https://spdx.org/licenses/ http://themis.ssl.berkeley.edu/instrument_dfb.shtml Description including data modes, products and caveats Digital Field Board <_Note>URL also in all.xml. Using master. http://themis.ssl.berkeley.edu/fbk_proc_history.shtml Processing history and the THEMIS mission website including TDAS s/w FFT <_Note>URL also in all.xml. Using master. THEMIS website http://themis.ssl.berkeley.edu <_Note>Source: InformationURL.json Open Data for Scientific Use <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use https://doi.org/10.48322/dj1x-mv94 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2007-02-24T00:00:00Z 2026-07-20T23:59:59Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop <_ObservedRegion>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json <_ProcessingLevel>Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/themis/thd/l2/fbk In CDF via HTTP from CDAWeb thd_l2_fbk_%Y%m%d_%Q.cdf %Y THD_L2_FBK CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/themis/thd/l2/fbk In CDF via HTTP from CDAWeb thd_l2_fbk_%Y%m%d_%Q.cdf %Y THD_L2_FBK CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 CDAWeb Web Service https://cdaweb.gsfc.nasa.gov/WebServices/ Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made. THD_L2_FBK CDF CSV GIF NetCDF PNG PS PDF XML x_Script.IDL x_Script.Python Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=THD_L2_FBK THD_L2_FBK Web service user interface for this product. CDF GIF PDF Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/THD_L2_FBK/clientLibraryExample/ THD_L2_FBK Web service that generates a Python script to access this product. x_Script.IDL x_Script.Python spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/SSCWeb. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=THD_L2_FBK THD_L2_FBK Web Service to this product. HTML spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=THD_L2_FBK@0 Web Service to this product using the HAPI interface. Note that HAPI dataset has a collection of parameters, each having the same time stamps. This CDAWeb dataset contains 16 HAPI-type datasets. The @0, @1, ... at the end of the ParameterKeys indicates the index of the CDAWeb dataset. (The dataset index <=> CDF file time variable pairs are @0 => thd_fb_hff_epoch, @1 => thd_fb_v1_epoch, @2 => thd_fb_v2_epoch, @3 => thd_fb_v3_epoch, @4 => thd_fb_v4_epoch, @5 => thd_fb_v5_epoch, @6 => thd_fb_v6_epoch, @7 => thd_fb_edc12_epoch, @8 => thd_fb_edc34_epoch, @9 => thd_fb_edc56_epoch, @10 => thd_fb_scm1_epoch, @11 => thd_fb_scm2_epoch, @12 => thd_fb_scm3_epoch, @13 => thd_fb_eac12_epoch, @14 => thd_fb_eac34_epoch, @15 => thd_fb_eac56_epoch.) THD_L2_FBK@0 THD_L2_FBK@1 THD_L2_FBK@2 THD_L2_FBK@3 THD_L2_FBK@4 THD_L2_FBK@5 THD_L2_FBK@6 THD_L2_FBK@7 THD_L2_FBK@8 THD_L2_FBK@9 THD_L2_FBK@10 THD_L2_FBK@11 THD_L2_FBK@12 THD_L2_FBK@13 THD_L2_FBK@14 THD_L2_FBK@15 CSV JSON Binary spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=THD_L2_FBK@0&return=script Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API. Note that HAPI dataset has a collection of parameters, each having the same time stamps. This CDAWeb dataset contains 16 HAPI-type datasets. The @0, @1, ... at the end of the ParameterKeys indicates the index of the CDAWeb dataset. (The dataset index <=> CDF file time variable pairs are @0 => thd_fb_hff_epoch, @1 => thd_fb_v1_epoch, @2 => thd_fb_v2_epoch, @3 => thd_fb_v3_epoch, @4 => thd_fb_v4_epoch, @5 => thd_fb_v5_epoch, @6 => thd_fb_v6_epoch, @7 => thd_fb_edc12_epoch, @8 => thd_fb_edc34_epoch, @9 => thd_fb_edc56_epoch, @10 => thd_fb_scm1_epoch, @11 => thd_fb_scm2_epoch, @12 => thd_fb_scm3_epoch, @13 => thd_fb_eac12_epoch, @14 => thd_fb_eac34_epoch, @15 => thd_fb_eac56_epoch.) THD_L2_FBK@0 THD_L2_FBK@1 THD_L2_FBK@2 THD_L2_FBK@3 THD_L2_FBK@4 THD_L2_FBK@5 THD_L2_FBK@6 THD_L2_FBK@7 THD_L2_FBK@8 THD_L2_FBK@9 THD_L2_FBK@10 THD_L2_FBK@11 THD_L2_FBK@12 THD_L2_FBK@13 THD_L2_FBK@14 THD_L2_FBK@15 x_Script.IDL x_Script.Javascript x_Script.MATLAB x_Script.Python x_Script.Autoplot x_Script.curl x_Script.wget spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: V. Angelopoulos, J. W. Bonnell & F. S. Mozer; A. Roux and R. E. Ergun at UCB; CETP and LASP respectively, NASA NAS5-02099 HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=THD_L2_FBK@0&format=gallery Web Service that generates plots. See https://hapi-server.org/plot/ for the API. THD_L2_FBK@0 THD_L2_FBK@1 THD_L2_FBK@2 THD_L2_FBK@3 THD_L2_FBK@4 THD_L2_FBK@5 THD_L2_FBK@6 THD_L2_FBK@7 THD_L2_FBK@8 THD_L2_FBK@9 THD_L2_FBK@10 THD_L2_FBK@11 THD_L2_FBK@12 THD_L2_FBK@13 THD_L2_FBK@14 THD_L2_FBK@15 PNG PDF SVG Themis Probe D (from all.xml/observatory/description/@short) L2 DATA (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Magnetospheric Science (from Master/CDFglobalAttributes/Discipline) THD (from Master/CDFglobalAttributes/Source_name) Themis Probe D (from Master/CDFglobalAttributes/Source_name) fbk (from