5 NEW STATIONS HAVE BEEN ADDED TO THE NATIONAL CORS NETWORK

December day, December 16,2009

5 NEW STATIONS HAVE BEEN ADDED TO THE NATIONAL CORS NETWORK.

Coordinate information, logfiles, and RINEX2 data are now available for the
following NATIONAL CORS sites.

Site City State Country Agency Type**
Id Name Abbr. Abbr. Code*
AZSV Star Valley AZ US ASLDSC New
MOBR Branson MO US MODT New
MOCA Carthage MO US MODT New
MOFE Festus MO US MODT New
MOMX Mexico MO US MODT New
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*Agency Code-See bottom of newsletter for list of participating
agencies; **Type-New is new CORS, Coop is a Coop CORS site
transitioning to National CORS Network
, 2009

GRAPHICAL DISPLAY OF OPUS-RS ACCURACIES (UPDATED WEEKLY)

To know the approximate accuracy of OPUS-RS solutions as a function of
geographic location, click the following two graphs:

a) 15 minutes session accuracy

Horizontal accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-h.15-min.png

Ellipsoid height accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-u.15-min.png

b) 1 hour session accuracy

Horizontal accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-h.1-hour.png

Ellipsoid height accuracy:
http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-u.1-hour.png

An interactive web-based beta version is available at:

        http://www.ngs.noaa.gov/OPUSI/Plots/Gmap/OPUSRS_sigmap.shtml

A brief description of how these graphs were generated can be read at:

http://www.ngs.noaa.gov/OPUSI/Plots/OPUS-RSWebPlots.pdf