<_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_or_def_00000000_v01.json (from all.xml) spase://NASA/NumericalData/ACE/Ephemeris/Definitive/P1D <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json ACE Daily GSE and J2000 GCI Position Data <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description AC_OR_DEF <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source ACE orbit data (daily values) in GSE and J2000 GCI coordinate systems <_Description>Source: Master/CDFglobalAttributes/TEXT <_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/ Please acknowledge the Principal Investigator, E. C. Stone of Caltech, USA ACE Attitude and Orbit Data Website https://izw1.caltech.edu/ACE/ASC/orbit.html ACE Attitude and Orbit Data Release Notes and Information <_Note>URL also in all.xml, master. Using InformationURL.json. Satellite Situation Center, SSCWeb, System and Services https://sscweb.gsfc.nasa.gov The Satellite Situation Center Web, SSCWeb, Service has been developed and is operated jointly by the NASA/GSFC Space Physics Data Facility, SPDF, and the National Space Science Data Center, NSSDC, to support a Range of NASA Science Programs and to fulfill Key International NASA Responsibilities including those of NSSDC and the World Data Center-A for Rockets and Satellites. The Software and associated Database of SSCWeb together form a System to cast Geocentric Spacecraft Location Information into a Framework of Empirical Geophysical Regions and Mappings of Spacecraft Locations along Lines of the Earth's Magnetic Field. This Capability is one Key to Mission Science Planning, both Single Missions and Coordinated Observations of Multiple Spacecraft with Ground-Based Investigations, and to subsequent Multi-Mission Data Analysis. <_Note>Source: InformationURL.json ACE> Orbit Parameters <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use https://doi.org/10.48322/mh1w-x115 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 1997-08-26T00:00:00Z 2026-07-21T00:00:00Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop P1D <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/ace/orbit/level_2_cdaweb/def_or/1997/ac_or_def_19970826_v01.cdf. The most common cadence, 86400000 [ms] = P1D, occurred for all 10066 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/Ephemeris Ephemeris See the rules of use available from the ACE Science Center at: http://www.srl.caltech.edu/ACE/ASC/level2/policy_lvl2.html spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: E. C. Stone at California Institute of Technology HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/ace/orbit/level_2_cdaweb/def_or In CDF via HTTP from CDAWeb ac_or_def_%Y%m%d_%Q.cdf %Y AC_OR_DEF CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: E. C. Stone at California Institute of Technology FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/ace/orbit/level_2_cdaweb/def_or In CDF via HTTP from CDAWeb ac_or_def_%Y%m%d_%Q.cdf %Y AC_OR_DEF CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: E. C. Stone at California Institute of Technology 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_OR_DEF 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: E. C. Stone at California Institute of Technology CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=AC_OR_DEF AC_OR_DEF 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: E. C. Stone at California Institute of Technology CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/AC_OR_DEF/clientLibraryExample/ AC_OR_DEF 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: E. C. Stone at California Institute of Technology 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=AC_OR_DEF AC_OR_DEF 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: E. C. Stone at California Institute of Technology CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=AC_OR_DEF AC_OR_DEF 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: E. C. Stone at California Institute of Technology CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=AC_OR_DEF&return=script AC_OR_DEF 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: E. C. Stone at California Institute of Technology HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=AC_OR_DEF&format=gallery AC_OR_DEF 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) Definitive Data (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) OR (from Master/CDFglobalAttributes/Data_type) Orbit (from Master/CDFglobalAttributes/Data_type) DEF (from all.xml/instrument/@ID) Heliosphere.Inner Heliosphere.NearEarth Heliosphere Time Epoch CATDESC: 'Time, beginning of interval'. 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 S/C position in GSE GSE_POS Master CDF CATDESC: 'ACE s/c position, 3 comp. in GSE coord.'. Master CDF VAR_NOTES: 'ACE s/c position, 3 comp. in GSE coord.'. 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 J2000 GCI GCI_POS Master CDF CATDESC: 'ACE s/c position, 3 comp. in J2000GCI coord.'. Master CDF VAR_NOTES: 'ACE s/c position, 3 comp. in J2000GCI coord.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km -1e+31 3