<html xmlns="http://www.w3.org/1999/xhtml" xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <head>
        <meta content="672" name="orgcode"/>
        <meta content="Lan.Jian" name="rno"/>
        <meta content="Rita.C.Johnson" name="content-owner"/>
        <meta content="Rita.C.Johnson" name="webmaster"/>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
        <meta http-equiv="Cache-Control" content="max-age=86400"/>
        <title>SPASE Resource Description</title>
        <script type="application/ld+json">{
      "@context": "https://schema.org/",
      "@type" : "Dataset",
      "name": "DE 1 Plasma Waves Instrument (PWI) Low Frequency Receiver B data",
        "alternateName": "Dynamics Explorer 1 PWI LFC B data",
      "dateModified": "2026-07-21",
      
    "identifier": "https://doi.org/10.48322/18cz-mt87",
    "publication": "Gurnett, Donald A., DE 1 Plasma Waves Instrument (PWI) Low Frequency Receiver B data,  (2025)",
    "datePublished": "2025-11-14",
    "creator":{
       "@type": "Person",
           "name": "Gurnett, Donald A."
    },
    "publisher":{
    "@type": "Organization",
    "name": "University of California, Los Angeles"
    },
        
    "creditText": "NASA; Donald A. Gurnett",
    "description": "Plasma Waves Instrument Low Frequency Receiver B data",
    "abstract": "Plasma Waves Instrument Low Frequency Receiver B data",
    
        "spatialCoverage": [
      {
          "@type": "Place",
          "alternateName": "Earth.NearSurface.Ionosphere"
      },
      {
          "@type": "Place",
          "alternateName": "Earth.NearSurface.Plasmasphere"
      },
      {
          "@type": "Place",
          "alternateName": "Earth.NearSurface.PolarCap"
      }],
    
    "temporalCoverage": "1981-09-16T00:00:00Z/1984-06-24T00:00:00Z",

    "genre": "Waves",
    "keywords": [  "PWI", "LFC B", "Plasma Waves Instrument", "Low Frequency Receiver", "magnetosphere", "radiation belt" ],
    "license":  "https://cdla.io/permissive-1-0/",

    "audience":{
        "@type": "Audience",
        "audienceType": ["Space Physicist", "Space Community", "Data Scientists", "Machine Learning Users"]
    },
    "distribution": [
        { 
        "@type": "DataDownload",
        "encodingFormat": [
            "text/plain"
        ],
        "contentUrl": "http://vmo.igpp.ucla.edu/data1/DE1/PWI/LFCB/"
    }
    ],
    
    "variableMeasured": [
    {
          "@type": "PropertyValue",
          "name": "Universal Time",
          "description": "Universal Time columns from left to right are: yeardoy msec in the format of yyddd msec."
        },
       {
          "@type": "PropertyValue",
          "name": "DE1 Plasma Wave Instrument  Low Frequency Receiver B",
          "description": "PWI LFC B  frequencies in Hz",
          "unitText": "Hz" 
        },
       {
          "@type": "PropertyValue",
          "name": "DE1 Plasma Wave Instrument  Low Frequency Receiver B",
          "description": "PWI LFC B  electric field amplitude values in ((V/m)^2)/Hz. Note that the data files can be divided into multiple sections. Some for Ex values. Some for Ez, and some for B. The next column to the right indicates the measured value.",
          "unitText": "((V/m)^2)/Hz" 
        },
       {
          "@type": "PropertyValue",
          "name": "DE1 Plasma Wave Instrument Low Frequency Receiver B",
          "description": "PWI LFC B  magnetic field amplitude values in ((nT)^2)/Hz. Note that the data files can bedivided into multiple sections. Some for Ex values. Some for Ez, and some for B. The next column to the right indicates the measured value.",
          "unitText": "((nT)^2)/Hz" 
        },
       {
          "@type": "PropertyValue",
          "name": "DE1 Plasma Wave Instrument Low Frequency Receiver B",
          "description": "PWI LFC B Antenna(s) used for measurement: EX or EZ or ES. Nothing is measured. This is a flag to indicate the type of measurement made: EX, EZ, ES, and B."
