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      "dateModified": "2025-12-04",
      
    "identifier": "https://doi.org/10.48322/4qc4-7006",
    "publication": "McComas, David J., IBEX-Lo Histograms,  (2025)",
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        <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="ftps://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/">FTPS from SPDF (not with most browsers)</xhtml:a>
                            </xhtml:li>
                            <xhtml:li class="list">
                                <xhtml:a target="_blank" href="https://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/">HTTPS from SPDF</xhtml:a>
                            </xhtml:li>
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                        <xhtml:h1>
                            <xhtml:a name="spase://NASA/NumericalData/IBEX/Lo/Histograms">IBEX-Lo Histograms</xhtml:a>
                        </xhtml:h1>
                        <xhtml:p class="author">
                            <xhtml:script>
			  var authors='McComas, David J.'; 
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			 </xhtml:script>
			(2025). 
			IBEX-Lo Histograms. 
    
			[Data set].
		Space Physics Data Facility. 
			<xhtml:a href="https://doi.org/10.48322/4qc4-7006">https://doi.org/10.48322/4qc4-7006</xhtml:a>. Accessed on <xhtml:script>document.write(currentDateStr);</xhtml:script>.
                <xhtml:br/>
                            <xhtml:br/>
                Note: Proper references, including 
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			    or <xhtml:a href="https://citeas.org/cite/https://doi.org/10.48322/4qc4-7006">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/IBEX/Lo/Histograms</xhtml:div>
                        </xhtml:p>
                        <xhtml:p>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Each record captures the number of arriving ENA's
of a specific energy band, coincidence type, species (hydrogen or 
oxygen) and spin phase.  Data for each full ~15s spacecraft spin 
are given at each of 60 spin phases in sequential records, with 
the J2000 right ascension and declination for look directions 
corresponding to each spin phase being given in the corresponding 
record.  Also included in each record are a time tag (seconds since 
00:00 UT of January 6, 1980), the IBEX location, ENA energy band,
species and coincidence type.  Data files are given for each 8-day 
orbit and for each of the 8 IBEX-Lo energy bands.  The data files 
are in ASCII.</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>
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                <xhtml:div>
                    <xhtml:p class="right">
                        <xhtml:a target="_blank" href="/WS/hdp/1/Spase?ResourceID=spase://NASA/NumericalData/IBEX/Lo/Histograms&amp;Format=spase_xml" download="Histograms.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/IBEX/Lo/Histograms&amp;Format=spase_xml">Edit</xhtml:a>
                    </xhtml:p>
                    <xhtml:h1 class="detail">Details</xhtml:h1>
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                    <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/IBEX/Lo/Histograms</xhtml:div>
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                        <xhtml:div class="definition">NASA</xhtml:div>
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                            <xhtml:div class="term">ResourceName</xhtml:div>
                            <xhtml:div class="definition">IBEX-Lo Histograms</xhtml:div>
                            <xhtml:div class="term">DOI</xhtml:div>
                            <xhtml:div class="definition">https://doi.org/10.48322/4qc4-7006</xhtml:div>
                            <xhtml:div class="term">ReleaseDate</xhtml:div>
                            <xhtml:div class="definition">2025-12-04 13:29:29Z</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">2021-03-11 18:39:11Z</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 16:02:23Z</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 13:29:29Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB</xhtml:div>
                                </xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Each record captures the number of arriving ENA's
of a specific energy band, coincidence type, species (hydrogen or 
oxygen) and spin phase.  Data for each full ~15s spacecraft spin 
are given at each of 60 spin phases in sequential records, with 
the J2000 right ascension and declination for look directions 
corresponding to each spin phase being given in the corresponding 
record.  Also included in each record are a time tag (seconds since 
00:00 UT of January 6, 1980), the IBEX location, ENA energy band,
species and coincidence type.  Data files are given for each 8-day 
orbit and for each of the 8 IBEX-Lo energy bands.  The data files 
are in ASCII.</xhtml:div>
                            <xhtml:div class="term">Acknowledgement</xhtml:div>
                            <xhtml:div class="definition">The IBEX Team</xhtml:div>
                            <xhtml:div class="term">PublicationInfo</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Authors</xhtml:div>
                                <xhtml:div class="definition">McComas, David J.</xhtml:div>
                                <xhtml:div class="term">PublicationDate</xhtml:div>
                                <xhtml:div class="definition">2025-11-14 16:02:23Z</xhtml:div>
