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<pre><span style="font-size: 10pt;">Twenty years ago our GPS Time Series web page was launched at JPL.</span><br><span style="font-size: 10pt;">Current results are based on free-network point positions with ambiguity resolution transformed into IGS08.</span></pre>
<pre><span style="font-size: 10pt;">A large number of people, institutions, and nations have contributed to improvements over the years including:</span><br><span style="font-size: 10pt;">Sharing of GPS data from around the world</span><br><span style="font-size: 10pt;">Reprocessing orbits and clocks with consistent state of the art models</span><br><span style="font-size: 10pt;">Resolving of ambiguities for individual point positions</span><br><span style="font-size: 10pt;">Automating outlier removal, break detection, and weekly estimates for all parameters</span><br></pre>
<pre><span style="font-size: 10pt;">The original IGS Mail announcement is included below.</span><br><font size="4"><br></font><span style="font-size: 10pt;">Mike H.</span></pre>
<pre>******************************************************************************
IGS Electronic Mail Tue Nov 29 17:02:11 PST 1994 Message Number 0790
******************************************************************************
Author: Michael B. Heflin
Subject: Mosaic Time Series at JPL
Global GPS time series derived at the Jet Propulsion Laboratory are now
available via Mosaic. The URL is:
<a href="http://sideshow.jpl.nasa.gov/mbh/series.html">http://sideshow.jpl.nasa.gov/mbh/series.html</a>
Simply click on a site to see latitude, longitude, and height as a function of
time. Take a look and let me know if you have any comments.</pre>
<pre><span style="font-size: 10pt;">The current URL is:</span><br><span style="font-size: 10pt;">http://sideshow.jpl.nasa.gov/post/series.html</span></pre>
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