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<tt>Mr Cong Huu,<br>
<br>
sorry but in the IGS we do not estimate orbits for the
Geostationary GNSS satellites or the SBAS. The SBAS only have
single frequency measurements and as the IGS always processes
using the Iono-free combination such satellites with only L1 data
are not processed. For the Geo satellites with 2 frequency data
(Beidou) as far as I know we also do not do precise orbits, on the
other hand the orbits you can find for the IGS products are in the
two ftp directories below. Keep in mind the current week is 1864
so check for at least two weeks back since delivery of precise SP3
orbits is delayed some days as we wait for station data;<br>
<br>
<a class="moz-txt-link-freetext" href="ftp://cddis.nasa.gov/gps/products/">ftp://cddis.nasa.gov/gps/products/</a><br>
<a class="moz-txt-link-freetext" href="ftp://cddis.nasa.gov/gps/products/mgex/">ftp://cddis.nasa.gov/gps/products/mgex/</a><br>
<br>
general description of the products:<br>
<br>
<a class="moz-txt-link-freetext" href="http://igs.org/products">http://igs.org/products</a><br>
<a class="moz-txt-link-freetext" href="http://igs.org/mgex/products">http://igs.org/mgex/products</a><br>
<br>
<br>
regards,<br>
<br>
Dr. Nacho Romero<br>
IGS Infrastructure Committee Chair<br>
<br>
</tt><br>
<div class="moz-cite-prefix">On 29/09/2015 10:13, Đỗ Hữu wrote:<br>
</div>
<blockquote
cite="mid:CACSR9dXk3zmJcNywg4W_cqgYo=z=_PHJPRU+DvbGwiQXMfC59w@mail.gmail.com"
type="cite">
<div dir="ltr">
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span
style="font-size:14pt;font-family:'Times New Roman',serif">I'm
from Vietnam.</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span
style="font-size:14pt;font-family:'Times New Roman',serif"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span
style="font-size:14pt;font-family:'Times New
Roman',serif;color:rgb(43,46,47)">I'm researching for the
quality of the geostationary
satellites measurements (C1) - SBAS. I need data file for
the accurate
coordinates of geostationary satellites (the same as SP3
format). Can you help
me this problem?</span><span
style="font-size:14pt;font-family:'Times New Roman',serif"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span
style="font-size:14pt;font-family:'Times New Roman',serif"> </span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span
style="font-size:14pt;font-family:'Times New
Roman',serif;color:rgb(43,46,47)">Thank you very much!</span><span
style="font-size:14pt;font-family:'Times New Roman',serif"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span
style="font-size:14pt;font-family:'Times New
Roman',serif;color:rgb(43,46,47)"><br>
</span></p>
<div>
<div class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">-----------****------------<br>
Name: Đỗ Công Hữu<br>
Mail: <a moz-do-not-send="true"
href="mailto:dchuu@hcmunre.edu.vn" target="_blank">dchuu@hcmunre.edu.vn</a><br>
Web: <a moz-do-not-send="true"
href="http://conghuu84.googlepages.com"
target="_blank">http://conghuu84.googlepages.com</a><br>
Phone: 0983 363 984</div>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Best regards,
Nacho
_______________________________________________________________
Ignacio (Nacho) Romero
Aerospace Engineer, PhD
SAC @ ESA/ESOC/HSO-GN
IGS Infrastructure Committee
<a class="moz-txt-link-abbreviated" href="http://www.canaryadvancedsolutions.com">www.canaryadvancedsolutions.com</a>
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