www.iejrd.com 1 International Engineering Journal For Research & Development Vol.5 Issue 5 DETERMINATION OF GEODETIC NETWORK COORDINATES FOR AREA OF MINING FACILITIES WITH GNSS TECHNOLOGY MEASUREMENTS 1 Niyazov V. R. --------------------------------------------------------------------------------------------------------------------------------------- ABSTRACT Insufficient availability of geodetic networks with known coordinates around mining facilities has a significant impact on mining facilities, conducting geodetic measurements and geodetic surveys, improving the quality of work and testing measuring instruments. With this in mind, the information on the determination of geodetic network in the Zarmitan and Muruntau mining is provided by the Leica GS10 GNSS satellite receivers of navigation systems. The influence of the external environment on the accuracy of the planned and height coordinates obtained from the observations and the duration of the navigational measurements have taken into account and the analysis was carried out. Planning and height precision indicators (HDOP, VDOP, PDOP, TDOP) are detailed. The graphs of coordinates change depending on several cycles of GNSS measurements are also given. It is recommended that you perform repeated GNSS measurements at different points of the year, with long intervals at established checkpoints. Keywords: DOP, GNSS, coordinates accuracy, geodetic network. INTRODUCTION In order to carry out this research, we have a 2-band Leica GS10 GNSS 2-frequency GS-10 satellite receiver designed for the use of high-precision geodetic measurements at the Samarkand Aero Geodesy Corporation under the State Committee of Land Resources, Geodesy, Cartography and Cadastre. Mobile navigators and computer technologies and software (Leica Geo Office, Credo GNSS). GNSS technology enables you to quickly and efficiently identify geodetic reference point’s coordinates and set up, update, calculate and equalize geodetic networks. However, there are no guidelines, instructions or programs for the use of these systems for scientific and methodological and educational purposes. Only in 1998, the State Committee for Land Resources, Geodesy, Cartography and State Cadastre of the Republic of Uzbekistan developed guidance on the use of satellite receivers in the creation and reconstruction of geodetic networks, and in 2014 at the Tashkent Institute of Irrigation and Agricultural Mechanization Engineers. Conducted the first training sessions on using GNSS for teachers. 1 Samarkand State Architectural and Civil Engineering Institute, Lolazor str., 70, 703047, Samarkand , Uzbekistan, e-mail: vohid85-85@mail.ru E-ISSN NO:-2349-0721 Impact factor : 6.549