<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Dear Colleagues,</div><div class=""><br class=""></div><div class="">This is a quick reminder that in order to provide the best data possible IGS station operators should provide the signal-to-noise values for all tracked signals: S1, S2, etc. in the RINEX files at the highest precision possible. This is IGS site guideline 2.2.8. Here is a link to the current IGS site guidelines.</div><div class=""><br class=""></div><div class=""><a href="https://kb.igs.org/hc/en-us/articles/202011433-Current-IGS-Site-Guidelines" class="">https://kb.igs.org/hc/en-us/articles/202011433-Current-IGS-Site-Guidelines</a></div><div class=""><br class=""></div><div class="">Here is a list of stations missing signal-to-noise in their RINEX2 files:</div><div class=""><br class=""></div><div class=""><div class="">ankr</div><div class="">bjnm</div><div class="">hksl</div><div class="">hkws</div><div class="">irkj</div><div class="">joze</div><div class="">kgni</div><div class="">ksmv</div><div class="">mag0</div><div class="">mdvj</div><div class="">mers</div><div class="">monp</div><div class="">not1</div><div class="">pin1</div><div class="">pove</div><div class="">roap</div><div class="">salu</div><div class="">savo</div><div class="">scip</div><div class="">suwn</div><div class="">trak</div><div class="">twtf</div><div class="">ufpr</div><div class="">yssk</div><div class=""><br class=""></div><div class="">Here is a list of stations missing signal-to-noise in their RINEX3 files:</div><div class=""><br class=""></div><div class="">ANKR00TUR</div><div class="">ARUC00ARM</div><div class="">CHPI00BRA</div><div class="">COCO00AUS</div><div class="">MERS00TUR</div><div class="">ROAP00ESP</div></div><div class=""><br class=""></div><div class="">Best Regards,</div><div class="">David Maggert and Nacho Romero</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>