Master/CDFglobalAttributes/Data_type) Filter BanK and HF data (from Master/CDFglobalAttributes/Data_type) L2 (from all.xml/instrument/@ID) Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Plasmasphere Earth.Magnetosphere Earth.Magnetosheath Earth.Magnetosphere.Main Heliosphere.NearEarth Earth.Magnetosphere.RadiationBelt spase://SMWG/Instrument/THEMIS/D/EFI spase://SMWG/Instrument/THEMIS/D/SCM ElectricField MagneticField Spectrum thd_fbh_epoch thd_fb_hff_epoch CATDESC: 'thd_fbh_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal thd_fbh thd_fb_hff Master CDF CATDESC: 'High-Frequency Filter peak and average values'. Master CDF VAR_NOTES: 'hf_peak and hf_avg are the peak and average values of the output of the High-Frequency Filter, a broadband filter convering the 100- to 400-kHz band used for AKR detection'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_hff_epoch.' V NaN 2 thd_fb_v1_epoch thd_fb_v1_epoch CATDESC: 'thd_fb_v1_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_v1 Master CDF CATDESC: 'Spectrogram FBK Potential, Sensor 1'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_v1_epoch.' <|V|> NaN 6 thd_fb_v2_epoch thd_fb_v2_epoch CATDESC: 'thd_fb_v2_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_v2 Master CDF CATDESC: 'Spectrogram FBK Potential, Sensor 2'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_v2_epoch.' <|V|> NaN 6 thd_fb_v3_epoch thd_fb_v3_epoch CATDESC: 'thd_fb_v3_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_v3 Master CDF CATDESC: 'Spectrogram FBK Potential, Sensor 3'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_v3_epoch.' <|V|> NaN 6 thd_fb_v4_epoch thd_fb_v4_epoch CATDESC: 'thd_fb_v4_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_v4 Master CDF CATDESC: 'Spectrogram FBK Potential, Sensor 4'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_v4_epoch.' <|V|> NaN 6 thd_fb_v5_epoch thd_fb_v5_epoch CATDESC: 'thd_fb_v5_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_v5 Master CDF CATDESC: 'Spectrogram FBK Potential, Sensor 5'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_v5_epoch.' <|V|> NaN 6 thd_fb_v6_epoch thd_fb_v6_epoch CATDESC: 'thd_fb_v6_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_v6 Master CDF CATDESC: 'Spectrogram FBK Potential, Sensor 6'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_v6_epoch.' <|V|> NaN 6 thd_fb_edc12_epoch thd_fb_edc12_epoch CATDESC: 'thd_fb_edc12_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_edc12 Master CDF CATDESC: 'Spectrogram FBK E Field DC Component, Sensors 1&2 (spin plane)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_edc12_epoch.' <|mV/m|> NaN 6 thd_fb_edc34_epoch thd_fb_edc34_epoch CATDESC: 'thd_fb_edc34_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_edc34 Master CDF CATDESC: 'Spectrogram FBK E Field DC Component, Sensors 3&4 (spin plane)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_edc34_epoch.' <|mV/m|> NaN 6 thd_fb_edc56_epoch thd_fb_edc56_epoch CATDESC: 'thd_fb_edc56_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_edc56 Master CDF CATDESC: 'Spectrogram FBK E Field DC Component, Sensors 5&6 (axial)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_edc56_epoch.' <|mV/m|> NaN 6 thd_fb_scm1_epoch thd_fb_scm1_epoch CATDESC: 'thd_fb_scm1_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_scm1 Master CDF CATDESC: 'Spectrogram FBK Search Coil Magnetometer (SCM) Axis 1'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_scm1_epoch.' <|nT|> NaN 6 thd_fb_scm2_epoch thd_fb_scm2_epoch CATDESC: 'thd_fb_scm2_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_scm2 Master CDF CATDESC: 'Spectrogram FBK Search Coil Magnetometer (SCM) Axis 2'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_scm2_epoch.' <|nT|> NaN 6 thd_fb_scm3_epoch thd_fb_scm3_epoch CATDESC: 'thd_fb_scm3_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_scm3 Master CDF CATDESC: 'Spectrogram FBK Search Coil Magnetometer (SCM) Axis 3'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_scm3_epoch.' nT NaN 6 thd_fb_eac12_epoch thd_fb_eac12_epoch CATDESC: 'thd_fb_eac12_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_eac12 Master CDF CATDESC: 'Spectrogram FBK E Field AC Component, Sensors 1&2 (spin plane)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_eac12_epoch.' <|mV/m|> NaN 6 thd_fb_eac34_epoch thd_fb_eac34_epoch CATDESC: 'thd_fb_eac34_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_eac34 Master CDF CATDESC: 'Spectrogram FBK E Field AC Component, Sensors 3&4 (spin plane)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_eac34_epoch.' <|mV/m|> NaN 6 thd_fb_eac56_epoch thd_fb_eac56_epoch CATDESC: 'thd_fb_eac56_epoch'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' Scalar Temporal Calibrated Spectra thd_fb_eac56 Master CDF CATDESC: 'Spectrogram FBK E Field AC Component, Sensors 5&6 (axial)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is thd_fb_eac56_epoch.' <|mV/m|> NaN 6