Checking opus solutions
how good is an opus solution? Just a quick observation??
A while back, I carefully laid out a baseline in 30 m stations with a GTS3B and HP3805A, after checking them on a 1km CBL. (Mirror offset separately confirmed.)
A couple years ago I put up a Z-12 on the zero point of my baseline: 90 min collection, whopper antenna, and opus rapid orbit solution.
Recently, I set a ZSurveyor on the 30 m station, for about 90 min. Then, weeks later I setup ZSurveyor on the 60 m station.
So 3 opus solutions for each station (0 m, 30 m, 60 m)
Simple inverse of ECEF coords returned:
29.998 m, 30.002 m, and 59.999 m.
The est error reported in the opus solutions is 0.006-007 m.
Didn??t expect that. (And that??s not a one-off, I??ve several short distance EDM v opus checks.) I love Z12.
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