<_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/mms4_scm_brst_l2_schb_00000000_v01.json (from all.xml) spase://NASA/NumericalData/MMS/4/FIELDS/SCM/Burst/Level2/PT0.00006101515625S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Level 2 Search Coil Magnetometer AC Magnetic Field High Burst (16384S/s) Data <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description mms4_scm_brst_l2_schb <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source The tri-axial search-coil magnetometer (SCM) with its associated preamplifier provides the three-dimensional measurement of the magnetic field fluctuations. The analog magnetic waveforms measured by the SCM are digitized and processed inside the digital signal processor (DSP), collected and stored by the central instrument data processor (CIDP) via the Fields central electronics box (CEB). Prior to launch, all SCM Flight models were calibrated by LPP at the National Magnetic Observatory at Chambon-la-Foret (Orleans). Once per orbit, each SCM transfer function is checked thanks to the onboard calibration signal provided by DSP. SCM is operated for the entire MMS orbit in survey mode. Within the ROI, burst mode data are also acquired as well as high burst mode data. SCM data set corresponds to the AC magnetic field waveforms in nanoTesla and in the GSE frame.The instrument paper for SCM can be found at http://link.springer.com/article/10.1007/s11214-014-0096-9 <_Description>Source: Master/CDFglobalAttributes/TEXT The French involment (SCM instruments) on MMS is supported by CNES, CNRS-INSIS and CNRS-INSU. <_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/ 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://www.lpp.polytechnique.fr/MMS-SCM-939 at LPP SCM home page <_Note>URL also in all.xml. Using master. The MMS LPP SCM Team home page at LPP, CNRS École Polytechnique and Sorbonne Université https://www.lpp.polytechnique.fr/MMS-SCM-939?lang=en The Magnetospheric Multiscale (MMS) Search-Coil Magnetometer (SCM) home page hosted by the Laboratoire de Physique des Plasma (LPP), CNRS École Polytechnique and Sorbonne Université <_Note>Source: InformationURL.json See https://lasp.colorado.edu/galaxy/display/mms/MMS+Data+Rights+and+Rules+for+Data+Use and the acknowledgment informations given in this file. <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use https://doi.org/10.48322/89rs-0f95 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2015-09-01T12:11:14Z 2026-06-19T23:59:59Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT0.000061036S <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms4/scm/brst/l2/schb/2015/09/mms4_scm_brst_l2_schb_20150901121114_v2.2.0.cdf. The most common cadence, 61036 [ns] = PT0.000061036S, occurred for 89.4984% of the 1701006 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/Instrument/MMS/4/FIELDS/SCM spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: J. Burch, O. Le Contel at SWRI, LPP HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/mms/mms4/scm/brst/l2/schb In CDF via HTTP from CDAWeb mms4_scm_brst_l2_schb_%Y%m%d%H%M%S_%Q.cdf %Y/%m MMS4_SCM_BRST_L2_SCHB CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: J. Burch, O. Le Contel at SWRI, LPP FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/mms/mms4/scm/brst/l2/schb In CDF via HTTP from CDAWeb mms4_scm_brst_l2_schb_%Y%m%d%H%M%S_%Q.cdf %Y/%m MMS4_SCM_BRST_L2_SCHB CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: J. Burch, O. Le Contel at SWRI, LPP 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. MMS4_SCM_BRST_L2_SCHB 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, O. Le Contel at SWRI, LPP CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=MMS4_SCM_BRST_L2_SCHB MMS4_SCM_BRST_L2_SCHB 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, O. Le Contel at SWRI, LPP CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/MMS4_SCM_BRST_L2_SCHB/clientLibraryExample/ MMS4_SCM_BRST_L2_SCHB 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, O. Le Contel at SWRI, LPP 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=MMS4_SCM_BRST_L2_SCHB MMS4_SCM_BRST_L2_SCHB 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, O. Le Contel at SWRI, LPP CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=MMS4_SCM_BRST_L2_SCHB MMS4_SCM_BRST_L2_SCHB 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, O. Le Contel at SWRI, LPP CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=MMS4_SCM_BRST_L2_SCHB&return=script MMS4_SCM_BRST_L2_SCHB 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, O. Le Contel at SWRI, LPP HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=MMS4_SCM_BRST_L2_SCHB&format=gallery MMS4_SCM_BRST_L2_SCHB Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG MMS Satellite Number 4 (from all.xml/observatory/description/@short) Search Coil Magnetometer (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Magnetospheric Science (from Master/CDFglobalAttributes/Discipline) MMS4 (from Master/CDFglobalAttributes/Source_name) MMS Satellite Number 4 (from Master/CDFglobalAttributes/Source_name) brst_l2_schb (from Master/CDFglobalAttributes/Data_type) SCM (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 MagneticField Waves.Passive Epoch Epoch CATDESC: 'Sample Center Time'. 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 mms4_scm_acb_gse_schb_brst_l2 mms4_scm_acb_gse_schb_brst_l2 Master CDF CATDESC: 'L2 AC magnetic field in GSE frame'. Master CDF VAR_NOTES: 'These calibrated (nT) AC magnetic field waveform data are sampled at 16384S/s. They are high-pass filtered above 32.00Hz but not low-pass filtered. See global attributes for details. For more information, please have a look at the SCM Data Products Guide (https://lasp.colorado.edu/mms/sdc/public/datasets/fields/Science_Data_Products_Guide_vol2_SCM_v11_20160301.pdf).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT NaN 3