        },
       {
          "@type": "PropertyValue",
          "name": "DE1 spacecraft position vector inerpolated to 1 sec resolution",
          "description": "Location of the spacecraft in magnetic coordinates in units of Re, Re, local time, and latitude"
        }
    ]
    
  
    }
    </script>
        <script type="application/rsl+xml">
            <rsl xmlns="https://rslstandard.org/rsl"><!--This license information is for the SPASE metadata only.  The actual data/software may be covered by a different license.-->
                <content url="">
                    <license>
                        <permits type="usage">all</permits>
                        <payment type="free">
                            <standard>https://spdx.org/licenses/CC0-1.0.html</standard>
                        </payment>
                    </license>
                </content>
            </rsl>
        </script>
        <xhtml:style xmlns:xhtml="http://www.w3.org/1999/xhtml">

* {
   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;
}
	  </xhtml:style>
        <xhtml:script xmlns:xhtml="http://www.w3.org/1999/xhtml">
	    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();
	  </xhtml:script>
    </head>
    <xhtml:body xmlns:xhtml="http://www.w3.org/1999/xhtml">
        <xhtml:div>
            <xhtml:a id="top"/>
        </xhtml:div>
        <xhtml:div class="usa-banner">
            <xhtml:p>
                <xhtml:img class="usa-banner__header-flag" height="10px" width="20px" src="/logos/us_flag_small.png" alt="USA flag"/> An official website of the United States government
                <xhtml:button class="usa-banner-button" onclick="toggle_usa_banner_details()">Here's how you know</xhtml:button> <xhtml:span id="usa-banner-indicator">v</xhtml:span>
            </xhtml:p>
            <xhtml:div id="usa-banner-details" style="display: none">
                <xhtml:div class="official-websites">
                    <xhtml:div>
                        <xhtml:img class="image-left" src="/logos/icon-dot-gov.svg" alt="dot gov icon"/>
                        <xhtml:p>
                            <xhtml:b>Official websites use .gov</xhtml:b>
                        </xhtml:p>
                        <xhtml:p>A <xhtml:b>.gov</xhtml:b> websites belongs to an official government organization in the United States</xhtml:p>
                    </xhtml:div>
                </xhtml:div>
                <xhtml:div class="secure-websites">
                    <xhtml:img class="image-left" src="/logos/icon-https.svg" alt="HTTPS icon"/>
                    <xhtml:p>
                        <xhtml:b>Secure .gov website use HTTPS</xhtml:b>
                    </xhtml:p>
                    <xhtml:p>A <xhtml:b>lock</xhtml:b> (<xhtml:img src="/logos/usa-banner-lock.svg" alt="lock icon"/>) or <xhtml:b>https://</xhtml:b> means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.</xhtml:p>
                </xhtml:div>
            </xhtml:div>
        </xhtml:div>
        <xhtml:div class="header">
            <xhtml:div class="middle">HDPWS</xhtml:div>
        </xhtml:div>
        <xhtml:div class="page">
            <xhtml:div class="spase">
                <xhtml:div class="abstract">
                    <xhtml:div class="access">
                        <xhtml:p class="box-title">
                    Data Access
                </xhtml:p>
                        <xhtml:ul class="list">
                            <xhtml:li class="list">
                                <xhtml:a target="_blank" href="http://vmo.igpp.ucla.edu/data1/DE1/PWI/LFCB/">Plasma Waves Instrument Low Frequency Receiver B Electric and Magnetic field data</xhtml:a>
                            </xhtml:li>
                        </xhtml:ul>
                    </xhtml:div>
                    <xhtml:div class="citation inset">
                        <xhtml:h1>
                            <xhtml:a name="spase://NASA/NumericalData/DE1/PWI/LFC/B/PT1S">DE 1 Plasma Waves Instrument (PWI) Low Frequency Receiver B data</xhtml:a>
                        </xhtml:h1>
                        <xhtml:p class="author">
                            <xhtml:script>
			  var authors='Gurnett, Donald A.'; 
			  document.write(authors);

			 </xhtml:script>
			(2025). 
			DE 1 Plasma Waves Instrument (PWI) Low Frequency Receiver B data. 
    
			[Data set].
		University of California, Los Angeles. 
			<xhtml:a href="https://doi.org/10.48322/18cz-mt87">https://doi.org/10.48322/18cz-mt87</xhtml:a>. Accessed on <xhtml:script>document.write(currentDateStr);</xhtml:script>.
