ABSTRACT
The rapid development of satellite-based measurement and mapping technology is utilized by the Ministry of ATR / BPN by appliying Continuosly Operating Reference Stations-Jaringan Referensi Satelit Pertanahan (CORS- JRSP). The utilization of CORS / JRSP in cadastral measurements is constrained by the limited number of base stations because not all land offices have base stations, resulting in unreachable areas. with the development of technology, it is now possible that base stations can be placed directly at the measuring site. Thus, unreachable territories can be reached. The technology is called mobile base station. One of the existing mobile base station technology is South Type Galaxy GL The purpose of this study is to 1) tested significant differences between the coordinates of measurement results using by Mobile Base Station South Type Galaxy G I compared with CORS / JRSP coordinates and Static (Post Processing), 2) tested the accuracy of measurement results using by Mobile Base Station South Type Galaxy G1 compared with CORS / JRSP and Static (Post Processing).
The research method used is comparative experiment with quantitative approach. The samples are divided into 2 categories, in the range 5-10 Km and 10-15 Km from the base station of the Sleman Regency Land Office. Samples were measured three times using RTK NTRIP method with South Galaxy G1 compared with RTK NTRIP CORS / JRSP method and Static method as comparison data. The data were analyzed using t Test with significance level (a) 5%.
Based on the analysis, 1) t test with significance level (a) 5% at the coordinate difference of Mobile Base Station South type Galaxy C 1 compared to CORS / JRSP coordinates and Static (Post Processing) at range 5-10 Km and 10�15 Km from Base Station Sleman showing value t-stats smaller than t table thus concluded there aren't significant differences 2) The accuracy of measurement results in the range of 5-10 Km using Mobile Base Station South type Galaxy G1, CORS / JRSP, and Static (Post Processing) have horizontal accuracy (HRMS) average of 0.009 m, 0.012 m and 0.003 m. In the range of 10-15 Km using Mobile Base Station South type Galaxy G1, CORS / JRSP, and Static (Post Processing) have horizontal accuracy (HRMS) average of 0.008 m, 0.015 m and 0.002 m. Horizontal precision (HRMS) Mobile Base Station South type Galaxy GI in range 5-10 Km and 10-15 Km smaller than CORS / JRSP but larger than Static (Post Processing).


Keywords : CORS/JRSP, Mobile Base Station, SOUTH Galaxy 01