{ "Spase": { "xmlns": "http://www.spase-group.org/data/schema", "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance", "xsi:schemaLocation": "http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_6_1.xsd", "_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.", "Version": "2.6.1", "_MasterURL": "https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/psp_swp_spc_l2i_00000000_v01.json (from all.xml)", "NumericalData": { "ResourceID": "spase://NASA/NumericalData/ParkerSolarProbe/SWEAP/SPC/Level2/ChargeFluxDistributions/PT0.2185S", "_ResourceID": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json", "ResourceHeader": { "ResourceName": "Parker Solar Probe/SWEAP/SPC Level 2 charge flux distributions", "_ResourceName": "Source: Master/CDFglobalAttributes/Logical_source_description", "AlternateName": "psp_swp_spc_l2i", "_AlternateName": "Source: Master/CDFglobalAttributes/Logical_source", "Description": "Solar Probe Cup (SPC) charge flux distributions comprise electrical current as a function of time and energy-per-charge, with appropriate instrument response elements considered and calibrations applied. This is a two SWEAP SPC experiment level 2 (L2) standard data product.", "_Description": "Source: Master/CDFglobalAttributes/TEXT", "Acknowledgement": "This project acknowledges the Parker Solar Probe SWEAP instrument team and the SWEAP science data center for providing these solar wind plasma measurements.", "_Acknowledgement": "Source: Master/CDFglobalAttributes/Acknowledgement", "_Rights": { "Name": "SPDX", "Description": "Creative Commons Zero v1.0 Universal", "URL": "https://spdx.org/licenses/CC0-1.0.html", "SchemeURI": "https://spdx.org/licenses/" }, "InformationURL": [ { "URL": "https://link.springer.com/article/10.1007/s11214-015-0206-3", "Name": " Instrument Paper", "Description": "SWEAP", "_Note": "URL also in all.xml. Using master." }, { "Name": "PSP SWEAP Data Access web site, SAO", "URL": "http://sweap.cfa.harvard.edu/Data.html", "Description": "Parker Solar Probe, PSP, SWEAP Data Access web site, Smithsonian Astrophysical Observatory", "_Note": "URL also in all.xml, master. Using InformationURL.json." }, { "Name": "PSP SWEAP Instrument Suite, Space Science Review Publication", "URL": "https://doi.org/10.1007/s11214-015-0206-3", "Description": "Parker Solar Probe, PSP, SWEAP Instrument Suite Description: Kasper, J.C., Abiad, R., Austin, G. et al., Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus, Space Scii. Rev., 204, 131–186 (2016)", "_Note": "Source: InformationURL.json" }, { "Name": "PSP SWEAP home page, SAO", "URL": "http://sweap.cfa.harvard.edu", "Description": "Parker Solar Probe, PSP, SWEAP home page, Smithsonian Astrophysical Observatory", "_Note": "Source: InformationURL.json" } ] }, "Caveats": "NASA open data policy applies. Consultation with the instrument team is strongly recommended.", "_Caveats": "Source: Master/CDFglobalAttributes/Rules_of_use", "DOI": "https://doi.org/10.48322/wpk2-yq48", "_DOI": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json", "AccessInformation": [ { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "CDF" ], "Style": "Listing", "AccessURL": { "Name": "HTTPS from SPDF", "URL": "https://cdaweb.gsfc.nasa.gov/pub/data/psp/sweap/spc/l2/l2i", "Description": "In CDF via HTTP from CDAWeb", "AccessFilenameTemplate": "psp_swp_spc_l2i_%Y%m%d_%Q.cdf", "AccessDirectoryTemplate": "%Y", "ProductKey": "PSP_SWP_SPC_L2I" } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "CDF" ], "Style": "Listing", "AccessURL": { "Name": "FTPS from SPDF", "URL": "ftps://cdaweb.gsfc.nasa.gov/pub/data/psp/sweap/spc/l2/l2i", "Description": "In CDF via HTTP from CDAWeb", "AccessFilenameTemplate": "psp_swp_spc_l2i_%Y%m%d_%Q.cdf", "AccessDirectoryTemplate": "%Y", "ProductKey": "PSP_SWP_SPC_L2I" } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "CDF", "CSV", "GIF", "NetCDF", "PNG", "PS", "PDF", "XML", "x_Script.IDL", "x_Script.Python", "Text.ASCII", "x_WAV" ], "AccessURL": { "Name": "CDAWeb Web Service", "URL": "https://cdaweb.gsfc.nasa.gov/WebServices/", "Style": "WebService", "Description": "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.", "ProductKey": "PSP_SWP_SPC_L2I" } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "CDF", "GIF", "PDF", "Text.ASCII", "x_WAV" ], "AccessURL": { "Name": "CDAWeb