Name: ISEE 1 LEPEDEA Distribution Functions, offline at NSSDC
License: https://spdx.org/licenses/CC0-1.0.html

* { margin: 0; padding: 0; border: 0; outline: 0; font-size: 100%; vertical-align: baseline; background: transparent; } body { background-color: #f0f0f0; // #eaf5e9; #277bc0; #d3d3f9; color: black; font-family: Verdana, Arial, sans-serif; font-size:12px; line-height: 1.2; } h1,h2,h3,h4,h5,h6 { margin-top: 10px; margin-bottom: 10px; font-weight:bold; } h1 { font-size: 140%; } h2 { font-size: 120%; } h3 { font-size: 110%; font-style: oblique; } p { margin-bottom: 0.75ex; } a:link, a:visited { color: #277bc0;/* #339;*/ font-weight:bolder; text-decoration:none; } a:hover { color: blue; font-weight:bolder; text-decoration:underline; } ul { list-style: square inside ; margin-bottom: 0.75ex; } table { border: thin solid #666; margin-top: 5px; margin-bottom: 10px; } table.nested { margin-left: 2em; } thead,tbody { border: thin solid #666; } td, th { margin: 0; padding: 2px 2px 2px 2px; } th { font-style: oblique; } h1.detail { } .header { width:100%; padding: 1em 10px 1em 10px; color: #fff; background: #5e87b0; font-weight: bold; text-shadow: 0 /*{b-bar-shadow-x}*/ 1px /*{b-bar-shadow-y}*/ 1px /*{b-bar-shadow-radius}*/ #3e6790 /*{b-bar-shadow-color}*/; text-align: center; font-size: 16px; display: block; text-overflow: ellipsis; overflow: hidden; white-space: nowrap; outline: 0 !important; } .usa-banner { padding-left: 10px; overflow: hidden; } .official-websites { float: left; width: 50%; } .secure-websites { float: left; width: 50%; } .image-left { float: left; margin-right: 10px; } .footer { width: 100%; padding: 1em 10px 1em 10px; /* color: #fff; */ color: Black; background: #5e87b0; font-weight: bold; font-size: 16px; display: table; } div.footer-item { float: left; padding-left: 1em; padding-right: 1em; } /* this does not work a.footer-item:link { all: revert; } a.footer-item:visited { all: revert; } a.footer-item:hover { all: revert; } */ .inset { margin-left: 22%; } .page { padding: 10px 3% 10px 3%; } div.indent { margin-left: 2em; } div.term { margin-top: 5px; padding-left: 5px; border-top: 1px solid #DDD; font-weight: bold; } div.definition { margin-left: 5ex; } div.value { margin-left: 5ex; } div.product { background-color: white; border: thin solid #333; padding: 10px 15px 10px 15px; margin-top: 10px; } div.parameter { margin-top: 10px; padding: 5px 10px 10px 10px; border: thin dotted #333; background-color: #ebebeb; } #toc { border: thin solid #333; background-color: #F5F5F5; padding: 10px 15px 10px 15px; margin-left: 5%; margin-right: 5%; margin-bottom: 30px; } #toc ol, ul, li { padding-left: 5ex; } #toc ol { list-style-type: decimal; list-style-position: inside; } #toc ul { list-style-type: square; list-style-position: inside; } p.version { float: right; width: 100%; margin-top: 5px; text-align: right; font-size: x-small; } p.right { float: right; text-align: right; } .box-title { font-size: 120%; font-weight:bold; text-align: center; border-bottom: 1px solid #DDD; } ul.list { list-style-position: outside; padding-left: 1.5em; } li.list { text-align: left; padding-left: 0px; } .no-break { white-space: nowrap; } p.author { font-size: 120%; } div.brand { width: 100%; text-align: right; } div.abstract { display: table; position: relative; width: 100%; } div.citation { } div.access { float: left; width: 20%; background-color: white; border: thin solid #333; padding: 5px 5px 5px 5px; margin-right: 1em; } a.xml-logo:link, a.xml-logo:visited { background: #ff6600; color: #ffffff; font-weight:bolder; text-decoration:none; padding-left:2px; padding-right:2px; } a.xml-logo:hover { text-decoration:underline; } button { background-color: #5e87b0; border: none; /* 2px solid black; */ border-radius: 8px; color: white; padding: 3px 5px; text-align: center; text-decoration: none; display: inline-block; } button.usa-banner-button { background-color: initial; border: initial; border-radius: initial; color: initial; padding: initial; text-align: initial; text-decoration: underline; display: initial; } async function getResponseText(response) { document.body.style.cursor = 'default'; return await response.text(); } 