SPASE Resource Description

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} function getVersionedBibTeX(bibtex) { /* Add version field as suggested by August (Gus) Muench, Journals Data Editor, American Astronomical Society (email dated 7/7/25) */ const accessVersion = ", version={Accessed on " + currentIsoDateStr + "}"; const modifiedBibtex = bibtex.substring(0, bibtex.lastIndexOf("}")) + accessVersion + "}"; return modifiedBibtex; } function getBlob(text) { return new Blob([text], { type: "text/plain"}); } function clipboardAlert(text) { alert(text + "\nCopied to clipboard"); } function clipCitation(doi) { document.body.style.cursor = 'wait'; let url = "https://citation.doi.org/format?doi=" + doi.replace("https://doi.org/", "") + String.fromCodePoint(38) + "style=bibtex" + String.fromCodePoint(38) + "lang=en-US"; const text = new ClipboardItem({ "text/plain": fetch(url) .then(getResponseText) .then(getVersionedBibTeX) .then(getBlob) }); navigator.clipboard.write([text]); text.getType("text/plain") .then(getResponseText) .then(clipboardAlert); } function toggle_usa_banner_details() { const details = document.getElementById("usa-banner-details"); const indicator = document.getElementById("usa-banner-indicator"); if (details.style.display === "none") { details.style.display = "block"; indicator.textContent = "^"; } else { details.style.display = "none"; indicator.textContent = "v"; } } const monthName=new Array("January","February","March","April","May","June","July","August","September","October","November","December"); let currentDate = new Date(); let currentIsoDateStr = currentDate.toISOString().substring(0, 10); let currentDateStr = currentDate.getFullYear() + '-' + monthName[currentDate.getMonth()] + '-' + currentDate.getDate(); Data Access FTPS from SPDF (not with most browsers) HTTPS from SPDF CDAWeb WebService: CDAWeb Programmatic Data Access HAPI: CDAWeb HAPI Server Gold Level L2 Peak Electron Density var authors='Eastes, Richard'; document.write(authors); (2025). Gold Level L2 Peak Electron Density. [Data set]. Space Physics Data Facility. https://doi.org/10.48322/2pmw-ee13. Accessed on document.write(currentDateStr);. Note: Proper references, including Copy BibTeX Citation or other formats, should include the "Accessed on date" to identify the version of the resource being cited in a given publication. ResourceID spase://NASA/NumericalData/GOLD/L2/NMAX/PT900S Description The GOLD night disk scan (NI1) measurements are used to derive the peak electron density (NMAX, electrons/cm3) on the disk. GOLD performs NI1 scans in both hemispheres from 17:00 to 21:00 hours spacecraft local time each night. NMAX is retrieved on a 2D rectangular (latitude vs. longitude) grid of fixed dimensions for each scan. However, the actual latitude and longitude values in the grid vary from scan to scan as the NI1 sequence utilizes a pattern of short (15 minute) localized scans that progress from east to west across the disk throughout the sequence. Metadata Rights CC0-1.0: Creative Commons Zero v1.0 Universal Note CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions. The actual data/software may be subject to a different license. View XML | Edit Details Version:2.7.1 NumericalData ResourceID spase://NASA/NumericalData/GOLD/L2/NMAX/PT900S NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName Gold Level L2 Peak Electron Density DOI https://doi.org/10.48322/2pmw-ee13 ReleaseDate 2026-06-26 13:17:02Z RevisionHistory RevisionEvent ReleaseDate 2020-09-14 16:47:17Z Note Only known prior ReleaseDate of the metadata RevisionEvent ReleaseDate 2023-10-09 12:34:56.789Z Note Added complete CDAWeb and HAPI AccessInformation, metadata versioned up to SPASE 2.6.0, LFB 20231009 RevisionEvent ReleaseDate 2025-11-14 16:03:02Z Note Added PublicationInfo. 