<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-AU" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">Dear Colleagues,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There was a problem in the ultra-rapid combination of the orbits for GPS week 2252, dow 5, hour 0 (IGS0OPSULT_20230680000*) that went unnoticed until today, therefore causing a delay of four days in providing the ultra-rapid products for
this occasion. The system did not issue an automatic error notification to the analysts for this occasion, which was the main reason the error was unnoticed. An issue with one analysis centre orbit solution, again not captured by the automatic procedures at
the time, resulted in an error in the combination.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I sincerely apologise for any inconvenience this may have caused for you. We will continue working on improving the automated procedures to avoid such issues as much as possible in future.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kind Regards,<o:p></o:p></p>
<p class="MsoNormal">Salim Masoumi<o:p></o:p></p>
<p class="MsoNormal">IGS ACC<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</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#333333;mso-fareast-language:EN-AU"> <b>PhD</b></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>
<p class="MsoNormal"><span style="font-size:4.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#006983;mso-fareast-language:EN-AU">t</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333;mso-fareast-language:EN-AU"> +61 2 6249 9688 </span><span style="color:#31849B;mso-fareast-language:EN-AU"><a href="https://www.ga.gov.au/"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#31849B;text-decoration:none">ga.gov.au</span></a>
</span><span style="color:#31849B;mso-fareast-language:EN-AU"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#31849B;mso-fareast-language:EN-AU"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><a href="https://www.ga.gov.au/"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#31849B;mso-fareast-language:EN-AU;text-decoration:none"><img border="0" width="536" height="90" style="width:5.5833in;height:.9416in" id="Picture_x0020_9" src="cid:image001.png@01D956A1.1F53F6A0"></span></b></a><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#31849B;mso-fareast-language:EN-AU"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:6.0pt;color:#1F497D;mso-fareast-language:EN-AU"> </span><span style="font-size:4.0pt;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#31849B;mso-fareast-language:EN-AU"><a href="https://twitter.com/GeoscienceAus"><span style="color:#31849B;text-decoration:none">Twitter</span></a>
<b> | </b> <a href="https://www.facebook.com/GeoscienceAustralia"><span style="color:#31849B;text-decoration:none">Facebook</span></a>
<b> | </b> <a href="https://www.youtube.com/user/GeoscienceAustralia"><span style="color:#31849B;text-decoration:none">YouTube</span></a><b> |
</b> <a href="https://www.linkedin.com/company/geoscience-australia"><span style="color:#31849B;text-decoration:none">LinkedIn</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#107893;mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#44546A;mso-fareast-language:EN-AU">Geoscience Australia acknowledges the traditional owners and custodians of Country throughout
<br>
Australia and acknowledges their continuing connection to land, waters and community. We pay our<br>
respects to the people, the cultures and the elders past and present.</span><span style="color:#44546A;mso-fareast-language:EN-AU"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<br>Geoscience Australia Disclaimer: This e-mail (and files transmitted with it) is intended only for the person or entity to which it is addressed. If you are not the intended recipient, then you have received this e-mail by mistake and any use, dissemination, forwarding, printing or copying of this e-mail and its file attachments is prohibited. The security of emails transmitted cannot be guaranteed; by forwarding or replying to this email, you acknowledge and accept these risks.</body>
</html>