                <xhtml:br/>
                            <xhtml:br/>
                Note: Proper references, including 
			<xhtml:button title="Copy BibTeX citation to clipboard" onclick="clipCitation('https://doi.org/10.48322/18cz-mt87')">Copy BibTeX Citation</xhtml:button>
			    or <xhtml:a href="https://citeas.org/cite/https://doi.org/10.48322/18cz-mt87">other formats</xhtml:a>, should include the "Accessed on date" to identify the version of the resource being cited in a given publication. 
            <xhtml:br/>
                        </xhtml:p>
                        <xhtml:p>
                            <xhtml:div class="term">ResourceID</xhtml:div>
                            <xhtml:div class="definition">spase://NASA/NumericalData/DE1/PWI/LFC/B/PT1S</xhtml:div>
                        </xhtml:p>
                        <xhtml:p>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Plasma Waves Instrument Low Frequency Receiver B data</xhtml:div>
                        </xhtml:p>
                        <xhtml:p>
                            <xhtml:div class="term">Metadata Rights</xhtml:div>
                            <xhtml:div class="definition">CC0-1.0: 
              <xhtml:a href="https://spdx.org/licenses/CC0-1.0.html" target="_blank">Creative Commons Zero v1.0 Universal</xhtml:a>
                                <xhtml:div class="term">Note</xhtml:div>
                                <xhtml:div class="definition">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.
              </xhtml:div>
                            </xhtml:div>
                        </xhtml:p>
                    </xhtml:div>
                </xhtml:div>
                <xhtml:div>
                    <xhtml:p class="right">
                        <xhtml:a target="_blank" href="/WS/hdp/1/Spase?ResourceID=spase://NASA/NumericalData/DE1/PWI/LFC/B/PT1S&amp;Format=spase_xml" download="PT1S.xml">View XML</xhtml:a> |
              <xhtml:a target="_blank" href="https://spase-editor.heliocloud.org/?edit=https://heliophysicsdata.gsfc.nasa.gov/WS/hdp/1/Spase?ResourceID=spase://NASA/NumericalData/DE1/PWI/LFC/B/PT1S&amp;Format=spase_xml">Edit</xhtml:a>
                    </xhtml:p>
                    <xhtml:h1 class="detail">Details</xhtml:h1>
                </xhtml:div>
                <xhtml:div>
                    <xhtml:div class="product">
                        <xhtml:p class="version">Version:2.7.1</xhtml:p>
                        <xhtml:h1>NumericalData</xhtml:h1>
                        <xhtml:div class="term">ResourceID</xhtml:div>
                        <xhtml:div class="definition">spase://NASA/NumericalData/DE1/PWI/LFC/B/PT1S</xhtml:div>
                        <xhtml:div class="term">NamingAuthority</xhtml:div>
                        <xhtml:div class="definition">NASA</xhtml:div>
                        <xhtml:div class="term">ResourceType</xhtml:div>
                        <xhtml:div class="definition">NumericalData</xhtml:div>
                        <xhtml:div class="term">ResourceHeader</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">ResourceName</xhtml:div>
                            <xhtml:div class="definition">DE 1 Plasma Waves Instrument (PWI) Low Frequency Receiver B data</xhtml:div>
                            <xhtml:div class="term">AlternateName</xhtml:div>
                            <xhtml:div class="definition">Dynamics Explorer 1 PWI LFC B data</xhtml:div>
                            <xhtml:div class="term">AlternateName</xhtml:div>
                            <xhtml:div class="definition">DE-A PWI LFC B data</xhtml:div>
                            <xhtml:div class="term">DOI</xhtml:div>
                            <xhtml:div class="definition">https://doi.org/10.48322/18cz-mt87</xhtml:div>
                            <xhtml:div class="term">ReleaseDate</xhtml:div>
                            <xhtml:div class="definition">2026-07-21 12:04:48Z</xhtml:div>
                            <xhtml:div class="term">RevisionHistory</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">RevisionEvent</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2025-05-02 21:14:31Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">Only known prior ReleaseDate of the metadata</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">RevisionEvent</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2025-11-14 16:03:08Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">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</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">RevisionEvent</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2025-12-04 13:29:06Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">Added MetadataRightsList. Updated to 2.7.1. ZCB</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">RevisionEvent</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2026-06-26 13:16:40Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">RevisionEvent</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2026-07-21 12:04:48Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">Added HelioData InformationURL. JWL</xhtml:div>
                                </xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Plasma Waves Instrument Low Frequency Receiver B data</xhtml:div>
                            <xhtml:div class="term">Acknowledgement</xhtml:div>
                            <xhtml:div class="definition">NASA; Donald A. Gurnett</xhtml:div>
                            <xhtml:div class="term">PublicationInfo</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Authors</xhtml:div>
                                <xhtml:div class="definition">Gurnett, Donald A.</xhtml:div>
                                <xhtml:div class="term">PublicationDate</xhtml:div>