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 NSSDC ISEE 1 LEPEDEA Distribution Functions, offline at NSSDC ResourceID spase://NASA/NumericalData/ISEE1/LEPEDEA/PT128S Description This data set consists of three-dimensional proton and electron distribution functions. The energy range is 1 eV to 45 keV or 215 eV to 45 keV, according to mode. Time resolution for full distributions is 128 sec or 512 sec, depending on telemetry bit rate. Eight latitude and 16 azimuth bins are used, spanning 180 deg and 360 deg. Spacecraft position information is included. Data are currently in VAX binary format. Data are for discrete intervals 11/01/1977-12/31/1980, 10/15/1982-12/27/1983, 03/01/1986-06/01/1986 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/ISEE1/LEPEDEA/PT128S NamingAuthority NASA ResourceType NumericalData ResourceHeader ResourceName ISEE 1 LEPEDEA Distribution Functions, offline at NSSDC ReleaseDate 2026-06-26 13:18:05Z RevisionHistory RevisionEvent ReleaseDate 2020-07-07 21:14:39Z Note Only known prior ReleaseDate of the metadata RevisionEvent ReleaseDate 2025-12-04 13:29:37Z Note Added MetadataRightsList and RightsList(s). Added ResourceType and NamingAuthority. Updated to 2.7.1. ZCB RevisionEvent ReleaseDate 2026-06-26 13:18:05Z Note Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB Description This data set consists of three-dimensional proton and electron distribution functions. The energy range is 1 eV to 45 keV or 215 eV to 45 keV, according to mode. Time resolution for full distributions is 128 sec or 512 sec, depending on telemetry bit rate. Eight latitude and 16 azimuth bins are used, spanning 180 deg and 360 deg. Spacecraft position information is included. Data are currently in VAX binary format. Data are for discrete intervals 11/01/1977-12/31/1980, 10/15/1982-12/27/1983, 03/01/1986-06/01/1986 Contacts Role Person StartDate StopDate Note 1. DataProducer spase://SMWG/Person/Cheryl.Y.Huang InformationURL Name NSSDC Master Catalog URL https://nssdc.gsfc.nasa.gov/nmc/dataset/display.action?id=SPMS-00308 PriorIDs spase://VSPO/NumericalData/SPMS-00308 spase://VSPO/NumericalData/ISEE1/LEPEDEA/PT128S AccessInformation RepositoryID spase://SMWG/Repository/NASA/GSFC/SPDF Availability Offline 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 NSSDC URL https://nssdc.gsfc.nasa.gov/nssdc/obtaining_data.html Format Binary DataExtent Quantity 15 Units GB Acknowledgement Please acknowledge the PI, Dr. Louis Frank, the data preparer, Dr. Cheryl Huang, and the NSSDC ProcessingLevel Calibrated InstrumentIDs spase://SMWG/Instrument/ISEE1/LEPEDEA MeasurementType EnergeticParticles TemporalDescription TimeSpan StartDate 1977-11-01 00:00:00Z StopDate 1986-06-01 00:00:00Z Note There are no data for 1/1/1981-10/14/1982 or for 12/28/1983-02/28/86. Cadence PT128S ObservedRegion Earth.Magnetosheath ObservedRegion Earth.Magnetosphere ObservedRegion Heliosphere.NearEarth Parameter #1 Name Proton distribution function Description proton fluxes at 32 energy steps, 16 azimuthal directions and 5 (1977-1980) or 6 (1982-1986) latitudinal look directions. Cadence PT128S Structure Size 32 16 5 Description The proton distribution is distributed across 32 records, one per energy step. Each record contains 2 (protons, electrons) x 16 x 5 (1977-1980; x 6 for 1982-1986) values. Particle ParticleType Proton ParticleQuantity NumberFlux EnergyRange Low 1 High 45000 Units eV Parameter #2 Name Electron distribution function Description electon fluxes at 32 energy steps, 16 azimuthal directions and 5 (1977-1980) or 6 (1982-1986) latitudinal look directions. Cadence PT128S Structure Size 32 16 5 Description The electon distribution is distributed across 32 records, one per energy step. Each record contains 2 (protons, electrons) x 16 x 5 (1977-1980; x 6 for 1982-1986) values. Particle ParticleType Electron ParticleQuantity NumberFlux EnergyRange Low 1 High 45000 Units eV Parameter #3 Name Spacecraft location Description GSE x,y,z components of position vector Cadence PT128S Units km CoordinateSystem CoordinateRepresentation Cartesian CoordinateSystemName GSE Structure Size 3 Description GSE x,y,z components of position vector Support SupportQuantity Positional