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<p class="MsoNormal"><span lang="EN-US">Dear colleagues<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The absolute IGS antenna correction file (igs20_wwww.atx) has been updated.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The new release is called 'igs20_236.atx'. It contains the following changes:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1) According to the </span><a href="https://files.igs.org/pub/station/general/igs_satellite_metadata.snx?_gl=1*a69uf*_ga*NTU2NDgyMzczLjE3MzI0NzU1MTA.*_ga_Z5RH7R682C*MTc0MTA5ODU4MC4xNS4xLjE3NDEwOTk0OTMuNjAuMC4w"><span lang="EN-GB" style="color:#008299;background:white;text-decoration:none">IGS
satellite metadata file</span></a> <span lang="EN-GB">t</span><span lang="EN-US">wo new satellites QZSS J007 (J08) and GLONASS R807 (R27) have been added. For the GLONASS K2 satellite R807 the same preliminary PCO values as for R803 have been used.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">- QZSS-3G J08 (J007): Starting from 02. February 2025<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">- GLONASS-K2 R27 (R804): Starting from 02. March 2025<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2) According to the </span><a href="https://files.igs.org/pub/station/general/igs_satellite_metadata.snx?_gl=1*a69uf*_ga*NTU2NDgyMzczLjE3MzI0NzU1MTA.*_ga_Z5RH7R682C*MTc0MTA5ODU4MC4xNS4xLjE3NDEwOTk0OTMuNjAuMC4w"><span lang="EN-GB" style="color:#008299;background:white;text-decoration:none">IGS
satellite metadata file</span></a> <span lang="EN-GB">one satellite, R716 (R27), has been decommissioned:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">- GLONASS-M R27 (R716): Decommission day: 01. January 2020</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">3) Ten new antenna calibrations which have been performed by Geo++ GmbH:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> - Two antenna calibrations provided by Shanghai Huace Navigation Technology Ltd..:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CHCI76 NONE <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> CHCI83PRO NONE <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> - One antenna calibrations provided by Shanghai EFIX Geomatics Co., Ltd.:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> EFIF8 NONE <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoListParagraph" style="margin-left:-12.75pt;mso-list:l0 level1 lfo1">
<span lang="EN-US">Four antenna calibrations provided by JAVAD GNSS, INC.:<o:p></o:p></span></li></ul>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="FR-CH">JAVGRANT_3LS NONE
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CH"> JAVGRANT_3LS+GP JVSD <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CH"> JAVGRANT_G3T+GP JVSD <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CH"> JAVGRANT_G3T+ NONE <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR-CH"></span><span lang="EN-US">- </span><span lang="EN-US">Three antenna calibration provided by Toknav Information Technology Co., Ltd.:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span><span lang="IT-CH">TNVT20PRO NONE
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="IT-CH"> TNVT20 NONE <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="IT-CH"> TNVT5LITE NONE <o:p></o:p></span></p>
<p class="m6936121351531566283msoplaintext"><span lang="EN-US" style="mso-fareast-language:EN-US">The updated antenna correction model is available a<o:p></o:p></span></p>
<p class="m6936121351531566283msoplaintext"><a href="https://files.igs.org/pub/station/general/igs20_2360.atx.gz"><span lang="EN-US">https://files.igs.org/pub/station/general/igs20_2360.atx.gz</span></a>
<span lang="EN-US"><o:p></o:p></span></p>
<p class="m6936121351531566283msoplaintext"><span lang="EN-US">and</span><span lang="EN-GB"><o:p></o:p></span></p>
<pre><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"><a href="https://files.igs.org/pub/station/general/igs20.atx.gz%20%0d" target="_blank"><span lang="EN-GB">https://files.igs.org/pub/station/general/igs20.atx.gz </span></a></span><span lang="EN-GB"><o:p></o:p></span></pre>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Arturo<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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