[IGSMAIL-3898]: New site data analysis plots

[Angelyn W Moore]

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IGS Electronic Mail      25 May 18:19:12 PDT 2002      Message Number 3898
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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 at igscb.jpl.nasa.gov.

Best regards,
Angie
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Angelyn W. Moore, Ph.D.            Deputy Director, IGS Central
Bureau 
 JPL/Caltech                              
Angelyn.W.Moore at 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