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    "abstract": "These interplanetary magnetic field data from the Mariner 10 Fluxgate Magnetometer consist of hourly averaged magnetic field vectors in Heliographic RTN coordinates in ASCII format. The data were extracted with the FORTRAN code M10MAGHR.for from VMS binary data in NSSDC Data Set\n73-085A-04P.  Each file consists of ASCII records, one line per record. Each line consists of a two digit year, a decimal day of year (1 Jan. = Day 1), hour of the day of the data interval, \nthe radial, tangential, and normal components of the magnetic field (in heliographic RTN coordinates), and the magnitude of the magnetic field.  Magnetic field units are nanoTelsa (1 Gauss = 100,000 nT).  Data are available for 1973-1974.",
    
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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="https://spdf.gsfc.nasa.gov/pub/data/mariner/mariner10/magnetic_fields/ip_hour_ascii/">FTP access to files at SPDF</xhtml:a>
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                    <xhtml:div class="citation inset">
                        <xhtml:h1>
                            <xhtml:a name="spase://NASA/NumericalData/Mariner10/MAG/PT1H">Mariner 10 Magnetometer 1-hr Data</xhtml:a>
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                        <xhtml:p class="author">
                            <xhtml:script>
			  var authors='Ness, Norman F.'; 
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			(2025). 
			Mariner 10 Magnetometer 1-hr Data. 
    
			[Data set].
		Space Physics Data Facility. 
			<xhtml:a href="https://doi.org/10.48322/p9rg-gm86">https://doi.org/10.48322/p9rg-gm86</xhtml:a>. Accessed on <xhtml:script>document.write(currentDateStr);</xhtml:script>.
                <xhtml:br/>
                            <xhtml:br/>
                Note: Proper references, including 
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                        <xhtml:p>
                            <xhtml:div class="term">ResourceID</xhtml:div>
                            <xhtml:div class="definition">spase://NASA/NumericalData/Mariner10/MAG/PT1H</xhtml:div>
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                        <xhtml:p>
                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">These interplanetary magnetic field data from the Mariner 10 Fluxgate Magnetometer consist of hourly averaged magnetic field vectors in Heliographic RTN coordinates in ASCII format. The data were extracted with the FORTRAN code M10MAGHR.for from VMS binary data in NSSDC Data Set
73-085A-04P.  Each file consists of ASCII records, one line per record. Each line consists of a two digit year, a decimal day of year (1 Jan. = Day 1), hour of the day of the data interval, 
the radial, tangential, and normal components of the magnetic field (in heliographic RTN coordinates), and the magnitude of the magnetic field.  Magnetic field units are nanoTelsa (1 Gauss = 100,000 nT).  Data are available for 1973-1974.</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.
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                        <xhtml:a target="_blank" href="/WS/hdp/1/Spase?ResourceID=spase://NASA/NumericalData/Mariner10/MAG/PT1H&amp;Format=spase_xml" download="PT1H.xml">View XML</xhtml:a> |
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                    <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/Mariner10/MAG/PT1H</xhtml:div>
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                            <xhtml:div class="definition">Mariner 10 Magnetometer 1-hr Data</xhtml:div>
                            <xhtml:div class="term">DOI</xhtml:div>
                            <xhtml:div class="definition">https://doi.org/10.48322/p9rg-gm86</xhtml:div>
                            <xhtml:div class="term">ReleaseDate</xhtml:div>
                            <xhtml:div class="definition">2026-07-21 12:05:41Z</xhtml:div>
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                                    <xhtml:div class="definition">2020-07-07 21:14:59Z</xhtml:div>
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                                    <xhtml:div class="definition">Only known prior ReleaseDate of the metadata</xhtml:div>
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                                    <xhtml:div class="definition">2025-11-14 16:02:52Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">Added PublicationInfo. Added ResourceType and NamingAuthority. ZCB</xhtml:div>
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                                    <xhtml:div class="definition">2025-12-04 13:29:52Z</xhtml:div>
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                                    <xhtml:div class="definition">2026-02-12 23:59:21Z</xhtml:div>
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                                    <xhtml:div class="definition">Added DOI. tlk</xhtml:div>
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                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2026-06-26 13:24:16Z</xhtml:div>
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                                    <xhtml:div class="definition">Add 'Z' to TemporalDescription:TimeSpan:StartDate, TemporalDescription:TimeSpan:StopDate. ZCB</xhtml:div>
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                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2026-07-21 12:05:41Z</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">These interplanetary magnetic field data from the Mariner 10 Fluxgate Magnetometer consist of hourly averaged magnetic field vectors in Heliographic RTN coordinates in ASCII format. The data were extracted with the FORTRAN code M10MAGHR.for from VMS binary data in NSSDC Data Set
