<_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_fpi_slow_l2_des-dist_00000000_v01.json (from all.xml) <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json MMS Satellite Number 1 Dual Electron Spectrometer SlowSurvey-resolution instrument distributions <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description mms1_fpi_slow_l2_des-dist <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source FPI usually operates in Slow Survey Mode outside of the MMS Region Of Interest (ROI) for the current Mission Phase. Data captured from one of the four dual spectrometers over three spacecraft spins are reported at about 60 s resolution in this mode. This product contains phase-space distribution maps of those survey-resolution data from Slow Mode. In particular, the (highest possible quality at the time of release) corrected/converted "Slow Survey SkyMap" distributions are reported with time-stamps and other annotation characterizing the state of the instrument system at the indicated time. <_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/ http://mms.gsfc.nasa.gov at GSFC MMS home page <_Note>URL also in all.xml. Using master. http://mms.space.swri.edu at SWRI SMART package home page <_Note>URL also in all.xml. Using master. http://lasp.colorado.edu/mms/sdc at LASP Science Data Center <_Note>URL also in all.xml. Using master. http://www.nasa.gov/mission_pages/mms/spacecraft/instruments.html#fpi at NASA FPI overview <_Note>URL also in all.xml. Using master. See FPI Version Release Notes (https://lasp.colorado.edu/mms/sdc/public/datasets/fpi/) for rules of use. <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2015-09-01T00:32:55Z 2025-08-29T23:04:25Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT58.055327S <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/mms/mms1/fpi/slow/l2/des-dist/2015/09/mms1_fpi_slow_l2_des-dist_20150901003255_v3.4.0.cdf. The most common cadence, 58055327000 [ns] = PT58.055327S, occurred for 1.8519% of the 2 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, D. Gershman at SwRI, GSFC HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/mms/mms1/fpi/slow/l2/des-dist In CDF via HTTP from CDAWeb mms1_fpi_slow_l2_des-dist_%Y%m%d%H%M%S_%Q.cdf %Y/%m MMS1_FPI_SLOW_L2_DES-DIST CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: J. Burch, D. Gershman at SwRI, GSFC FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/mms/mms1/fpi/slow/l2/des-dist In CDF via HTTP from CDAWeb mms1_fpi_slow_l2_des-dist_%Y%m%d%H%M%S_%Q.cdf %Y/%m MMS1_FPI_SLOW_L2_DES-DIST CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: J. Burch, D. Gershman at SwRI, GSFC 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_FPI_SLOW_L2_DES-DIST 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, D. Gershman at SwRI, GSFC CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=MMS1_FPI_SLOW_L2_DES-DIST MMS1_FPI_SLOW_L2_DES-DIST 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, D. Gershman at SwRI, GSFC CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/MMS1_FPI_SLOW_L2_DES-DIST/clientLibraryExample/ MMS1_FPI_SLOW_L2_DES-DIST 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, D. Gershman at SwRI, GSFC 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=MMS1_FPI_SLOW_L2_DES-DIST MMS1_FPI_SLOW_L2_DES-DIST 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, D. Gershman at SwRI, GSFC CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=MMS1_FPI_SLOW_L2_DES-DIST MMS1_FPI_SLOW_L2_DES-DIST 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, D. Gershman at SwRI, GSFC CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=MMS1_FPI_SLOW_L2_DES-DIST&return=script MMS1_FPI_SLOW_L2_DES-DIST 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, D. Gershman at SwRI, GSFC HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=MMS1_FPI_SLOW_L2_DES-DIST&format=gallery MMS1_FPI_SLOW_L2_DES-DIST 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) Dual Electron Spectrometers (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) slow_l2_des-dist (from Master/CDFglobalAttributes/Data_type) DES (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 Time tags Epoch CATDESC: 'Nanoseconds since J2000'. 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 FPI/DES quality error flag mms1_des_errorflags_slow Master CDF CATDESC: 'MMS1 FPI/DES vector of data-quality indicators at survey-start time'. Master CDF VAR_NOTES: 'Value of zero signifies no quality errors. For non-zero values: Bit-0 = manually flagged interval, Bit-1 = overcounting/saturation effects likely present in skymap, Bit-2 = compression pipeline error'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' 32-bit error flags 4294967295 MMS1 FPI/DES start Del-Phi count mms1_des_startdelphi_count_slow Master CDF CATDESC: 'MMS1 FPI/DES Del-Phi (obs spin-phase) count at survey-start time'. Master CDF VAR_NOTES: 'Nominally, spin-phase counts range over [0000, 5759] cnts. Each count represents 1/16 deg of observatory spin-phase. Zero spin-phase angle indicates obs +X-axis aligned with the sun-sensor axis.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' del-phi counts 65535 MMS1 FPI/DES start Del-Phi angle mms1_des_startdelphi_angle_slow Master CDF CATDESC: 'MMS1 FPI/DES Del-Phi (obs spin-phase) angle at survey-start time'. Master CDF VAR_NOTES: 'Nominally, spin-phase angles range over [0, 360) deg. Each count represents 1/16 deg of observatory spin-phase. Zero spin-phase angle indicates obs +X-axis aligned with the sun-sensor axis.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' deg -1e+31 MMS1 FPI/DES slowSkyMap dist mms1_des_dist_slow Master CDF CATDESC: 'MMS1 FPI/DES Slow Survey sky-map instrument distribution'. Master CDF VAR_NOTES: 'Az bin: sector ind=00 looks "after" (spin-phase) Sun, ..., sector ind=15 looks "before" Sun dir. Head field-of-view: pixel index=00 looks to zenith, ..., pixel index=15 looks to nadir. FPI operations nominally bin data from 64 energy filters into 32 pairwise energy bins, indexed 0-31. Nominally, bins are indexed in increasing energy order. See FPI docs for details.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' s^3/cm^6 -1e+31 16 16 32 MMS1 FPI/DES slowSkyMap distErr mms1_des_disterr_slow Master CDF CATDESC: 'MMS1 FPI/DES Slow Survey sky-map instrument distribution 1-sigma error'. Master CDF VAR_NOTES: 'Az bin: sector ind=00 looks "after" (spin-phase) Sun, ..., sector ind=15 looks "before" Sun dir. Head field-of-view: pixel index=00 looks to zenith, ..., pixel index=15 looks to nadir. FPI operations nominally bin data from 64 energy filters into 32 pairwise energy bins, indexed 0-31. Nominally, bins are indexed in increasing energy order. See FPI docs for details.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' s^3/cm^6 -1e+31 16 16 32 MMS1 FPI/DES avgf1counts mms1_des_avgf1counts_slow Master CDF CATDESC: 'MMS1 FPI/DES slow survey average f1 count values'. Master CDF VAR_NOTES: 'Average f1-count level as a function of energy'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' s^3/cm^6 -1e+31 32 MMS1 FPI/DES energy mms1_des_energy_slow Master CDF CATDESC: 'MMS1 FPI/DES slow survey sky-map energies'. Master CDF VAR_NOTES: 'Geometric mean of parity 0 and parity 1 energies in the 64-step FPI energy table'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' eV -1e+31 32 MMS1 FPI/DES delta energy mms1_des_energy_delta_slow Master CDF CATDESC: 'MMS1 FPI/DES slow survey sky-map delta energies'. Master CDF VAR_NOTES: 'Note that the deltas are provided to indicate that FPI is reporting the energy bin centers. These do not necessarily reflect the energy bandwidth that is sampled by FPI at a given energy step.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' eV -1e+31 32