<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><meta http-equiv="content-type" content="text/html; charset=utf-8"><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div>Dear Colleagues,</div><div><br></div><div>The IGS PPP-AR Pilot Project has established self-explained webpages showing the results of satellite phase clock/bias combination over AC’s individual contributions. The links are</div><div>(1)<span class="Apple-tab-span" style="white-space:pre"> </span>Rapid phase clock/bias product combination: https://igs.org/wg/ppp-ar/#rapid</div><div>(2)<span class="Apple-tab-span" style="white-space:pre"> </span>Final phase clock/bias product combination: https://igs.org/wg/ppp-ar/#final</div><div><br></div><div>Both webpages are updated on a weekly basis, with illustrations provided by Wuhan University. Thank all contributing ACs for their valuable work. Users can also access this webpage to be aware of the status of AC-specific phase bias products and facilitate their PPP work based on IGS products.</div><div><br></div><div>In addition, for demonstration purposes, since 2024, the combined phase bias products (WMC0DEMRAP and WMC0DEMFIN) have been uploaded routinely to the Wuhan FTP along with the combined orbits and clocks (ftp://igs.gnsswhu.cn/pub/whu/phasebias). The latency is from one to a few weeks. At the moment, the WMC0DEMRAP orbits, clocks and phase biases have sampling rates of 5 minutes, 5 minutes and 1 day, while the WMC0DEMFIN have the sampling rates of 5 minutes, 30 s and 1 day, respectively. A summary file (CLS.SUM) for each day’s combination statistics is also uploaded.</div><div><br></div><div>Please tell us if you find any problems with these combined products.</div><div><br></div><div>Best,</div><div>
<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div>Jianghui Geng on behalf of the PRIDE Group including Qiang Wen, Zhe Yan and Qiyuan Zhang.</div><div>Chair of the PPP-AR Pilot Project</div><div><br>Professor in GNSS Geodesy<br>GNSS Research Center, Wuhan University<br>Email: jgeng@whu.edu.cn<br>Homepage: http://pride.whu.edu.cn</div><div><br></div><div>Earn the right to be wrong</div></div>
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