                                <xhtml:div class="term">PublishedBy</xhtml:div>
                                <xhtml:div class="definition">Space Physics Data Facility</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Contacts</xhtml:div>
                            <xhtml:div class="definition">
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                                        <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/David.J.McComas.html">spase://SMWG/Person/David.J.McComas</xhtml:a>
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                                            <xhtml:td/>
                                            <xhtml:td/>
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                            <xhtml:div class="term">InformationURL</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Name</xhtml:div>
                                <xhtml:div class="definition">Readme file at SPDF</xhtml:div>
                                <xhtml:div class="term">URL</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:a target="_blank" href="https://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/TS_description.txt">https://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/TS_description.txt</xhtml:a>
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                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">This file was created by the IBEX team.</xhtml:div>
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                            <xhtml:div class="term">PriorIDs</xhtml:div>
                            <xhtml:div class="definition">spase://VEPO/NumericalData/IBEX/Lo/Histograms</xhtml:div>
                            <xhtml:div class="definition">spase://VSPO/NumericalData/IBEX/Lo/Histograms</xhtml:div>
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                            <xhtml:div class="term">RepositoryID</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:a href="https://spase-metadata.org/SMWG/Repository/NASA/GSFC/SPDF.html">spase://SMWG/Repository/NASA/GSFC/SPDF</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">RightsList</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Rights</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">SchemeURI</xhtml:div>
                                    <xhtml:div class="definition">https://spdx.org/licenses/</xhtml:div>
                                    <xhtml:div class="term">RightsIdentifierScheme</xhtml:div>
                                    <xhtml:div class="definition">SPDX</xhtml:div>
                                    <xhtml:div class="term">RightsIdentifier</xhtml:div>
                                    <xhtml:div class="definition">CC0-1.0</xhtml:div>
                                    <xhtml:div class="term">RightsURI</xhtml:div>
                                    <xhtml:div class="definition">https://spdx.org/licenses/CC0-1.0.html</xhtml:div>
                                    <xhtml:div class="term">RightsName</xhtml:div>
                                    <xhtml:div class="definition">Creative Commons Zero v1.0 Universal</xhtml:div>
                                    <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 NASA Heliophysics data products</xhtml:div>
                                </xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">AccessURL</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Name</xhtml:div>
                                <xhtml:div class="definition">FTPS from SPDF (not with most browsers)</xhtml:div>
                                <xhtml:div class="term">URL</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:a target="_blank" href="ftps://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/">ftps://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/</xhtml:a>
                                </xhtml:div>
                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">Directory with energy-range-specific subdirectories</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">AccessURL</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Name</xhtml:div>
                                <xhtml:div class="definition">HTTPS from SPDF</xhtml:div>
                                <xhtml:div class="term">URL</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:a target="_blank" href="https://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/">https://spdf.gsfc.nasa.gov/pub/data/ibex/release3/lo/time_series/histograms/</xhtml:a>
                                </xhtml:div>
                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">In CDF via HTTP from SPDF</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Format</xhtml:div>
                            <xhtml:div class="definition">Text</xhtml:div>
                            <xhtml:div class="term">DataExtent</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Quantity</xhtml:div>
                                <xhtml:div class="definition">5</xhtml:div>
                                <xhtml:div class="term">Units</xhtml:div>
                                <xhtml:div class="definition">GB</xhtml:div>
                                <xhtml:div class="term">Per</xhtml:div>
                                <xhtml:div class="definition">P1Y</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Acknowledgement</xhtml:div>
