Date: Sat, 25 May 2002 18:19:11 -0700 (PDT) Message-Id: <200205260119.g4Q1JBok012380@eis-msg-012.jpl.nasa.gov> From: Angelyn.W.Moore@jpl.nasa.gov (Angelyn W Moore) To: igsmail@igscb.jpl.nasa.gov Subject: [IGSMAIL-3898]: New site data analysis plots Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 25 May 18:19:12 PDT 2002 Message Number 3898 ****************************************************************************** Author: Angelyn Moore Dear Colleagues, Next time you visit the IGS Tracking Network site at http://igscb.jpl.nasa.gov/network/netindex.html, you will find the clickable map and station list will lead you to individual site pages with some new information. As before there are links to that site's logs, related IGSMail messages, the IGSnet performance graphs, and any photos on file. Below these you will find 4 plots generated from the preceding 45 days of RINEX data. They are of the number of observations, cycle slips per observation (times 1000), and L1 and L2 multipath figures. These are items that one finds in teqc summary files. (Follow the link to further documentation if you wish to know more). These may be useful in determining whether the site is behaving stably or whether a change has taken place. Finally there are 4 plots of the 45-day averages of these quantities with the standard deviations as error bars, plotted along with the same for all IGS sites. This gives the viewer an idea how that particular site compares to the rest of the IGS network. As noted in the documentation, absolute values of the multipath figures are not known to be well correlated with behavior; the size of the standard deviation, however, gives an idea whether the site is more or less stable in comparison to other IGS sites. Further improvements are planned, but I hope you find the progress this far useful. As always please feel free to direct feedback to igscb@igscb.jpl.nasa.gov. Best regards, Angie ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Angelyn W. Moore, Ph.D. Deputy Director, IGS Central Bureau JPL/Caltech Angelyn.W.Moore@jpl.nasa.gov 4800 Oak Grove Dr. MS 238-540 voice: +1 818 354 5434 Pasadena CA 91109 USA http://igscb.jpl.nasa.gov fax: +1 818 393 6686