Web Service user interface", "URL": "https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=PSP_SWP_SPC_L2I", "Style": "WebService", "ProductKey": "PSP_SWP_SPC_L2I", "Description": "Web service user interface for this product." } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "x_Script.IDL", "x_Script.Python" ], "AccessURL": { "Name": "CDAWeb Python Script", "URL": "https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/PSP_SWP_SPC_L2I/clientLibraryExample/", "ProductKey": "PSP_SWP_SPC_L2I", "Style": "WebService", "Description": "Web service that generates a Python script to access this product." } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/SSCWeb. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "HTML" ], "AccessURL": { "Name": "4D Orbit Viewer", "URL": "https://sscweb.gsfc.nasa.gov/4dorbit/?sc=PSP_SWP_SPC_L2I", "ProductKey": "PSP_SWP_SPC_L2I", "Style": "x_Visualization", "Description": "Web Service to this product." } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "CSV", "JSON", "Binary" ], "AccessURL": { "Name": "CDAWeb HAPI Server", "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=PSP_SWP_SPC_L2I", "Style": "HAPI", "ProductKey": "PSP_SWP_SPC_L2I", "Description": "Web Service to this product using the HAPI interface." } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "x_Script.IDL", "x_Script.Javascript", "x_Script.MATLAB", "x_Script.Python", "x_Script.Autoplot", "x_Script.curl", "x_Script.wget" ], "AccessURL": { "Name": "CDAWeb HAPI Script in Multiple Languages", "URL": "https://hapi-server.org/servers/#server=CDAWeb&dataset=PSP_SWP_SPC_L2I&return=script", "Style": "HAPI", "ProductKey": "PSP_SWP_SPC_L2I", "Description": "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." } }, { "RepositoryID": "spase://SMWG/Repository/NASA/GSFC/SPDF", "Availability": "Online", "AccessRights": "Open", "Acknowledgement": "SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Michael L. Stevens at Center for Astrophysics, Harvard and Smithsonian", "Format": [ "PNG", "PDF", "SVG" ], "AccessURL": { "Name": "HAPI visualizations", "URL": "https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=PSP_SWP_SPC_L2I&format=gallery", "Style": "x_Visualization", "ProductKey": "PSP_SWP_SPC_L2I", "Description": "Web Service that generates plots. See https://hapi-server.org/plot/ for the API." } } ], "_AccessInformation": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json", "TemporalDescription": { "TimeSpan": { "StartDate": "2018-10-30T23:59:59Z", "StopDate": "2025-11-30T09:50:48Z" }, "_TemporalDescription": "Generated from all.xml/@timerange_start and all.xml/@timerange_stop", "Cadence": "PT0.87382S", "_Cadence": "Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/psp/sweap/spc/l2/l2i/2018/psp_swp_spc_l2i_20181031_v01.cdf. The most common cadence, 873820032 [ns] = PT0.87382S, occurred for 34.1889% of the 31835 timesteps. " }, "Keyword": [ "Parker Solar Probe (from all.xml/observatory/description/@short)", "Solar Wind Electrons Alphas and Protons / Solar Probe Cup (from all.xml/instrument/description/@short)", "Solar Physics (from Master/CDFglobalAttributes/Discipline)", "Heliospheric Physics (from Master/CDFglobalAttributes/Discipline)", "Space Physics (from Master/CDFglobalAttributes/Discipline)", "Interplanetary Studies (from Master/CDFglobalAttributes/Discipline)", "PSP (from Master/CDFglobalAttributes/Source_name)", "Parker Solar Probe (from Master/CDFglobalAttributes/Source_name)", "L2i (from Master/CDFglobalAttributes/Data_type)", "Solar Wind Ion Distribution Function (from Master/CDFglobalAttributes/Data_type)", "SWP_SPC (from all.xml/instrument/@ID)" ], "ObservedRegion": [ "Heliosphere", "Heliosphere.Inner", "Heliosphere.NearEarth", "Sun.Corona" ], "_ObservedRegion": "Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json", "ProcessingLevel": null, "_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", "InstrumentID": "spase://SMWG/Instrument/ParkerSolarProbe/SWEAP/SPC", "MeasurementType": [ "InstrumentStatus", "ThermalPlasma" ], "Parameter2": [ { "Name": "Epoch", "ParameterKey": "Epoch", "Description": "CATDESC: 'CDF TT2000 time [ns]'. 