                                <xhtml:div class="definition">2025-11-14 16:03:08Z</xhtml:div>
                                <xhtml:div class="term">PublishedBy</xhtml:div>
                                <xhtml:div class="definition">University of California, Los Angeles</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Contacts</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:table class="nested" cellspacing="0">
                                    <xhtml:tr>
                                        <xhtml:th/>
                                        <xhtml:th class="center">Role</xhtml:th>
                                        <xhtml:th class="center">Person</xhtml:th>
                                        <xhtml:th class="center">StartDate</xhtml:th>
                                        <xhtml:th class="center">StopDate</xhtml:th>
                                        <xhtml:th class="center">Note</xhtml:th>
                                    </xhtml:tr>
                                    <xhtml:tbody>
                                        <xhtml:tr>
                                            <xhtml:td>1.</xhtml:td>
                                            <xhtml:td>PrincipalInvestigator</xhtml:td>
                                            <xhtml:td>
                                                <xhtml:a target="_blank" href="https://spase-metadata.org/SMWG/Person/Donald.A.Gurnett.html">spase://SMWG/Person/Donald.A.Gurnett</xhtml:a>
                                            </xhtml:td>
                                            <xhtml:td/>
                                            <xhtml:td/>
                                            <xhtml:td/>
                                        </xhtml:tr>
                                        <xhtml:tr>
                                            <xhtml:td>2.</xhtml:td>
                                            <xhtml:td>MetadataContact</xhtml:td>
                                            <xhtml:td>
                                                <xhtml:a target="_blank" href="https://spase-metadata.org/SMWG/Person/James.M.Weygand.html">spase://SMWG/Person/James.M.Weygand</xhtml:a>
                                            </xhtml:td>
                                            <xhtml:td/>
                                            <xhtml:td/>
                                            <xhtml:td/>
                                        </xhtml:tr>
                                    </xhtml:tbody>
                                </xhtml:table>
                            </xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:p/>
                                <xhtml:p/>
                            </xhtml:div>
                            <xhtml:div class="term">InformationURL</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Name</xhtml:div>
                                <xhtml:div class="definition">NSSDC's Master Catalog on the Plasma Wave Instrument</xhtml:div>
                                <xhtml:div class="term">URL</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:a target="_blank" href="https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1981-070A-02">https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1981-070A-02</xhtml:a>
                                </xhtml:div>
                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">Introduction to the Plasma Wave Instrument on DE1</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">InformationURL</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Name</xhtml:div>
                                <xhtml:div class="definition">HelioData</xhtml:div>
                                <xhtml:div class="term">URL</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:a target="_blank" href="https://helio.data.nasa.gov/dataset/DE1_PWI_LFC_B_PT1S">https://helio.data.nasa.gov/dataset/DE1_PWI_LFC_B_PT1S</xhtml:a>
                                </xhtml:div>
                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">The HelioData dataset page provides an overview of the dataset with access links, associated variables, and more.</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">PriorIDs</xhtml:div>
                            <xhtml:div class="definition">spase://VMO/NumericalData/DE1/PWI/LFCB/PT1S</xhtml:div>
                            <xhtml:div class="definition">spase://VSPO/NumericalData/DE1/PWI/LFC/B/PT1S</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">AccessInformation</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">RepositoryID</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:a href="https://spase-metadata.org/SMWG/Repository/UCLA/DE1.html">spase://SMWG/Repository/UCLA/DE1</xhtml:a>
                            </xhtml:div>
                            <xhtml:div class="term">Availability</xhtml:div>
                            <xhtml:div class="definition">Online</xhtml:div>
                            <xhtml:div class="term">AccessRights</xhtml:div>
                            <xhtml:div class="definition">Open</xhtml:div>
                            <xhtml:div class="term">AccessURL</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Name</xhtml:div>
                                <xhtml:div class="definition">Plasma Waves Instrument Low Frequency Receiver B Electric and Magnetic field data</xhtml:div>
                                <xhtml:div class="term">URL</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:a target="_blank" href="http://vmo.igpp.ucla.edu/data1/DE1/PWI/LFCB/">http://vmo.igpp.ucla.edu/data1/DE1/PWI/LFCB/</xhtml:a>
                                </xhtml:div>
