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<p class="MsoNormal">Dear Colleagues,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Following the provision of the multi-GNSS demonstration combined products, as announced in
<a href="https://lists.igs.org/pipermail/igsmail/2026/008678.html">[IGSMAIL-8682]</a>, this is a reminder that
<b>the IGS combined GLONASS experimental products</b> <b>(Ultra-rapid: igv* and Final: igl*) will no longer be provided</b> starting from the products of
<b>GPS week 2418 (2026, Day of Year 130 / 10 May 2026)</b>.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The following products will no longer be provided after this date:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> 1. IGS combined GLONASS experimental Final orbits: igl<wwww><d>.sp3.Z<o:p></o:p></p>
<p class="MsoNormal"> 2. GLONASS Final orbit combination summary files: igl<wwww>7.sum.Z<o:p></o:p></p>
<p class="MsoNormal"> 3. IGS combined GLONASS experimental ultra-rapid orbits: igv<wwww><d>_<hr>.sp3.Z<o:p></o:p></p>
<p class="MsoNormal"> 4. GLONASS ultra-rapid orbit combination summary files: igv<wwww><d>_<hr>.sum.Z<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Users who rely on GLONASS products are advised to transition their workflows to the multi-GNSS combined products (IGS0DEMULT* and IGS0DEMFIN*).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This change <b>does not affect</b> the provision of the combined operational (GPS-only) products (IGS0OPSFIN*).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please contact <a href="mailto:acc@igs.org">acc@igs.org</a> if you have any concerns or require support with the transition.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best Regards,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;mso-fareast-language:EN-AU">Salim Masoumi Ph.D.</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;mso-fareast-language:EN-AU"> </span><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#006983;mso-fareast-language:EN-AU">|</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;mso-fareast-language:EN-AU">
GNSS Team Leader <br>
GNSS Analysis Section | Positioning Australia Branch</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;mso-fareast-language:EN-AU"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;mso-fareast-language:EN-AU">Space Division<o:p></o:p></span></p>
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