Investigation of effect of gnss observati̇on ti̇me to baseli̇ne soluti̇on

Positional accuracy of points and baseline vectors in GNSS/GNSS networks depends on the base length and observation time, on the assumption that components of the enviromental and instrumental errors modelled, in other words simultaneous observation time in points of limiting the base. A choice for the observation time is quite substantial in terms of the sensitivity of the geodetic network. İn this study, 360 minutes observations carried out in different three days by using eight points that placed in Aksaray University Campus, 1 CORS-TR (Continuously Operating Reference Stations-Turkey) and 3 TNFGN (Turkey National Fundamental GNSS Network) points for investigate effects of observation time on base solution results and points coordinates in a local network by using scientific and commercial software. 6 hour observations that performed in different days separated periods with 20, 40, 60, 120, 240, and 360 minutes. This measurements were evaluated in the latest version of Leica Geo Office 8.3 (LGO) as a commercial software and GAMIT/GLOBK as a free scientific software. As a consequence of evaluations, effects of observation time on base solution results obtained and results compared.