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Identification and locating the burst orderly manner take... » S1_burstloc.html

Charles Werner, 09/13/2021 10:15 AM

    
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        <title>ISP Reference Manual: S1_burstloc</title>

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        <h1>Gamma ISP: Reference Manual</h1>

        <hr>

        <h2>S1_burstloc</h2>

        <p><i>ANSI-C program:</i> <a href="../src/S1_burstloc.c"><i>S1_burstloc.c</i></a></p>

        <p><strong>NAME</strong><br>

          <em>S1_burstloc</em> - extract burst location and time information given in the Sentinel-1 annotation</p>

        <p><strong>SYNOPSIS</strong><br>

          <code><b>S1_burstloc &lt;annotation_XML&gt;</b></code></p>

        <table cellpadding="7" border="1">

          <tbody>

            <tr>

              <td>&lt;annotation_XML&gt;</td>

              <td>(input) Sentinel-1 L1 XML annotation file</td>

            </tr>

          </tbody>

        </table>

        <p><strong>EXAMPLE</strong><br>

          <code>S1_burstloc s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml</code></p>

        <p><strong>DESCRIPTION</strong><br>

          <i>S1_burstloc</i> reads the burst location information from the Sentinel-1 annotation file of a given swath and

          polarization. The program then prints out a table of the start time of each burst and the geographic latitude and

          longitude of each corner. Each S1 SLC data product has a set of annotation XML files located in the annotation

          product directory. There are individual annotation files for each swath and polarization. For an image acquired

          over Montreal, Canada, these are the XML files contained in the annotation directory:</p>

        <p><code><span style="color: #011993;">s1a-iw2-slc-vv-20200128t224415-20200128t224440-031007-038fbf-005.xml<br>

              s1a-iw1-slc-vh-20200128t224414-20200128t224440-031007-038fbf-001.xml&nbsp; <br>

              s1a-iw3-slc-vh-20200128t224414-20200128t224439-031007-038fbf-003.xml<br>

              s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml <br>

              s1a-iw3-slc-vv-20200128t224414-20200128t224439-031007-038fbf-006.xml<br>

              s1a-iw2-slc-vh-20200128t224415-20200128t224440-031007-038fbf-002.xml</span><br>

          </code></p>

        <p>Note that the XML file name includes the swath (iw1, iw2, iw3) and the polarization (vv, vh). </p>

        <p>An example of the output of<code> S1_burstloc </code>for the first swath (iw1) and VV polarization (vv):</p>

        <p><span style="color: #011993;"><code>S1_burstloc

              s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml<br>

              *** Print Burst information found in the Sentinel-1 annotation file ***<br>

              *** Copyright 2018, Gamma Remote Sensing, v1.2 4-Sep-2018 awi/cm ***<br>

              S1 XML annotation: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 1&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81856.42758411 45.04650886&nbsp; 0.00000000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 44.97667280

              -74.28317919&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.15654784 -74.33336168&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.29936492

              -73.25512804&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.11940728 -73.20846578<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 2&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81859.19025211 45.21446346&nbsp; 0.16795460&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.14225699

              -74.32936761&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.32211753 -74.37972641&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.46501279

              -73.29822358&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.28506743 -73.25141484<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 3&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81861.94880811 45.38215805&nbsp; 0.16769459&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.30770460

              -74.37568368&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.48742738 -74.42618611&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.63040277

              -73.34139128&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.45059297 -73.29446655<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 4&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81864.70736511 45.54984270&nbsp; 0.16768465&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.47361598

              -74.41680976&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.65332473 -74.46747461&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.79623635

              -73.38008876&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.61643871 -73.33302942<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 5&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81867.46386611 45.71739240&nbsp; 0.16754971&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.63879096

              -74.46336964&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.81860815 -74.51425153&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.96160374

              -73.42351988&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.78169530 -73.37627663<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 6&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81870.22242211 45.88505707&nbsp; 0.16766467&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.80407555

              -74.51013172&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.98400105 -74.56123326&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.12708280

              -73.46712478&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.94706367 -73.41969540<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 7&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81872.98097911 46.05271188&nbsp; 0.16765481&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 45.96934656

              -74.55706341&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.14913397 -74.60831677&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.29230393

              -73.51080770&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.11242059 -73.46325530<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 8&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81875.73748011 46.22023185&nbsp; 0.16751997&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.13448068

              -74.60413160&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.31437620 -74.65560925&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.45763662

              -73.55466799&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.27764272 -73.50692547<br>

              Burst: s1a-iw1-slc-vv-20200128t224414-20200128t224440-031007-038fbf-004.xml&nbsp;&nbsp; 9&nbsp;&nbsp;&nbsp;

              135 IW1 VV 81878.49603611 46.38786684&nbsp; 0.16763499&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.29972410

              -74.65140856&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.47948137 -74.70304237&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.62283439

              -73.59864210&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 46.44297641 -73.55077283<br>

            </code></span></p>

        <p>The different fields of the each line include the XML filename, burst number, track number, swath, polarization,

          start time of the burst, the sum of the argument of periapsis (perigee) + true anomaly, the change in true anomaly

          relative to the previous burst, and 4 coordinate pairs in latitude and longitude of the burst corners.&nbsp; See

          the Wikipedia for an explanation of orbital elements: <a href="https://en.wikipedia.org/wiki/Orbital_elements">https://en.wikipedia.org/wiki/Orbital_elements</a>.

          <br>

        </p>

        <strong>SEE ALSO</strong><br>

        <a href="ScanSAR_burst_corners.html">ScanSAR_burst_corners</a>, <a href="S1_import_SLC_from_zipfiles.html">S1_import_SLC_from_zipfiles</a>

        <hr> <a href="urs_wegmuller.html">UW</a>, <a href="charles_werner.html">CW</a>, <a href="tazio_strozzi.html">TS</a>,

        <a href="copyright.html">Copyright</a> <a href="gamma.html">Gamma Remote Sensing AG</a>, last change 13-Sep-2021

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