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 RevisionEvent ReleaseDate 2025-12-04 13:29:18Z Note Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB RevisionEvent ReleaseDate 2026-06-26 13:17:02Z Note Add 'Z' to RevisionEvent:ReleaseDate(s), TemporalDescription:TimeSpan:StartDate. ZCB Description The GOLD night disk scan (NI1) measurements are used to derive the peak electron density (NMAX, electrons/cm3) on the disk. GOLD performs NI1 scans in both hemispheres from 17:00 to 21:00 hours spacecraft local time each night. NMAX is retrieved on a 2D rectangular (latitude vs. longitude) grid of fixed dimensions for each scan. However, the actual latitude and longitude values in the grid vary from scan to scan as the NI1 sequence utilizes a pattern of short (15 minute) localized scans that progress from east to west across the disk throughout the sequence. Acknowledgement National Aeronautics and Space Administration; Dr. Richard Eastes PublicationInfo Authors Eastes, Richard PublicationDate 2025-11-14 16:03:02Z PublishedBy Space Physics Data Facility Contacts Role Person StartDate StopDate Note 1. PrincipalInvestigator spase://SMWG/Person/Richard.Eastes 2. MetadataContact spase://SMWG/Person/James.M.Weygand InformationURL Name GOLD Homepage web page URL https://gold.cs.ucf.edu/ Description GOLD web page with news and other information InformationURL Name GOLD Missions Space Science Reviews Article URL https://doi.org/10.1007/s11214-017-0392-2 Description Eastes, R.W., McClintock, W.E., Burns, A.G. et al. Space Sci. Rev. (2017) vol. 212, pp.383. PriorIDs spase://VSPO/NumericalData/GOLD/L2/NMAX/PT900S spase://NASA/NumericalData/SES-14/GOLD/L2/NMAX/PT900S 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 FTPS from SPDF (not with most browsers) URL ftps://spdf.gsfc.nasa.gov/pub/data/gold/level2/nmax/ ProductKey GOLD_L2_NMAX Description In CDF via ftps from SPDF AccessURL Name HTTPS from SPDF URL https://spdf.gsfc.nasa.gov/pub/data/gold/level2/nmax/ ProductKey GOLD_L2_NMAX Description In CDF via https from SPDF AccessURL Name CDAWeb URL https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=GOLD_L2_NMAX&index=sp_phys ProductKey GOLD_L2_NMAX Description Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb Format CDF Encoding None AccessDirectoryTemplate https://cdaweb.gsfc.nasa.gov/pub/data/gold/level2/nmax/$Y AccessFilenameTemplate gold_l2_nmax_2018_278_v05_r01_c01.nc Acknowledgement Space Physics Data Facility of the NASA Goddard Space Flight Center; Robert M. Candey AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Online AccessRights Open AccessURL Name CDAWeb Programmatic Data Access URL https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/GOLD_L2_NMAX/clientLibraryExample/ Style WebService ProductKey GOLD_L2_NMAX Description Access to this data from common programming environments. Note: this AccessInformation element was added by HDPWS. Format Binary Acknowledgement Space Physics Data Facility of the NASA Goddard Space Flight Center; Robert M. Candey 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 HAPI Server URL https://cdaweb.gsfc.nasa.gov/hapi Style HAPI ProductKey GOLD_L2_NMAX Description Web Service to this product using the HAPI interface Format CSV Acknowledgement Space Physics Data Facility of the NASA Goddard Space Flight Center; Robert M. Candey ProcessingLevel Calibrated ProviderName GOLD ProviderResourceName Gold Level L2 Molecular Oxygen Density Profile ProviderProcessingLevel Level 2 ProviderVersion 1 InstrumentIDs spase://SMWG/Instrument/GOLD MeasurementType ImageIntensity TemporalDescription TimeSpan StartDate 2018-10-06 00:00:00Z RelativeStopDate P1D Cadence PT900S ObservedRegion Earth.NearSurface.Ionosphere Keywords O relative to N2 GOLD SES-14 Parameter #1 Name Mask Defining OI 1356 Bandpass ParameterKey mask_oi_1356 Description Wavelength mask defining the 135.6-nm emission passband Cadence PT900S Structure Size 4001 ValidMin 0 ValidMax 1 FillValue -2147483647 Support SupportQuantity Other Parameter #2 Name Mask Wavelength ParameterKey mask_wavelength Description Wavelength grid for 1356 mask Cadence PT900S Units nm Structure Size 4001 ValidMin 130 ValidMax 170 FillValue 9.9692e+36 Wave WaveType Photon Qualifier Scalar WaveQuantity Wavelength Parameter #3 Name OI 1356 brightness ParameterKey radiance_oi_1356 Description Radiance in Oxygen 135.6-nm bandpass Cadence PT900S Units Rayleighs/nm Structure Size 51 100 6 ValidMin 0 ValidMax 100000 FillValue 9.9692e+36 Wave WaveType Photon Qualifier Scalar WaveQuantity Intensity Parameter #4 Name GOLD channel ParameterKey channel Description GOLD channel ('A' or 'B') Cadence PT900S Structure Size 50 6 Support Qualifier Scalar SupportQuantity Other Parameter #5 Name Random Uncertainty in NMAX ParameterKey nmax_unc_ran Description Random