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.'", "Units": "ns", "Support": { "Qualifier": "Scalar", "SupportQuantity": "Temporal" } }, { "Name": "measurement_time", "ParameterKey": "measurement_time", "Description": "Master CDF CATDESC: 'Time of flux measurement, in nanoseconds, from beginning of spectrum (Epoch)'. Master CDF VAR_NOTES: 'This variable gives the time that each specific flux measurement was made within the spectrum, counting up from the time that is specified in the \"Epoch\" variable'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "ns", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "mv_hi", "ParameterKey": "mv_hi", "Description": "Master CDF CATDESC: 'Upper measurement voltage'. Master CDF VAR_NOTES: 'Measurements of charge flux are made with respect to an AC discriminator voltage that oscillates between two values, which are denoted mv_lo and mv_hi.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "Volts", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "mv_hi_DELTA_VAR", "ParameterKey": "mv_hi_DELTA_VAR", "Description": "Master CDF CATDESC: 'Uncertainty in the upper measurement voltage'. Master CDF VAR_NOTES: 'Measurements of charge flux are made with respect to an AC discriminator voltage that oscillates between two values, which are denoted mv_lo and mv_hi.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "Volts", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "mv_lo", "ParameterKey": "mv_lo", "Description": "Master CDF CATDESC: 'Lower measurement voltage'. Master CDF VAR_NOTES: 'Measurements of charge flux are made with respect to an AC discriminator voltage that oscillates between two values, which are denoted mv_lo and mv_hi.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "Volts", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "mv_lo_DELTA_VAR", "ParameterKey": "mv_lo_DELTA_VAR", "Description": "Master CDF CATDESC: 'Uncertainty in the lower measurement voltage'. Master CDF VAR_NOTES: 'Measurements of charge flux are made with respect to an AC discriminator voltage that oscillates between two values, which are denoted mv_lo and mv_hi.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "Volts", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "A_CURRENT", "ParameterKey": "a_current", "Description": "Master CDF CATDESC: 'Current measured by sensor A, in picoAmperes'. Master CDF VAR_NOTES: 'This current represents the differential charge flux upon the sensor, as a function of the time and modulator voltage pair.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "B_CURRENT", "ParameterKey": "b_current", "Description": "Master CDF CATDESC: 'Current measured by sensor B, in picoAmperes'. Master CDF VAR_NOTES: 'This current represents the differential charge flux upon the sensor, as a function of the time and modulator voltage pair.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "C_CURRENT", "ParameterKey": "c_current", "Description": "Master CDF CATDESC: 'Current measured by sensor C, in picoAmperes'. Master CDF VAR_NOTES: 'This current represents the differential charge flux upon the sensor, as a function of the time and modulator voltage pair.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "D_CURRENT", "ParameterKey": "d_current", "Description": "Master CDF CATDESC: 'Current measured by sensor D, in picoAmperes'. Master CDF VAR_NOTES: 'This current represents the differential charge flux upon the sensor, as a function of the time and modulator voltage pair.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "A_CURRENT_DELTA_VAR", "ParameterKey": "a_current_DELTA_VAR", "Description": "Master CDF CATDESC: 'Uncertainty in the current measured by sensor A, in picoAmperes'. Master CDF VAR_NOTES: 'Sources of uncertainty include the measurement digitization error, the voltage pair and waveform error, non-stationarity of conditions during the measurement period, and the propagated uncertainty in absolute calibration.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "B_CURRENT_DELTA_VAR", "ParameterKey": "b_current_DELTA_VAR", "Description": "Master CDF CATDESC: 'Uncertainty in the current measured by sensor B, in picoAmperes'. Master CDF VAR_NOTES: 'Sources of uncertainty include the measurement digitization error, the voltage pair and waveform error, non-stationarity of conditions during the measurement period, and the propagated uncertainty in absolute calibration.