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                <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
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            <xhtml:div class="middle">HDPWS</xhtml:div>
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                    Data Access
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                                <xhtml:a target="_blank" href="http://stereo.ssl.berkeley.edu/data.html">IMPACT data site at UCB</xhtml:a>
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                            <xhtml:a name="spase://NASA/NumericalData/STEREO-B/IMPACT/PT1M">STEREO-B multi-instrument Level 1 IMPACT data from UCB</xhtml:a>
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			(2025). 
			STEREO-B multi-instrument Level 1 IMPACT data from UCB. 
    
			[Data set].
		University of California, Berkeley. 
			<xhtml:a href="https://doi.org/10.48322/wk25-2t19">https://doi.org/10.48322/wk25-2t19</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/wk25-2t19">other formats</xhtml:a>, should include the "Accessed on date" to identify the version of the resource being cited in a given publication. 
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                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Level 1 data from each of the several IMPACT instruments,
in CDF.  Time resolutions range from 0.125s (MAG) to 1m (SEPT, LET, HET).
Full spectral and directional resolution is preserved in the data. Links 
are also given on the page to browse plots and to sites with data in ASCII 
format for some specific instruments.</xhtml:div>
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                        <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:h1 class="detail">Details</xhtml:h1>
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                        <xhtml:p class="version">Version:2.7.1</xhtml:p>
                        <xhtml:h1>NumericalData</xhtml:h1>
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                            <xhtml:div class="definition">STEREO-B multi-instrument Level 1 IMPACT data from UCB</xhtml:div>
                            <xhtml:div class="term">DOI</xhtml:div>
                            <xhtml:div class="definition">https://doi.org/10.48322/wk25-2t19</xhtml:div>
                            <xhtml:div class="term">ReleaseDate</xhtml:div>
                            <xhtml:div class="definition">2026-02-16 14:46:06Z</xhtml:div>
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                                    <xhtml:div class="definition">2020-07-07 21:15:22Z</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="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2025-11-14 16:03:05Z</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="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2025-12-04 13:31:37Z</xhtml:div>
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                                    <xhtml:div class="term">ReleaseDate</xhtml:div>
                                    <xhtml:div class="definition">2026-02-16 14:46:06Z</xhtml:div>
                                    <xhtml:div class="term">Note</xhtml:div>
                                    <xhtml:div class="definition">Added DOI. TLK</xhtml:div>
                                </xhtml:div>
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                            <xhtml:div class="term">Description</xhtml:div>
                            <xhtml:div class="definition">Level 1 data from each of the several IMPACT instruments,
in CDF.  Time resolutions range from 0.125s (MAG) to 1m (SEPT, LET, HET).
Full spectral and directional resolution is preserved in the data. Links 
are also given on the page to browse plots and to sites with data in ASCII 
format for some specific instruments.</xhtml:div>
                            <xhtml:div class="term">Acknowledgement</xhtml:div>
                            <xhtml:div class="definition">Principal Investigator Janet Luhmann, and key person(s)
for the instrument(s) whose data you are using. (cf. web site)</xhtml:div>
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                                <xhtml:div class="term">Authors</xhtml:div>
                                <xhtml:div class="definition">Luhmann, Janet G.</xhtml:div>
                                <xhtml:div class="term">PublicationDate</xhtml:div>
                                <xhtml:div class="definition">2025-11-14 16:03:05Z</xhtml:div>
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                                <xhtml:div class="definition">University of California, Berkeley</xhtml:div>
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                                        <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/Janet.G.Luhmann.html">spase://SMWG/Person/Janet.G.Luhmann</xhtml:a>
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                                        <xhtml:tr>
                                            <xhtml:td>2.</xhtml:td>
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                                            <xhtml:td>
                                                <xhtml:a target="_blank" href="https://spase-metadata.org/SMWG/Person/Peter.Schroeder.html">spase://SMWG/Person/Peter.Schroeder</xhtml:a>
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                                    <xhtml:a target="_blank" href="http://stereo.ssl.berkeley.edu/">http://stereo.ssl.berkeley.edu/</xhtml:a>
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                                    <xhtml:a target="_blank" href="http://stereo.ssl.berkeley.edu/data.html">http://stereo.ssl.berkeley.edu/data.html</xhtml:a>
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                                <xhtml:div class="term">Description</xhtml:div>
                                <xhtml:div class="definition">Path to Level 1 CDF's, to browse plots, to selected 
ASCII sites, and to various software packages</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Format</xhtml:div>
                            <xhtml:div class="definition">CDF</xhtml:div>
                            <xhtml:div class="term">Acknowledgement</xhtml:div>
                            <xhtml:div class="definition">Principal Investigator Janet Luhmann, the key person(s)
for the instrument(s) whose data you are using (cf. web site), and Peter
Schroeder, UCB/IMPACT webmaster</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/STEREO-B/IMPACT.html">spase://SMWG/Instrument/STEREO-B/IMPACT</xhtml:a>
                        </xhtml:div>
                        <xhtml:div class="term">MeasurementType</xhtml:div>
                        <xhtml:div class="definition">ThermalPlasma</xhtml:div>
                        <xhtml:div class="term">MeasurementType</xhtml:div>
                        <xhtml:div class="definition">EnergeticParticles</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">2006-10-28 00:00:00</xhtml:div>
                                <xhtml:div class="term">RelativeStopDate</xhtml:div>
                                <xhtml:div class="definition">-P4M</xhtml:div>
                                <xhtml:div class="term">Note</xhtml:div>
                                <xhtml:div class="definition">Exact stop and end dates differ for various instruments'
data.  Lag time of latest data is typically some months.</xhtml:div>
                            </xhtml:div>
                            <xhtml:div class="term">Cadence</xhtml:div>
                            <xhtml:div class="definition">PT1M</xhtml:div>
                        </xhtml:div>
                        <xhtml:div class="term">ObservedRegion</xhtml:div>
                        <xhtml:div class="definition">Heliosphere.Remote1AU</xhtml:div>
                    </xhtml:div>
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                <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>
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                    <xhtml:a style="all:revert" href="https://ror.org/00ryjtt64">SPDF ROR ID</xhtml:a>
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                <xhtml:div class="footer-item">
                    <xhtml:span>Last Updated: 2026-02-16</xhtml:span>
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