<_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/ac_k0_swe_00000000_v01.json (from all.xml) spase://NASA/NumericalData/ACE/SWEPAM/KeyParameter/PT5M <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json K0 - ACE Solar Wind Experiment 5-Minute Key Parameters [PRELIM] <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description AC_K0_SWE <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source SWEPAM - Solar Wind Electron Proton Alpha Monitor References: http://www.srl.caltech.edu/ACE/ACE browse data is designed for monitoring large scale particle and field behavior and for selecting interesting time periods. The data is automatically generated from the spacecraft data stream using simple algorithms provided by the instrument teams. It is not routinely checked for accuracy and is subject to revision. Use this data at your own risk, and consult with the appropriate instrument teams about citing it. SWEPAM Browse data is not validated by the experimenters and should not be used except for preliminary examination prior to detailed studies. <_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/ Rules of use, and caveats https://izw1.caltech.edu/ACE/ASC/level2/policy_lvl2.html ACE level 2 data rules of use, and caveats <_Note>Source: InformationURL.json ACE Science Center Home Page for Level 2 Data Release Notes https://izw1.caltech.edu/ACE/ASC/level2/index.html ACE Level 2 Data Release Notes Home Page <_Note>Source: InformationURL.json ACE SWEPAM Instrument Description https://doi.org/10.1023/A:1005040232597 McComas, D.J., Bame, S.J., Barker, P., Feldman, W.C., Phillips, J.L., Riley, P., and J.W. Griffee, Solar Wind Electron Proton Alpha Monitor (SWEPAM) for the Advanced Composition Explorer, Space Sci. Rev., 86, 563–612, 1998 <_Note>Source: InformationURL.json ACE> Solar Wind Parameters https://doi.org/10.48322/pfr6-fg57 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2017-07-01T00:00:00Z 2026-07-16T23:55:00Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT5M <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/ace/swepam/level_2_cdaweb/swe_k0/2017/ac_k0_swe_20170701_v01.cdf. The most common cadence, 300000 [ms] = PT5M, occurred for all 287 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/ACE/SWEPAM ThermalPlasma spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: D. J. McComas at Southwest Research Institute HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/ace/swepam/level_2_cdaweb/swe_k0 In CDF via HTTP from CDAWeb ac_k0_swe_%Y%m%d_%Q.cdf %Y AC_K0_SWE CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: D. J. McComas at Southwest Research Institute FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/ace/swepam/level_2_cdaweb/swe_k0 In CDF via HTTP from CDAWeb ac_k0_swe_%Y%m%d_%Q.cdf %Y AC_K0_SWE CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: D. J. McComas at Southwest Research Institute 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. AC_K0_SWE 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: D. J. McComas at Southwest Research Institute CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=AC_K0_SWE AC_K0_SWE 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: D. J. McComas at Southwest Research Institute CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/AC_K0_SWE/clientLibraryExample/ AC_K0_SWE 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: D. J. McComas at Southwest Research Institute 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=AC_K0_SWE AC_K0_SWE 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: D. J. McComas at Southwest Research Institute CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=AC_K0_SWE AC_K0_SWE 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: D. J. McComas at Southwest Research Institute CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=AC_K0_SWE&return=script AC_K0_SWE 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: D. J. McComas at Southwest Research Institute HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=AC_K0_SWE&format=gallery AC_K0_SWE Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Advanced Composition Explorer (from all.xml/observatory/description/@short) ACE Solar Wind Electron Proton Alpha Monitor (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Interplanetary Studies (from Master/CDFglobalAttributes/Discipline) AC (from Master/CDFglobalAttributes/Source_name) Advanced Composition Explorer (from Master/CDFglobalAttributes/Source_name) K0 (from Master/CDFglobalAttributes/Data_type) 5-Min Key Parameter [PRELIM] (from Master/CDFglobalAttributes/Data_type) SWE (from all.xml/instrument/@ID) Heliosphere.Inner Heliosphere.NearEarth Heliosphere Time Epoch CATDESC: 'Time, centered'. 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 PB5 Time_PB5 Master CDF CATDESC: 'Time of observation in Year, Day, & milliseconds (5 min)'. 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 Proton No. density Np Master CDF CATDESC: '[PRELIMINARY VALUES - BROWSE USE ONLY] Solar Wind Proton Number Density, scalar'. Master CDF VAR_NOTES: 'Np is the proton number density in units of cm-3, as calculated by integrating the ion distribution function. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' #/cc -1e+31 Solar Wind Proton Speed Vp Master CDF CATDESC: '[PRELIMINARY VALUES - BROWSE USE ONLY] Solar Wind Bulk Speed'. Master CDF VAR_NOTES: 'Vp is the solar wind proton speed, or more generally just the solar wind (bulk) speed. It is obtained by integrating the ion (proton) distribution function. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km/s -1e+31 He Ratio - He++/H+ He_ratio Master CDF CATDESC: '[PRELIMINARY VALUES - BROWSE USE ONLY] Percent of Helium++ ions to protons'. Master CDF VAR_NOTES: 'He_ratio is the ratio of the number density of helium++ ions to the number density of protons. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' % -1e+31 Proton Temperature Tpr Master CDF CATDESC: '[PRELIMINARY VALUES - BROWSE USE ONLY] radial component of the proton temperature'. Master CDF VAR_NOTES: 'The radial component of the proton temperature is the (1,1) component of the temperature tensor, along the radial direction. It is obtained by integration of the ion (proton) distribution function. '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' Kelvin -1e+31 Number in average (5 min) Weight Master CDF CATDESC: 'Number of measurements in average (5 min)'. Master CDF VAR_NOTES: ' '. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' -1e+31