                            <xhtml:div class="definition">The IBEX Team</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">InstrumentIDs</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:a target="_blank" href="https://spase-metadata.org/SMWG/Instrument/IBEX/Lo.html">spase://SMWG/Instrument/IBEX/Lo</xhtml:a>
                        </xhtml:div>
                        <xhtml:div class="term">MeasurementType</xhtml:div>
                        <xhtml:div class="definition">NeutralAtomImages</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">2008-12-25 00:00:00</xhtml:div>
                                <xhtml:div class="term">StopDate</xhtml:div>
                                <xhtml:div class="definition">2009-06-19 00:00:00</xhtml:div>
                                <xhtml:div class="term">Note</xhtml:div>
                                <xhtml:div class="definition">Data are planned for 6-month releases.  However,
				Release_2 contained only IBEX-Hi map data.  Extensions to later times for this data set may be forthcoming in the future.</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT6M</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Heliosphere.Heliosheath</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">ENA arrival direction</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">ENA arrival direction</xhtml:div>
                            <xhtml:div class="term">Units</xhtml:div>
                            <xhtml:div class="definition">deg</xhtml:div>
                            <xhtml:div class="term">CoordinateSystem</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">CoordinateRepresentation</xhtml:div>
                                <xhtml:div class="definition">Spherical</xhtml:div>
                                <xhtml:div class="term">CoordinateSystemName</xhtml:div>
                                <xhtml:div class="definition">J2000</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Particle</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">ParticleType</xhtml:div>
                                <xhtml:div class="definition">Atom</xhtml:div>
                                <xhtml:div class="term">ParticleQuantity</xhtml:div>
                                <xhtml:div class="definition">ArrivalDirection</xhtml:div>
                                <xhtml:div class="term">AtomicNumber</xhtml:div>
                                <xhtml:div class="definition">1</xhtml:div>
                                <xhtml:div class="term">AtomicNumber</xhtml:div>
                                <xhtml:div class="definition">8</xhtml:div>
                                <xhtml:div class="term">EnergyRange</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Low</xhtml:div>
                                    <xhtml:div class="definition">0.01</xhtml:div>
                                    <xhtml:div class="term">High</xhtml:div>
                                    <xhtml:div class="definition">2.0</xhtml:div>
                                    <xhtml:div class="term">Units</xhtml:div>
                                    <xhtml:div class="definition">keV</xhtml:div>
                                </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">ENA counts</xhtml:div>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">ENA counts of specific energy band, coincidence
type, and spin phase (look direction)</xhtml:div>
                            <xhtml:div class="term">Particle</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">ParticleType</xhtml:div>
                                <xhtml:div class="definition">Atom</xhtml:div>
                                <xhtml:div class="term">ParticleQuantity</xhtml:div>
                                <xhtml:div class="definition">Counts</xhtml:div>
                                <xhtml:div class="term">AtomicNumber</xhtml:div>
                                <xhtml:div class="definition">1</xhtml:div>
                                <xhtml:div class="term">AtomicNumber</xhtml:div>
                                <xhtml:div class="definition">8</xhtml:div>
                                <xhtml:div class="term">EnergyRange</xhtml:div>
                                <xhtml:div class="definition">
                                    <xhtml:div class="term">Low</xhtml:div>
                                    <xhtml:div class="definition">0.01</xhtml:div>
                                    <xhtml:div class="term">High</xhtml:div>
                                    <xhtml:div class="definition">2.0</xhtml:div>
                                    <xhtml:div class="term">Units</xhtml:div>
                                    <xhtml:div class="definition">keV</xhtml:div>
                                </xhtml:div>
                            </xhtml:div>
                        </xhtml:div>
                    </xhtml:div>
                </xhtml:div>
            </xhtml:div>
        </xhtml:div>
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                <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:Robert.M.Candey@nasa.gov">Robert M. Candey</xhtml:a>
                </xhtml:div>
                <xhtml:div class="footer-item">Site Editor: <xhtml:a style="all:revert" href="mailto:NASA-SPDF-Support@nasa.onmicrosoft.com">Tami Kovalick</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>
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                <xhtml:div class="footer-item">
                    <xhtml:span>Last Updated: 2025-12-04</xhtml:span>
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