73-085A-04P.  Each file consists of ASCII records, one line per record. Each line consists of a two digit year, a decimal day of year (1 Jan. = Day 1), hour of the day of the data interval, 
the radial, tangential, and normal components of the magnetic field (in heliographic RTN coordinates), and the magnitude of the magnetic field.  Magnetic field units are nanoTelsa (1 Gauss = 100,000 nT).  Data are available for 1973-1974.</xhtml:div>
                            <xhtml:div class="term">Acknowledgement</xhtml:div>
                            <xhtml:div class="definition">Please acknowledge Dr. Norman F. Ness, the Principal Investigator, and
NSSDC for usage of this data set in presentations and publications.</xhtml:div>
                            <xhtml:div class="term">PublicationInfo</xhtml:div>
                            <xhtml:div class="definition">
                                <xhtml:div class="term">Authors</xhtml:div>
                                <xhtml:div class="definition">Ness, Norman F.</xhtml:div>
                                <xhtml:div class="term">PublicationDate</xhtml:div>
                                <xhtml:div class="definition">2025-11-14 16:02:52Z</xhtml:div>
                                <xhtml:div class="term">PublishedBy</xhtml:div>
                                <xhtml:div class="definition">Space Physics Data Facility</xhtml:div>
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                            <xhtml:div class="term">Contacts</xhtml:div>
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                                        <xhtml:th class="center">Role</xhtml:th>
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                                        <xhtml:th class="center">StartDate</xhtml:th>
                                        <xhtml:th class="center">StopDate</xhtml:th>
                                        <xhtml:th class="center">Note</xhtml:th>
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                                        <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/Norman.F.Ness.html">spase://SMWG/Person/Norman.F.Ness</xhtml:a>
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                                            <xhtml:td/>
                                            <xhtml:td/>
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                                        <xhtml:tr>
                                            <xhtml:td>2.</xhtml:td>
                                            <xhtml:td>GeneralContact</xhtml:td>
                                            <xhtml:td>
                                                <xhtml:a target="_blank" href="https://spase-metadata.org/SMWG/Person/John.F.Cooper.html">spase://SMWG/Person/John.F.Cooper</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">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/Mariner10_MAG_PT1H">https://helio.data.nasa.gov/dataset/Mariner10_MAG_PT1H</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://VSPO/NumericalData/Mariner10/MAG/PT1H</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/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">FTP access to files 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/mariner/mariner10/magnetic_fields/ip_hour_ascii/">https://spdf.gsfc.nasa.gov/pub/data/mariner/mariner10/magnetic_fields/ip_hour_ascii/</xhtml:a>
                                </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/mariner/mariner10/magnetic_fields/ip_hour_ascii/">https://spdf.gsfc.nasa.gov/pub/data/mariner/mariner10/magnetic_fields/ip_hour_ascii/</xhtml:a>
                                </xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Format</xhtml:div>
                            <xhtml:div class="definition">Text</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">ProviderProcessingLevel</xhtml:div>
                        <xhtml:div class="definition">CALIBRATED</xhtml:div>
                        <xhtml:div class="term">InstrumentIDs</xhtml:div>
                        <xhtml:div class="definition">
                            <xhtml:a target="_blank" href="https://spase-metadata.org/SMWG/Instrument/Mariner10/Magnetometer.html">spase://SMWG/Instrument/Mariner10/Magnetometer</xhtml:a>
                        </xhtml:div>
                        <xhtml:div class="term">MeasurementType</xhtml:div>
                        <xhtml:div class="definition">MagneticField</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">1973-11-03 00:00:00Z</xhtml:div>
                                <xhtml:div class="term">StopDate</xhtml:div>
                                <xhtml:div class="definition">1974-09-18 00:00:00Z</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1H</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Heliosphere.Inner</xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Mercury</xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Venus</xhtml:div>
                    </xhtml:div>
                </xhtml:div>
            </xhtml:div>
        </xhtml:div>
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            <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.gov?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.gov">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>
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                    <xhtml:a style="all:revert" href="https://www.nasa.gov/about/">About NASA</xhtml:a>
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                <xhtml:div class="footer-item">
                    <xhtml:span>Last Updated: 2026-07-21</xhtml:span>
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