                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">This URL contains the DE1 PWI Step Frequency Receiver B Electric and Magnetic Field Data</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Format</xhtml:div>
                            <xhtml:div class="definition">Text</xhtml:div>
                            <xhtml:div class="term">Encoding</xhtml:div>
                            <xhtml:div class="definition">ASCII</xhtml:div>
                            <xhtml:div class="term">Acknowledgement</xhtml:div>
                            <xhtml:div class="definition">NASA;Donald.A.Gurnett</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">ProcessingLevel</xhtml:div>
                        <xhtml:div class="definition">Calibrated</xhtml:div>
                        <xhtml:div class="term">ProviderResourceName</xhtml:div>
                        <xhtml:div class="definition">Plasma Waves Instrument Low Frequency Receiver B</xhtml:div>
                        <xhtml:div class="term">ProviderProcessingLevel</xhtml:div>
                        <xhtml:div class="definition">Level-2</xhtml:div>
                        <xhtml:div class="term">InstrumentIDs</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:a target="_blank" href="https://spase-metadata.org/SMWG/Instrument/DynamicsExplorer1/PWI.html">spase://SMWG/Instrument/DynamicsExplorer1/PWI</xhtml:a>
                        </xhtml:div>
                        <xhtml:div class="term">MeasurementType</xhtml:div>
                        <xhtml:div class="definition">Waves</xhtml:div>
                        <xhtml:div class="term">TemporalDescription</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">TimeSpan</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">StartDate</xhtml:div>
                                <xhtml:div class="definition">1981-09-16 00:00:00Z</xhtml:div>
                                <xhtml:div class="term">StopDate</xhtml:div>
                                <xhtml:div class="definition">1984-06-24 00:00:00Z</xhtml:div>
                                <xhtml:div class="term">Note</xhtml:div>
                                <xhtml:div class="definition">Time format in data files is: milliseconds of the day</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1S</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Earth.NearSurface.Ionosphere</xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Earth.NearSurface.Plasmasphere</xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Earth.NearSurface.PolarCap</xhtml:div>
                        <xhtml:div class="term">Caveats</xhtml:div>
                        <xhtml:div class="definition">Flags=NaN</xhtml:div>
                        <xhtml:div class="term">Keywords</xhtml:div>
                        <xhtml:div class="definition">PWI</xhtml:div>
                        <xhtml:div class="definition">LFC B</xhtml:div>
                        <xhtml:div class="definition">Plasma Waves Instrument</xhtml:div>
                        <xhtml:div class="definition">Low Frequency Receiver</xhtml:div>
                        <xhtml:div class="definition">magnetosphere</xhtml:div>
                        <xhtml:div class="definition">radiation belt</xhtml:div>
                        <xhtml:div class="parameter">Parameter #1</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">Name</xhtml:div>
                            <xhtml:div class="definition">Universal Time</xhtml:div>
                            <xhtml:div class="term">ParameterKey</xhtml:div>
                            <xhtml:div class="definition">Time</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Universal Time columns from left to right are: yeardoy msec in the format of yyddd msec.</xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1S</xhtml:div>
                            <xhtml:div class="term">CoordinateSystem</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">CoordinateRepresentation</xhtml:div>
                                <xhtml:div class="definition">Cartesian</xhtml:div>
                                <xhtml:div class="term">CoordinateSystemName</xhtml:div>
                                <xhtml:div class="definition">MAG</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Structure</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Size</xhtml:div>
                                <xhtml:div class="definition">2</xhtml:div>
                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">Universal Time expressed using a 6-column day, month, year, hour, minute, second representation</xhtml:div>
                                <xhtml:div class="term">Element</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Name</xhtml:div>
                                    <xhtml:div class="definition">Year Day of Year</xhtml:div>
                                    <xhtml:div class="term">Index</xhtml:div>
                                    <xhtml:div class="definition">1</xhtml:div>
                                    <xhtml:div class="term">ParameterKey</xhtml:div>
                                    <xhtml:div class="definition">YearDOY</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">Element</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Name</xhtml:div>
                                    <xhtml:div class="definition">Milliseconds</xhtml:div>
                                    <xhtml:div class="term">Index</xhtml:div>
                                    <xhtml:div class="definition">2</xhtml:div>
                                    <xhtml:div class="term">ParameterKey</xhtml:div>
                                    <xhtml:div class="definition">MSec</xhtml:div>
                                </xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Support</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">SupportQuantity</xhtml:div>
