27. Why can't I find the site I want in the choice list for UFCORS?

If the four-character identifier for a particular site does not appear in the list, then either the National Geodetic Survey (NGS) does not distribute GPS data for that site or NGS does not have GPS data for the requested time period for that site. Using the starting date, starting time, and duration that you specify, the UFCORS software looks at the records for each site to determine whether or not GPS data are available for the corresponding time period. If GPS data are available, then the site's name is added to the list.

The CORS Newsletter provides a somewhat comprehensive list of sites for which NGS distributes GPS data. The current CORS Newsletter may be accessed via the CORS web site: http://www.ngs.noaa.gov/cors/.html/news.html