iGage X90-OPUS, Руководство пользователя

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OPUS-RS (Rapid Static)
Standard OPUS-Static sessions require 2-hour observations.
OPUS-RS sessions can be as short as 15-minutes.
However, OPUS-RS solutions are not available universally. In
general, OPUS-RS requires:
3 (or more) CORS within 250 km of your site
your site must be within 50 km of the polygon formed
by the CORS sites
If you are working in Southwest Nevada, along the highline
of Montana or in North or South Dakota, OPUS-RS probably
will not work and you will have to collect more than 2 hours
of data for submission to OPUS-STATIC!
Prior to collecting data for OPUS-RS check the latest status
map to insure that OPUS-RS will work. The online OPUS-RS
resource
http://geodesy.noaa.gov/OPUSI/Plots/Gmap/OPUSRS_sigmap.shtml
is updated routinely and reflects the probability that an
occupation at a given location will be successful and the
expected accuracy for a 15-minute and 1-hour occupation.