<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">

<p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">USGS Geomag Data Users: </span></p><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">This is a notification of an impending modification to the Sitka Geomagnetic Observatory (SIT) data.  </span></p><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Geomag Observatory: <b>SIT</b></span></p><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Start Date/Time: </span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap"><span class="gmail-aBn" tabindex="0" style="border-bottom:1px dashed rgb(204,204,204)"><span class="gmail-aQJ" style="top: 2px; z-index: -1;">07/11/2018 – 16:00:00 UTC</span></span></span></p><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">This modification is: </span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">planned</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">  </span></p><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NOTES: The fluxgate sensor at the Sitka observatory, near Sitka, AK, will be replaced. This requires a break in real time data continuity, and may result in a brief interval of corrupted raw data in the archive (this will be flagged and removed in subsequent definitive processing, as per usual).</span></p><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">More relevant to real-time data users is that certain derived products cannot be reliably generated until the new instrument has stabilized magnetically, and several absolute calibration measurements have been performed over the course of a few days to weeks following this operation.</span></p><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">The table below details the effects and timelines of this modification on various geomagnetic data and geomagnetic data products.  </span></p><div dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-left:0pt"><table style="border:none;border-collapse:collapse"><colgroup><col width="96"><col width="96"><col width="144"><col width="144"><col width="149"></colgroup><tbody><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Product</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Effect</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Estimated Start Date/Time:</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Estimated End Date/Time:</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;font-weight:700;vertical-align:baseline;white-space:pre-wrap">Notes:</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Raw</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Offsets/Drift/</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Disturbance</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">7/13/2018</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">01:00 UTC</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">allow ample time for hardware swap-out</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Quasi Definitive</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Possible Outage</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">7/16/2018</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">01:00 UTC</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">reliable calibration required</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Definitive</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Possible Outage</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/16/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">01:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">reliable calibration required</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Adjusted</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Outage</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/20/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">01:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">multiple stable calibrations required</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">XYZ</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Offsets</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">7/20/2018</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">00:00 UTC</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">multiple stable calibrations required</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">SQ</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Offsets/</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Drift</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">8/16/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">00:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">~30 Day filter within algorithm</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">SV</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Offsets/</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Drift</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">8/16/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">00:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">~30 Day filter within algorithm</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">DIST</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Offsets/</span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Drift</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">7/11/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">16:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">8/16/2018</span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap"><br class="gmail-m_-5433592155427557672gmail-kix-line-break"></span><span style="background-color:transparent;font-size:11pt;font-family:Calibri;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap">00:00 UTC</span><br></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">~30 Day filter within algorithm</span></p></td></tr><tr style="height:0pt"><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">DST</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">NA</span></p></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><br></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><br></td><td style="font-family:arial,sans-serif;margin:0px;border-width:1.5pt;border-style:solid;border-color:rgb(0,0,0);vertical-align:top;padding:0pt 5.4pt"><p dir="ltr" style="line-height:1.2;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Not a DST Station</span></p></td></tr></tbody></table></div><br style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><p dir="ltr" style="font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;line-height:1.295;margin-top:0pt;margin-bottom:8pt"><span style="font-size:11pt;font-family:Calibri;color:rgb(0,0,0);background-color:transparent;vertical-align:baseline;white-space:pre-wrap">Additional notification will be sent once real-time data products have been fully restored to normal operation.  Please direct any questions or concerns to <a href="mailto:geomag-data@geohazards.usgs.gov" target="_blank" style="color:rgb(17,85,204)">geomag-data@geohazards.usgs.<wbr>gov</a>. </span></p>

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