                                <xhtml:div class="definition">Temporal</xhtml:div>
                            </xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="parameter">Parameter #2</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">Name</xhtml:div>
                            <xhtml:div class="definition">DE1 Plasma Wave Instrument  Low Frequency Receiver B</xhtml:div>
                            <xhtml:div class="term">ParameterKey</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B frequencies</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B  frequencies in Hz</xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1S</xhtml:div>
                            <xhtml:div class="term">Units</xhtml:div>
                            <xhtml:div class="definition">Hz</xhtml:div>
                            <xhtml:div class="term">CoordinateSystem</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">CoordinateRepresentation</xhtml:div>
                                <xhtml:div class="definition">Cartesian</xhtml:div>
                                <xhtml:div class="term">CoordinateSystemName</xhtml:div>
                                <xhtml:div class="definition">MAG</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Wave</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">WaveType</xhtml:div>
                                <xhtml:div class="definition">PlasmaWaves</xhtml:div>
                                <xhtml:div class="term">WaveQuantity</xhtml:div>
                                <xhtml:div class="definition">Frequency</xhtml:div>
                            </xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="parameter">Parameter #3</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">Name</xhtml:div>
                            <xhtml:div class="definition">DE1 Plasma Wave Instrument  Low Frequency Receiver B</xhtml:div>
                            <xhtml:div class="term">ParameterKey</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B electric field amplitude values</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B  electric field amplitude values in ((V/m)^2)/Hz. Note that the data files can be divided into multiple sections. Some for Ex values. Some for Ez, and some for B. The next column to the right indicates the measured value.</xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1S</xhtml:div>
                            <xhtml:div class="term">Units</xhtml:div>
                            <xhtml:div class="definition">((V/m)^2)/Hz</xhtml:div>
                            <xhtml:div class="term">CoordinateSystem</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">CoordinateRepresentation</xhtml:div>
                                <xhtml:div class="definition">Cartesian</xhtml:div>
                                <xhtml:div class="term">CoordinateSystemName</xhtml:div>
                                <xhtml:div class="definition">MAG</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Mixed</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">MixedQuantity</xhtml:div>
                                <xhtml:div class="definition">Other</xhtml:div>
                            </xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="parameter">Parameter #4</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">Name</xhtml:div>
                            <xhtml:div class="definition">DE1 Plasma Wave Instrument Low Frequency Receiver B</xhtml:div>
                            <xhtml:div class="term">ParameterKey</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B magnetic field amplitude values</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B  magnetic field amplitude values in ((nT)^2)/Hz. Note that the data files can bedivided into multiple sections. Some for Ex values. Some for Ez, and some for B. The next column to the right indicates the measured value.</xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1S</xhtml:div>
                            <xhtml:div class="term">Units</xhtml:div>
                            <xhtml:div class="definition">((nT)^2)/Hz</xhtml:div>
                            <xhtml:div class="term">CoordinateSystem</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">CoordinateRepresentation</xhtml:div>
                                <xhtml:div class="definition">Cartesian</xhtml:div>
                                <xhtml:div class="term">CoordinateSystemName</xhtml:div>
                                <xhtml:div class="definition">MAG</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Mixed</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">MixedQuantity</xhtml:div>
                                <xhtml:div class="definition">Other</xhtml:div>
                            </xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="parameter">Parameter #5</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">Name</xhtml:div>
                            <xhtml:div class="definition">DE1 Plasma Wave Instrument Low Frequency Receiver B</xhtml:div>
                            <xhtml:div class="term">ParameterKey</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B Antenna(s) used for measurement</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">PWI LFC B Antenna(s) used for measurement: EX or EZ or ES. Nothing is measured. This is a flag to indicate the type of measurement made: EX, EZ, ES, and B.</xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1S</xhtml:div>
                            <xhtml:div class="term">Support</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">SupportQuantity</xhtml:div>
                                <xhtml:div class="definition">Other</xhtml:div>
