<_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/wi_k0_swe_rtn_00000000_v01.json (from all.xml) <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Wind Solar Wind Experiment, Key Parameters in RTN [PRELIM] <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description wi_k0_swe_RTN <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source SWE, a comprehensive plasma instrument for the WIND spacecraft, K.W. Ogilvie, et al., Space Sci. Rev., 71, 55-77, 1995.USE OF THE QUALITY VARIABLES: Quality flags are set in the analysis program that generates the KP data. Previous descriptions of their meaning were out of date.Good data is indicated by a quality flag of 0. The quality flags for each parameter are given as integers 4 bytes long (integer*4). The individual 'bits' for each quality value are set (or cleared) in the analysis code by adding (or subtracting) a power of 2 as follows: To set the 1st bit, add 1. To set the 2nd bit, add 2. To set the 3rd bit, add 4. To set the 4th bit, add 8, and so on. BIT TO_SET_BIT MEANING 1 +1 = 3 point parabolic fits to proton peaks were not attempted. 2 +2 = non-linear least squares fit was not attempted. 3 +4 = 3 point parabolic fits to proton peaks FAILED. 4 +8 = non-linear least squares fit FAILED. (Non-linear fit may be reported as good for protons and, at the same time, not good for alphas.) 5 +16 = Alpha params not valid for reason that the non-linear least squares fit was done for protons only. Not enough good energy channels to do simultaneous alpha fit. (This value applies to iqual_core(5) only.) 6 +32 = analysis code unable to get good value for spin period. 7 +64 = SWE instrument in mode 1 - calibration state. Key parameters not produced this mode, only in mode 1 - science. 8 +128 = 3 point fits done for cup 1 only. Split collector ratio of currents used to get n/s angle. Either cup 2 turned off, or cup 2 densities were low indicating noise associated with vibration. 9 +256 = fewer than 10 fc_blocks in spectrum. Analysis skipped. 10 +512 = Alpha non-linear fit produced values of thermal speed and density that do not seem reasonable. 11 +1024 = 3 point parabolic fits to proton peaks done for cup 2 only. Ratio of currents on split collectors used to get n/s angle. Probably Cup 1 is turned off. 12 +2048 = single width windows. Delta E over E 6/5% instead of the default 13%. 13 +4096 = tracking mode operation 14 +8192 = Limited tracking mode scan (Not a full scan)Comments: Non-linear fits are not done for Key Parameters (KPs), but those parameter values are excellent and should be used to do science; non-linear fits are available, but they have problems which suggest strongly that the KP parameters should be used (see paper by Kasper et al., 'Physics-based tests to identify the accuracy of solar wind ion measurements: A case study with the Wind Faraday Cups', J. Geophys. Res., 111, A03105, doi:101029/2005JA011442. Examples (note that all are even numbers because non-linear fits were not attempted) FLAG Meaning 4098 Tracking mode (4096) full scan + no non-linear (2) 14338 Limited tracking mode (8192) + Tracking mode (4096) See http://cdaweb.gsfc.nasa.gov/wind_swe_quality.html for the complete guide to the quality flag values. <_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/ WIND> Solar Wind Parameters <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 1994-11-01T12:00:00Z 2025-08-13T23:58:44Z <_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: Bennett Maruca at University of Delaware HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/wind/swe/swe_k0_rtn In CDF via HTTP from CDAWeb wi_k0_swe_rtn_%Y%m%d_%Q.cdf %Y WI_K0_SWE_RTN CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Bennett Maruca at University of Delaware FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/wind/swe/swe_k0_rtn In CDF via HTTP from CDAWeb wi_k0_swe_rtn_%Y%m%d_%Q.cdf %Y WI_K0_SWE_RTN CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Bennett Maruca at University of Delaware 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. WI_K0_SWE_RTN 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: Bennett Maruca at University of Delaware CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=WI_K0_SWE_RTN WI_K0_SWE_RTN 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: Bennett Maruca at University of Delaware CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/WI_K0_SWE_RTN/clientLibraryExample/ WI_K0_SWE_RTN 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: Bennett Maruca at University of Delaware 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=WI_K0_SWE_RTN WI_K0_SWE_RTN 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: Bennett Maruca at University of Delaware CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=WI_K0_SWE_RTN WI_K0_SWE_RTN 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: Bennett Maruca at University of Delaware CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=WI_K0_SWE_RTN&return=script WI_K0_SWE_RTN 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: Bennett Maruca at University of Delaware HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=WI_K0_SWE_RTN&format=gallery WI_K0_SWE_RTN Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Wind Interplanetary Plasma Laboratory (from all.xml/observatory/description/@short) Solar Wind Experiment (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Interplanetary Studies (from Master/CDFglobalAttributes/Discipline) WIND (from Master/CDFglobalAttributes/Source_name) Wind Interplanetary Plasma Laboratory (from Master/CDFglobalAttributes/Source_name) K0 (from Master/CDFglobalAttributes/Data_type) Key Parameter (from Master/CDFglobalAttributes/Data_type) SWE (from all.xml/instrument/@ID) Earth.Magnetosphere.Magnetotail Earth.Magnetosphere Earth.Magnetosheath Earth.NearSurface.AuroralRegion Earth.Magnetosphere.Main Heliosphere.NearEarth Earth.NearSurface.Plasmasphere Heliosphere.Inner Earth.NearSurface.PolarCap Heliosphere Time Epoch CATDESC: 'Time, centered, in NSSDC 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.' ms Scalar Temporal Time interval Delta_time Master CDF CATDESC: '1/2 time interval to collect data for parameters '. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' ms -1e+31 Time PB5 Time_PB5 Master CDF CATDESC: 'Time, centered, in GSFC PB5 format (yr, day, ms)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 3 year day msec Post Gap Flag GAP_FLAG Master CDF CATDESC: 'Post Gap Flag0=no gap immediately prior to this record; other:see 'Guidelines' '. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Instrument Mode MODE Master CDF CATDESC: 'Mode categories to be decided'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 S/C position in GSE SC_pos_gse Master CDF CATDESC: 'Wind s/c position, 3 comp. in GSE coord.'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km -1e+31 3 S/C position in GSM SC_pos_GSM Master CDF CATDESC: 'Wind s/c position, 3 comp. in GSM coord.'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km -1e+31 3 S/C radial distance SC_pos_R Master CDF CATDESC: 'Wind s/c radial distance to center of Earth, scalar'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km -1e+31 Quality Flag: Data DQF Master CDF CATDESC: 'Data Quality Flag: 0=good; 1=bad'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Quality Flag: Velocity QF_V Master CDF CATDESC: 'Velocity Quality Flag: 0=OK; 2 or 130 = caution; Other values NOT VALID'. Master CDF VAR_NOTES: 'Velocity Quality Flag: 0=OK; 2=parabolic 3-point fit only; 130=parabolic 3-point fit only, sensor 1 only, N/S angle zero degrees assumed; Other values NOT VALID'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Quality Flag: proton Vth QF_Vth Master CDF CATDESC: 'Proton thermal speed Quality Flag: 0=OK; 2 or 130 = caution; Other values NOT VALID'. Master CDF VAR_NOTES: 'Proton thermal speed Quality Flag: 0=OK; 2=parabolic 3-point fit only; 130=parabolic 3-point fit only, sensor 1 only, N/S angle zero degrees assumed; Other values NOT VALID'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Quality Flag: proton dens. QF_Np Master CDF CATDESC: 'Proton Density Quality Flag: 0=OK; 2 or 130 = caution; Other values NOT VALID'. Master CDF VAR_NOTES: 'Proton Density Quality Flag: 0=OK; 2=parabolic 3-point fit only; 130=parabolic 3-point fit only, sensor 1 only, N/S angle zero degrees assumed; Other values NOT VALID'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Quality Flag: Na/Np QF_ap Master CDF CATDESC: 'Na/Np Quality Flag: 0=OK; >0=NOT VALID'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -2147483648 Solar Wind Velocity (RTN) V_RTN Master CDF CATDESC: 'Solar Wind Velocity in RTN coord., 3 comp.'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km/s -1e+31 3 Bulk Flow, polar, (RTN) V_RTN_p Master CDF CATDESC: 'Ion Bulk Flow vector in RTN coord., 3 comp. (speed, E/W flow, N/S flow)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -1e+31 3 KM/S DEG DEG Proton thermal speed THERMAL_SPD Master CDF CATDESC: 'Solar Wind Most Probable Thermal Speed = sqrt(2kT/M), scalar'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km/s -1e+31 Proton density Np Master CDF CATDESC: 'Solar Wind Proton Number Density, scalar'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' #/cc -1e+31 Alpha_Percent Alpha_Percent Master CDF CATDESC: 'Percent of density due to alpha particles'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' % -1e+31