Dear Khun Anuchit
According to discussion with survey team today for the adjustment of GPS coordinate, we suggest as following
1) Use Base01 and GPS26 for reference baseline adjustment (see photo below)
2) The correction value for all GPS coordinate are following ; dN = 0.346 m., dE = -1.018 m., dZ = -1.540 m.
3) To hurry submit the survey report for approval, including the GPS benchmarking coordinate in UTM WGS84 system for all location. Please noted that all text in survey report should be in English language.
4) Please parallel issue a new survey report to Designer as soon as possible.
5) Others recommendation please see mail mentioned above.