<_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/sta_l1_sit_00000000_v01.json (from all.xml) spase://NASA/NumericalData/STEREO-A/IMPACT/SIT/L1/PT1M <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json STEREO Ahead IMPACT/SIT Level 1 Data. <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description sta_l1_sit <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source The file contains Level 1 IMPACT(In-situ Measurements of Particles and CME Transients)/SIT data from the STEREO Ahead spacecraft. <_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://sprg.ssl.berkeley.edu/impact STEREO/IMPACT PI Site Experiment and Data descriptions at <_Note>URL also in all.xml. Using master. http://epact2.gsfc.nasa.gov/STEREO/SIT_description_V_2-9.pdf SIT description SIT Instrument description paper <_Note>URL also in all.xml. Using master. https://izw1.caltech.edu/STEREO/docs/SIT_Level1.html regarding is of SIT data Caveats and notes <_Note>URL also in all.xml. Using master. STEREO/SIT site at Caltech http://www.srl.caltech.edu/STEREO/docs/SIT_Level1.html <_Note>Source: InformationURL.json CDAWeb Skeleton Table https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0SKELTABLES/sta_l1_sit_00000000_v01.skt <_Note>Source: InformationURL.json https://doi.org/10.48322/sp7s-tp20 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2007-03-15T00:00:32Z 2026-04-30T23:59:08Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT1M <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/stereo/ahead/l1/impact/sit/2007/sta_l1_sit_20070315_v03.cdf. The most common cadence, 60000 [ms] = PT1M, occurred for all 1439 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/STEREO-A/IMPACT/SIT EnergeticParticles spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Christina Lee at UCB/SSL HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/stereo/ahead/l1/impact/sit In CDF via HTTP from CDAWeb sta_l1_sit_%Y%m%d_%Q.cdf %Y STA_L1_SIT CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Christina Lee at UCB/SSL FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/stereo/ahead/l1/impact/sit In CDF via HTTP from CDAWeb sta_l1_sit_%Y%m%d_%Q.cdf %Y STA_L1_SIT CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Christina Lee at UCB/SSL 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. STA_L1_SIT 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: Christina Lee at UCB/SSL CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=STA_L1_SIT STA_L1_SIT 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: Christina Lee at UCB/SSL CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/STA_L1_SIT/clientLibraryExample/ STA_L1_SIT 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: Christina Lee at UCB/SSL 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=STA_L1_SIT STA_L1_SIT 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: Christina Lee at UCB/SSL CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=STA_L1_SIT STA_L1_SIT 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: Christina Lee at UCB/SSL CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=STA_L1_SIT&return=script STA_L1_SIT 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: Christina Lee at UCB/SSL HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=STA_L1_SIT&format=gallery STA_L1_SIT Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Solar Terrestrial Relations Observatory Ahead of the Sun-Earth Line (from all.xml/observatory/description/@short) Suprathermal Ion Telescope (from all.xml/instrument/description/@short) Solar Physics (from Master/CDFglobalAttributes/Discipline) Heliospheric Physics (from Master/CDFglobalAttributes/Discipline) sta (from Master/CDFglobalAttributes/Source_name) Solar Terrestrial Relations Observatory Ahead of the Sun-Earth Line (from Master/CDFglobalAttributes/Source_name) L1 (from Master/CDFglobalAttributes/Data_type) Level 1 (from Master/CDFglobalAttributes/Data_type) SIT (from all.xml/instrument/@ID) Heliosphere.Remote1AU Epoch Epoch CATDESC: 'Time since 0 AD'. 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 H Intensity H_Intensity Master CDF CATDESC: 'H (proton) Intensity in 12 energy ranges'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 12 H Sigma Uncertainty H_Sigma Master CDF CATDESC: '--> H (proton) uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 12 3He Intensity He3_Intensity Master CDF CATDESC: '3He Intensity in 10 energy ranges'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 10 3He Sigma Uncertainty He3_Sigma Master CDF CATDESC: '--> 3He uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 10 4He Intensity He4_Intensity Master CDF CATDESC: '4He Intensity in 16 energy ranges'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 16 4He Sigma Uncertainty He4_Sigma Master CDF CATDESC: '--> 4He uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 16 C Intensity C_Intensity Master CDF CATDESC: 'C (carbon) Intensity in 17 energy ranges'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 17 C Sigma Uncertainty C_Sigma Master CDF CATDESC: '--> C (carbon) uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 17 O Intensity O_Intensity Master CDF CATDESC: 'O (oxygen) Intensity in 16 energy ranges'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 16 O Sigma Uncertainty O_Sigma Master CDF CATDESC: '--> O (oxygen) uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 16 NeS Intensity NeS_Intensity Master CDF CATDESC: 'NeS (neon through sulfur) Intensity in 16 energy ranges'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 16 NeS Sigma Uncertainty NeS_Sigma Master CDF CATDESC: '--> NeS (neon through sulfur) uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 16 Fe Intensity Fe_Intensity Master CDF CATDESC: 'Fe (iron) Intensity in 14 energy ranges'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 14 Fe Sigma Uncertainty Fe_Sigma Master CDF CATDESC: '--> Fe (iron) uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 14 UH Intensity UH_Intensity Master CDF CATDESC: 'UH (ultra-heavy) Intensity in 6 energy ranges'. Master CDF VAR_NOTES: 'Primarily due to background'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 6 UH Sigma Uncertainty UH_Sigma Master CDF CATDESC: '--> UH (ultra-heavy) uncertainty in intensity expressed as sigma due to counting statistics'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' particles/(s cm2 sr MeV/n) -1e+31 6