<_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/mms1_dsp_fast_l2_epsd_00000000_v01.json (from all.xml) spase://NASA/NumericalData/MMS/1/FIELDS/DSP/Fast/Level2/ElectricFieldPowerSpectralDensity/PT2S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Low and medium frequency Electric Field spectral density from the FIELDS Digital Signal Processor <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description mms1_dsp_fast_l2_epsd <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source EPSD combines the low frequency E spectral density covering the frequency range of 1 to 8000 Hz and the medium frequency E spectral density covering the frequency range of .25 to 100 kHz. <_Description>Source: Master/CDFglobalAttributes/TEXT <_Rights> SPDX Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html https://spdx.org/licenses/ https://lasp.colorado.edu/mms/sdc/public/datasets/fields Data Caveats and Current Release Notes at LASP MMS SDC FIELDS/DSP <_Note>URL also in all.xml. Using master. http://mms-fields.unh.edu Home Page at UNH FIELDS <_Note>URL also in all.xml. Using master. https://science.nasa.gov/mission/mms Public Overview at NASA MMS <_Note>URL also in all.xml. Using master. The Magnetospheric Multiscale (MMS) Mission home page at Goddard Space Flight Center (GSFC) https://mms.gsfc.nasa.gov/ The Magnetospheric Multiscale (MMS) Mission Home Page hosted by the Goddard Space Flight Center (GSFC). <_Note>URL also in all.xml, master. Using InformationURL.json. https://mms.gsfc.nasa.gov/index.html Homepage MMS at NASA GSFC <_Note>URL also in all.xml. Using master. https://doi.org/10.48322/n5ky-bm34 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2015-09-01T00:00:00Z 2026-06-19T23:59:59Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT2.000025S <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/dsp/fast/l2/epsd/2015/09/mms1_dsp_fast_l2_epsd_20150901_v0.6.4.cdf. The most common cadence, 2000024736 [ns] = PT2.000025S, occurred for 1.1884% of the 300 timesteps. <_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: J. Burch, R. Ergun at SWRI, LASP HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/mms/mms1/dsp/fast/l2/epsd In CDF via HTTP from CDAWeb mms1_dsp_fast_l2_epsd_%Y%m%d_%Q.cdf %Y/%m MMS1_DSP_FAST_L2_EPSD CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: J. Burch, R. Ergun at SWRI, LASP FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/mms/mms1/dsp/fast/l2/epsd In CDF via HTTP from CDAWeb mms1_dsp_fast_l2_epsd_%Y%m%d_%Q.cdf %Y/%m MMS1_DSP_FAST_L2_EPSD CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: J. Burch, R. Ergun at SWRI, LASP 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. MMS1_DSP_FAST_L2_EPSD 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: J. Burch, R. Ergun at SWRI, LASP CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=MMS1_DSP_FAST_L2_EPSD MMS1_DSP_FAST_L2_EPSD 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: J. Burch, R. Ergun at SWRI, LASP CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/MMS1_DSP_FAST_L2_EPSD/clientLibraryExample/ MMS1_DSP_FAST_L2_EPSD 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: J. Burch, R. Ergun at SWRI, LASP 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=MMS1_DSP_FAST_L2_EPSD MMS1_DSP_FAST_L2_EPSD 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: J. Burch, R. Ergun at SWRI, LASP CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=MMS1_DSP_FAST_L2_EPSD MMS1_DSP_FAST_L2_EPSD Web Service to this product using the HAPI interface. CSV JSON Binary spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: J. Burch, R. Ergun at SWRI, LASP CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=MMS1_DSP_FAST_L2_EPSD&return=script MMS1_DSP_FAST_L2_EPSD 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. 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: J. Burch, R. Ergun at SWRI, LASP HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=MMS1_DSP_FAST_L2_EPSD&format=gallery MMS1_DSP_FAST_L2_EPSD Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG MMS Satellite Number 1 (from all.xml/observatory/description/@short) Digital Signal Processor (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Magnetospheric Science (from Master/CDFglobalAttributes/Discipline) MMS1 (from Master/CDFglobalAttributes/Source_name) MMS Satellite Number 1 (from Master/CDFglobalAttributes/Source_name) FAST_L2_EPSD (from Master/CDFglobalAttributes/Data_type) Fast Mode L2 E Spectral Density (from Master/CDFglobalAttributes/Data_type) DSP (from all.xml/instrument/@ID) Earth.Magnetosheath Earth.Magnetosphere Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Main Earth.Magnetosphere.RadiationBelt Earth.NearSurface.EquatorialRegion Earth.NearSurface.Plasmasphere Heliosphere.NearEarth spase://SMWG/Instrument/MMS/1/FIELDS/ADP spase://SMWG/Instrument/MMS/1/FIELDS/DSP spase://SMWG/Instrument/MMS/1/FIELDS/SDP ElectricField Waves.Passive Epoch Epoch CATDESC: 'packet time tag'. 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.' ns Scalar Temporal mms1_dsp_epsd_x mms1_dsp_epsd_x Master CDF CATDESC: ' '. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' (V/m)^{2}/Hz -1e+31 88 mms1_dsp_epsd_y mms1_dsp_epsd_y Master CDF CATDESC: ' '. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' (V/m)^{2}/Hz -1e+31 88 mms1_dsp_epsd_z mms1_dsp_epsd_z Master CDF CATDESC: ' '. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' (V/m)^{2}/Hz -1e+31 88 mms1_dsp_epsd_omni mms1_dsp_epsd_omni Master CDF CATDESC: ' '. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' (V/m)^{2}/Hz -1e+31 88 Time Line Epoch_timetag CATDESC: 'Start Time for the record'. 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.' ns Scalar Temporal SEQCNT mms1_dsp_seqcnt_lfe Master CDF CATDESC: 'SEQCNT'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch_timetag.' 65535