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<p class="MsoNormal"><span style="font-size:11.0pt">Author: Dave Stowers<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Dear colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">As has been noticed by several IGS processing centers, analysis of the CHAN data has indicated there was a vertical displacement of approximately 90mm from the nominal estimated station position … some activity
or event over the period of d323-326 in 2020, which included a data outage and resulted in other quality metric shifts in data that has followed.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Until we have an explanation from the site for this change to enter into the IGS site log and RINEX metadata, we will discontinue forwarding and publication of the data at the end of today (Jan 6).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If a site operator or known associate or collaborator can facilitate a reply, preferably to cb@igs.org, it would be much appreciated so that properly documented data flow may be restored as soon as possible.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">-dave</span></p>
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