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<p class="MsoNormal"><span style="color:black">*<b>ONLY THE<span class="apple-converted-space"> </span><u>FILENAME</u><span class="apple-converted-space"> </span>IS CHANGING AT THIS TIME. Updating the contents of the file to Tropo Sinex v2 will happen in the
near future and there will be a separate email notification</b>*</span><span style="color:black"><o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">Hi IGS community-<o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">After<span class="apple-converted-space"> </span><u>Feb 16</u>, per “[IGSMAIL-8309] Updated Guidelines on Long Product Filenames in the IGS (please read carefully)”, the IGS Final Troposphere files will be changing names to be consistent
with the recent IGS long product filenaming changes. We will be using the filenaming standard in the SINEX_TRO_v2 specification (<a href="https://files.igs.org/pub/data/format/sinex_tro_v2.00.pdf">https://files.igs.org/pub/data/format/sinex_tro_v2.00.pdf</a>).
The files submitted starting on Feb 17 will have the new long name format described below.<o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">The format will be:<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<b><span style="color:black">IGS0OPSFIN_<span class="apple-converted-space"> </span><i>YYYYDOYHHMM</i>_01D_05M_<span class="apple-converted-space"> </span><i>SITENAME</i>_TRO.TRO</span></b><span style="color:black"><o:p></o:p></span></p>
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<span style="color:black">(*date and 9 char sitename fields depend on file contents as before)<o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">For example:<o:p></o:p></span></p>
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<span style="color:black">Previous name:<o:p></o:p></span></p>
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<b><span style="color:black">usn70470.23zpd</span></b><span style="color:black"><o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">New name:<o:p></o:p></span></p>
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<b><span style="color:black">IGS0OPSFIN_20230470000_01D_05M_USN700USA_TRO.TRO</span></b><span style="color:black"><o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">Details on the filename format can be found in Section 4.1 of the the SINEX_TRO_v2 specification (https://files.igs.org/pub/data/format/sinex_tro_v2.00.pdf).<o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
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<span style="color:black">Thanks!<br>
-Sharyl<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">IGS Troposphere Working Group Chair<o:p></o:p></span></p>
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<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">Sharyl Byram, PhD<br>
Chief, EOPCP and GPS Analysis Division<br>
Earth Orientation Department<br>
United States Naval Observatory<br>
3450 Massachusetts Avenue NW<br>
Washington, DC 20392<br>
tel: (202) 762-0185<br>
sharyl.m.byram.civ@us.navy.mil </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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