> My antenna was calibtated by NGS and I know that horizontal electrical phase center location is vey close to the center of the mounting thread of my receiver.The horiz offset is -1.2 mm in NS direction ans 0.0 in EW direction. These numbers are average values.
Yes, that sounds as if the L1 phase center of the antenna is sufficiently close to the center of the mounting stud of the receiver that for most practical purposes not much is lost by modelling the antenna on the total station as essentially stationary over the ground mark that the total station is centered on.
I wonder whether you have tested the eccentricity of the phase centers by setting up a pair on a very short (maybe 1m or less) baseline and logging data for baseline solutions as you progressively rotate one of the receivers through, say, 45-degree increments. The baseline solutions should show any phase center eccentricity effects if they are present.
No I did not do such test but I wll, thank you for the idea. I should probably do similar test by rotating the receiver during logging data. I did not notice any effect of rotating receiver during the survey on traverces, but it woulbe interresting what will I get on short baseline like that.
... i just reminded to mysel that i did such test few years ago on 0.9m beseline but i cant recall differences tha i had, they must have been insignificant othervise I woul remember. I think i was rotating 90 deg. I did not have calibration back than and i wanted to chech the phase center. How come i forgot about that? :'( but i did not chech rotation while logging.
Very cool photos. Thanks for sharing, man.