                            </xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="parameter">Parameter #6</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:div class="term">Name</xhtml:div>
                            <xhtml:div class="definition">DE1 spacecraft position vector inerpolated to 1 sec resolution</xhtml:div>
                            <xhtml:div class="term">ParameterKey</xhtml:div>
                            <xhtml:div class="definition">Position vector</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Location of the spacecraft in magnetic coordinates in units of Re, Re, local time, and latitude</xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1S</xhtml:div>
                            <xhtml:div class="term">CoordinateSystem</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">CoordinateRepresentation</xhtml:div>
                                <xhtml:div class="definition">Cartesian</xhtml:div>
                                <xhtml:div class="term">CoordinateSystemName</xhtml:div>
                                <xhtml:div class="definition">MAG</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Structure</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Size</xhtml:div>
                                <xhtml:div class="definition">4</xhtml:div>
                                <xhtml:div class="term">Element</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Name</xhtml:div>
                                    <xhtml:div class="definition">Geocentric Radial distance of spacecraft</xhtml:div>
                                    <xhtml:div class="term">Index</xhtml:div>
                                    <xhtml:div class="definition">1</xhtml:div>
                                    <xhtml:div class="term">ParameterKey</xhtml:div>
                                    <xhtml:div class="definition">GeocentricRadialDistance</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">Element</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Name</xhtml:div>
                                    <xhtml:div class="definition">L-Shell</xhtml:div>
                                    <xhtml:div class="term">Index</xhtml:div>
                                    <xhtml:div class="definition">2</xhtml:div>
                                    <xhtml:div class="term">ParameterKey</xhtml:div>
                                    <xhtml:div class="definition">L-ShellValue</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">Element</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Name</xhtml:div>
                                    <xhtml:div class="definition">MagneticLocalTime</xhtml:div>
                                    <xhtml:div class="term">Index</xhtml:div>
                                    <xhtml:div class="definition">3</xhtml:div>
                                    <xhtml:div class="term">ParameterKey</xhtml:div>
                                    <xhtml:div class="definition">MagneticLocalTime</xhtml:div>
                                </xhtml:div>
                                <xhtml:div class="term">Element</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Name</xhtml:div>
                                    <xhtml:div class="definition">MagneticLatitude</xhtml:div>
                                    <xhtml:div class="term">Index</xhtml:div>
                                    <xhtml:div class="definition">4</xhtml:div>
                                    <xhtml:div class="term">ParameterKey</xhtml:div>
                                    <xhtml:div class="definition">MagneticLatitude</xhtml:div>
                                </xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Support</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">SupportQuantity</xhtml:div>
                                <xhtml:div class="definition">Positional</xhtml:div>
                            </xhtml:div>
                        </xhtml:div>
                    </xhtml:div>
                </xhtml:div>
            </xhtml:div>
        </xhtml:div>
        <xhtml:div class="footer">
            <xhtml:div class="footer">
                <xhtml:img class="image-left" src="/logos/nasa-logo.svg" alt="NASA Insignia"/>
                <xhtml:div class="footer-item">Contact SPDF: <xhtml:a style="all:revert" href="mailto:NASA-SPDF-Support@nasa.onmicrosoft.com?subject=HDPWS SPASE">NASA-SPDF Feedback/Support</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">Responsible NASA Official: <xhtml:a style="all: revert" href="mailto:Lan.Jian@nasa.gov">Lan Jian</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">Site Editor: <xhtml:a style="all:revert" href="mailto:NASA-SPDF-Support@nasa.onmicrosoft.com">Rita Johnson</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://ror.org/00ryjtt64">SPDF ROR ID</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://www.re3data.org/repository/r3d100010168">SPDF re3data ID</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://www.nasa.gov/about/">About NASA</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://www.nasa.gov/accessibility/">Accessibility</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://www.nasa.gov/foia/">FOIA</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://www.nasa.gov/no-fear-act/">No FEAR Act</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://www.nasa.gov/privacy/">Privacy Policy</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:a style="all:revert" href="https://www.nasa.gov/vulnerability-disclosure-policy/">Vulnerability Disclosure Policy</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">
                    <xhtml:span>Last Updated: 2026-07-21</xhtml:span>
                </xhtml:div>
            </xhtml:div>
        </xhtml:div>
    </xhtml:body>
</html>