uncertainty in retrieved peak electron density Cadence PT900S Units electrons/cm^3 Structure Size 51 100 6 ValidMin 0 ValidMax 1000000000 FillValue 9.9692e+36 Support Qualifier Uncertainty SupportQuantity Other Parameter #6 Name Model Uncertainty in NMAX ParameterKey nmax_unc_mod Description Model uncertainty in retrieved peak electron density Cadence PT900S Units electrons/cm^3 Structure Size 51 100 6 ValidMin 0 ValidMax 1000000000 FillValue 9.9692e+36 Support Qualifier Uncertainty SupportQuantity Other Parameter #7 Name Latitude ParameterKey latitude Description Pixel latitude Cadence PT900S Units degrees Structure Size 51 100 6 ValidMin -90 ValidMax 90 FillValue 9.9692e+36 Support Qualifier Direction SupportQuantity Positional Parameter #8 Name Random Uncertainty in Oxygen 135.6 nm Brightness ParameterKey oi_1356_unc_ran Description Random uncertainty in oxygen 135.6 nm brightness Cadence PT900S Units Rayleighs/nm Structure Size 51 100 6 ValidMin 0 ValidMax 100000 FillValue 9.9692e+36 Wave WaveType Photon Qualifier Uncertainty WaveQuantity Intensity Parameter #9 Name Counts in Oxygen Bandpass ParameterKey counts_oi_1356 Description Counts in Oxygen 135.6-nm bandpass Cadence PT900S Units counts Structure Size 51 100 6 ValidMin 0 ValidMax 100000 FillValue 9.9692e+36 Support Qualifier Scalar SupportQuantity Other Parameter #10 Name Overall Quality Flag ParameterKey dqi Description NMAX data quality index (see table below) Cadence PT900S Structure Size 6 ValidMin 0 ValidMax 2147483647 FillValue -2147483647 Support Qualifier Scalar SupportQuantity Other Parameter #11 Name Scan Start Time ParameterKey scan_start_time Description UTC start time of scan, e.g., 2017-06-21T23:46:38.015Z Cadence PT900S Structure Size 50 6 FillValue ' ' Support Qualifier Magnitude SupportQuantity Temporal Parameter #12 Name NMAX Quality Flag ParameterKey nmax_dqi Description NMAX data quality index (see table below) Cadence PT900S Structure Size 50 100 6 ValidMin 0 ValidMax 2147483647 FillValue -2147483647 Support Qualifier Scalar SupportQuantity Other Parameter #13 Name Solar Zenith Angle at 225 km ParameterKey solar_zenith_angle Description Solar zenith angle at 225 km tangent point Cadence PT900S Units degrees Structure Size 51 100 6 ValidMin 0 ValidMax 180 FillValue 9.9692e+36 Support Qualifier Direction SupportQuantity Positional Parameter #14 Name Longitude ParameterKey longitude Description Pixel longitude Cadence PT900S Units degrees Structure Size 51 100 6 ValidMin -180 ValidMax 180 FillValue 9.9692e+36 Support Qualifier Direction SupportQuantity Positional Parameter #15 Name UTC time ParameterKey time_utc Description UTC date/time string: "2017-06-21T23:46:38.015Z" Cadence PT900S Structure Size 50 51 6 FillValue ' ' Support Qualifier Magnitude SupportQuantity Temporal Parameter #16 Name NMAX ParameterKey nmax_unc_mod Description Retrieved peak electron density Cadence PT900S Units electrons/cm^3 Structure Size 51 100 6 ValidMin 0 ValidMax 1000000000 FillValue 9.9692e+36 Support Qualifier Uncertainty SupportQuantity Other Parameter #17 Name L1C File Name ParameterKey input_l1c_file Description L1C file name for each occultation Cadence PT900S Structure Size 50 6 FillValue ' ' Support Qualifier Scalar SupportQuantity Other Parameter #18 Name Pixel Emission Angle ParameterKey emission_angle Description Pixel emission angle (relative to zenith) Cadence PT900S Units degrees Structure Size 51 100 6 ValidMin 0 ValidMax 90 FillValue 9.9692e+36 Support Qualifier Direction SupportQuantity Positional Parameter #19 Name Scan Stop Time ParameterKey scan_stop_time Description UTC stop time of scan, e.g., 2017-06-21T23:46:38.015Z Cadence PT900S Units date/time Structure Size 50 6 FillValue ' ' Support Qualifier Magnitude SupportQuantity Temporal Parameter #20 Name Systematic Uncertainty in Oxygen 135.6 nm Brightness ParameterKey oi_1356_unc_sys Description Systematic uncertainty in oxygen 135.6 nm brightness Cadence PT900S Units Rayleighs Structure Size 51 100 6 ValidMin 0 ValidMax 100000 FillValue 9.9692e+36 Wave WaveType Photon Qualifier Uncertainty WaveQuantity Intensity Parameter #21 Name Hemisphere Scanned ParameterKey hemisphere Description Hemisphere scanned ('N' or 'S') Cadence PT900S Structure Size 50 6 FillValue ' ' Support Qualifier Scalar SupportQuantity Other