{"xsi:schemaLocation":"https://www.spase-group.org/data/schema https://www.spase-group.org/data/schema/spase-2.7.2.xsd","Version":"2.7.2","MetadataRightsList":{"Rights":{"SchemeURI":"https://spdx.org/licenses/","RightsIdentifierScheme":"SPDX","RightsIdentifier":"CC0-1.0","RightsURI":"https://spdx.org/licenses/CC0-1.0.html","RightsName":"Creative Commons Zero v1.0 Universal","Note":"CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions"}},"NumericalData":{"ResourceID":"spase://NASA/NumericalData/CNOFS/PLP/PT1S","NamingAuthority":"NASA","ResourceType":"NumericalData","ResourceHeader":{"ResourceName":"CNOFS PLP 1-sec plasma preliminary data","DOI":"https://doi.org/10.48322/xnnr-w563","ReleaseDate":"2026-10-23T12:50:55Z","RevisionHistory":{"RevisionEvent":[{"ReleaseDate":"2021-04-27T15:38:11Z","Note":"Only known prior ReleaseDate of the metadata"},{"ReleaseDate":"2023-07-30T12:34:56.789Z","Note":"Added DOI and PublicationInfo minted by LFB, metadata versioned up to SPASE 2.6.0, reviewed by LFB 20230727"},{"ReleaseDate":"2025-10-02T15:11:47Z","Note":"Updated PublishedBy name to match ROR Registry. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB"},{"ReleaseDate":"2025-12-04T13:29:03Z","Note":"Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB"},{"ReleaseDate":"2026-06-26T13:16:26Z","Note":"Add 'Z' to RevisionEvent:ReleaseDate(s), PublicationDate. ZCB"},{"ReleaseDate":"2026-07-21T12:04:43Z","Note":"Added HelioData InformationURL. JWL"},{"ReleaseDate":"2026-10-23T12:50:55Z","Note":"Added HelioCloud S3 AccessURL. Updated to 2.7.2. ZCB"}]},"Description":"Plasma structures at 400-850km altitudes in the equatorial ionosphere have been measured by the C/NOFS Planar Langmuir Probe (PLP). This PLP data set contains 1-sec resolution ion number density and its standard deviation, electron density, electron temperature, spacecraft potential, and spacecraft position in geodetic coordinates. As of 5/13/2010, the data were preliminary.","Acknowledgement":"the GSFC SPDF Team","PublicationInfo":{"Authors":"Pfaff, Robert, F.","PublicationDate":"2023-01-01T00:00:00Z","PublishedBy":"Space Physics Data Facility"},"Contact":[{"PersonID":"spase://SMWG/Person/Robert.F.Pfaff","Role":"GeneralContact"},{"PersonID":"spase://SMWG/Person/Lee.Frost.Bargatze","Role":"MetadataContact"}],"InformationURL":[{"Name":"C/NOFS PLP 1-s plasma parameter data","URL":"https://cdaweb.gsfc.nasa.gov/index.html","Description":"1-sec PLP avg key parameters preliminary data from CDAWeb"},{"Name":"HelioData","URL":"https://helio.data.nasa.gov/dataset/CNOFS_PLP_PT1S","Description":"The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more."}],"PriorID":["spase://VSPO/NumericalData/CNOFS_PLP_PLASMA_1SEC","spase://VSPO/NumericalData/CNOFS/PLP/PT1S"]},"AccessInformation":[{"RepositoryID":"spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb","Availability":"Online","AccessRights":"Open","RightsList":{"Rights":{"SchemeURI":"https://spdx.org/licenses/","RightsIdentifierScheme":"SPDX","RightsIdentifier":"CC0-1.0","RightsURI":"https://spdx.org/licenses/CC0-1.0.html","RightsName":"Creative Commons Zero v1.0 Universal","Note":"CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"}},"AccessURL":{"Name":"CDAWeb","URL":"https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=CNOFS_PLP_PLASMA_1SEC&index=sp_phys","ProductKey":"CNOFS_PLP_PLASMA_1SEC","Description":"Plots, lists and files from CDAWeb."},"Format":"Text","Acknowledgement":"the GSFC SPDF Team"},{"RepositoryID":"spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb","Availability":"Online","AccessRights":"Open","RightsList":{"Rights":{"SchemeURI":"https://spdx.org/licenses/","RightsIdentifierScheme":"SPDX","RightsIdentifier":"CC0-1.0","RightsURI":"https://spdx.org/licenses/CC0-1.0.html","RightsName":"Creative Commons Zero v1.0 Universal","Note":"CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"}},"AccessURL":{"Name":"CDAWeb HAPI Server","URL":"https://cdaweb.gsfc.nasa.gov/hapi","Style":"HAPI","ProductKey":"CNOFS_PLP_PLASMA_1SEC","Description":"Web Service to this product using the HAPI interface."},"Format":"CSV","Acknowledgement":"the GSFC SPDF Team"},{"RepositoryID":"spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb","Availability":"Online","AccessRights":"Open","RightsList":{"Rights":{"SchemeURI":"https://spdx.org/licenses/","RightsIdentifierScheme":"SPDX","RightsIdentifier":"CC0-1.0","RightsURI":"https://spdx.org/licenses/CC0-1.0.html","RightsName":"Creative Commons Zero v1.0 Universal","Note":"CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"}},"AccessURL":[{"Name":"FTPS from SPDF (not with most browsers)","URL":"ftps://spdf.gsfc.nasa.gov/pub/data/cnofs/plp/plasma_1sec/","Description":"In CDF via FTP from SPDF"},{"Name":"HTTPS from SPDF","URL":"https://spdf.gsfc.nasa.gov/pub/data/cnofs/plp/plasma_1sec/","Description":"In CDF via HTTP from SPDF"}],"Format":"CDF"},{"RepositoryID":"spase://SMWG/Repository/NASA/GSFC/SPDF","Availability":"Online","AccessRights":"Open","RightsList":{"Rights":{"SchemeURI":"https://spdx.org/licenses/","RightsIdentifierScheme":"SPDX","RightsIdentifier":"CC0-1.0","RightsURI":"https://spdx.org/licenses/CC0-1.0.html","RightsName":"Creative Commons Zero v1.0 Universal","Note":"CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products"}},"AccessURL":{"Name":"HelioCloud Catalog Endpoint","URL":"https://api.heliocloud.org/cloudcatalog?id=CNOFS_PLP_PLASMA_1SEC","Style":"Overview","ProductKey":"CNOFS_PLP_PLASMA_1SEC","Description":"Endpoint to access the data from HelioCloud. Data is split into one CSV file per year."},"Format":"CSV","Encoding":"S3_BUCKET","Acknowledgement":"the GSFC SPDF Team"}],"ProviderProcessingLevel":"Preliminary Calibrated","InstrumentID":"spase://SMWG/Instrument/CNOFS/PLP","MeasurementType":"ThermalPlasma","TemporalDescription":{"TimeSpan":{"StartDate":"2008-05-09T00:00:00.000Z","StopDate":"2008-09-14T18:34:58.000Z"},"Cadence":"PT1S"},"ObservedRegion":"Earth.NearSurface.Ionosphere","Caveats":"The data are PRELIMINARY, and as such, are intended for BROWSE PURPOSES ONLY. Continuous coverage not guaranteed; check the inventory graph for coverage."}}