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "C_CURRENT_DELTA_VAR", "ParameterKey": "c_current_DELTA_VAR", "Description": "Master CDF CATDESC: 'Uncertainty in the current measured by sensor C, in picoAmperes'. Master CDF VAR_NOTES: 'Sources of uncertainty include the measurement digitization error, the voltage pair and waveform error, non-stationarity of conditions during the measurement period, and the propagated uncertainty in absolute calibration.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "D_CURRENT_DELTA_VAR", "ParameterKey": "d_current_DELTA_VAR", "Description": "Master CDF CATDESC: 'Uncertainty in the current measured by sensor D, in picoAmperes'. Master CDF VAR_NOTES: 'Sources of uncertainty include the measurement digitization error, the voltage pair and waveform error, non-stationarity of conditions during the measurement period, and the propagated uncertainty in absolute calibration.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "flow_angle", "ParameterKey": "flow_angle", "Description": "Master CDF CATDESC: 'rough estimate angle of the mean flow into the cup, in radians, in SPC coordinates'. Master CDF VAR_NOTES: 'This flow component is across the sensor with respect to the sensor coordinate system. This flow angle is estimated using the linear cold-plasma approximation and considering a three-point neighborhood in time at the peak flux measurement. It does not account for spreading of the beam in the instrument, which may be significant. This angle is used to estimate the diff_charge_flux_density variable (refer to documentation)'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "radian", "FillValue": -1e+31, "Structure": { "Size": [ 2 ] } }, { "Name": "flow_angle_DELTA_VAR", "ParameterKey": "flow_angle_DELTA_VAR", "Description": "Master CDF CATDESC: 'Estimated uncertainty in the angle of flow into the cup, in radians, in the SPC coordinate system'. Master CDF VAR_NOTES: 'Sources of uncertainty can include propagated calibration uncertainty, propagated current measurement uncertainty, non-stationarity of the flow angle over the period of measurement, and confusion between multiple ion species. As this angle estimate uses the linear, cold-plasma approximation, systematic effects are significant at large angles and temperatures.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "radian", "FillValue": -1e+31, "Structure": { "Size": [ 2 ] } }, { "Name": "DIFF_CHARGE_FLUX_DENSITY", "ParameterKey": "diff_charge_flux_density", "Description": "Master CDF CATDESC: 'differential charge flux density, in pA*cm**-2'. Master CDF VAR_NOTES: 'This is the charge flux density of the solar wind measured over the energy range defined by the modulator voltage pair. The [calibrated] effective area of the cup has been taken into account. This quantity is the equivalent of the total charge crossing a ZSC-oriented unit area per unit time) due to charge carriers having energy-per-charge between mv_lo and mv_hi. This quantity is estimated using a linear, cold-plasma approximation for the mean flow angle of the solar wind into the sensor. See remarks.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA*cm**-2", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "DIFF_CHARGE_FLUX_DENSITY_DELTA_VAR", "ParameterKey": "diff_charge_flux_density_DELTA_VAR", "Description": "Master CDF CATDESC: 'DIFF_CHARGE_FLUX_DENSITY_DELTA_VAR'. Master CDF VAR_NOTES: 'Sources of uncertainty include all propagated uncertainties, plus uncertainty associated with the effective area of the sensor at the estimated flow angle'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": "pA*cm**-2", "FillValue": -1e+31, "Structure": { "Size": [ 128 ] } }, { "Name": "MODE_FLAG", "ParameterKey": "MODE_FLAG", "Description": "Master CDF CATDESC: 'Flag signifying the SPC operating mode at the time of measurement.'. Master CDF VAR_NOTES: '0 - ion peak tracking 1 - ion full scan 2 - ion flux-angle mode 3 - ion calibration mode 4 - electron peak tracking 5 - electron full scan 6 - electron flux-angle mode 7 - electron calibration mode'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.'", "Units": " none", "FillValue": 255 } ] } } }