<div dir="ltr"><div dir="ltr"><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:small">Javier,</div><div style="font-size:small"><br></div><div style="font-size:small">I received a response from Swift Navigation Support:</div><div style="font-size:small"><br></div><div style="font-size:small">"Currently, Skylark Nx uses ITRF2020 epoch of the base station survey. Those were done quite recently so it's near the current epoch (within a year). We're planning to align all services to report the current epoch in the future Skylark releases."<br></div></div></div></div></div></div><br><div>Jack</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Aug 23, 2024 at 5:36 AM Javier Jimenez Shaw via PROJ <<a href="mailto:proj@lists.osgeo.org">proj@lists.osgeo.org</a>> wrote:</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>I am a bit confused with the epoch of coordinates. For instance, if I connect to this NTRIP service <br></div><div><a href="https://support.swiftnav.com/support/solutions/articles/44002386941-configuring-your-receiver" target="_blank">https://support.swiftnav.com/support/solutions/articles/44002386941-configuring-your-receiver</a></div><div>it says explicitly that "Skylark Nx RTK uses ITRF2020 reference frame."</div><div>Does it mean that the coordinates that I measure today do have an epoch of 2024.x (today's epoch), or the epoch of those measurements is 2015.0 (the epoch of ITRF2020 <a href="https://epsg.org/datum_1322/International-Terrestrial-Reference-Frame-2020.html" target="_blank">https://epsg.org/datum_1322/International-Terrestrial-Reference-Frame-2020.html</a>)</div></div>
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