MONALDI PAHERA / 23.2005.005 / GD Penulis Bambang Rudianto, Ir., M.T.

Any several geodetic datum utilizations in implementation of mapping in Indonesia result in spatial data integration problem. By the reason, Bakosurtanal was implements Datum Geodetik Nasional 1995 (DGN-95) as single datum for mapping in Indonesia. The transformation parameter availability of preceding datum to DGN-95 needed in spatial data integration process. This paper stems from research of transformation model use of Molodensky-Badekas in measure of transformation parameter of Datum Bessel 1841 to DGN-95 in the North Sumatra. By result, it is shows that datum parameter values are ΔX = -376,900 m, ΔY = 681,024 m, and ΔZ = -50,102 m. There are any differences about dΔX = 0,100 m, dΔY = 0,024 m, and dΔZ = -0,102 m on publicized parameter scores of U.S. NIMA as the comparison data.. Keywords: Datum geodetic, Datum Transformtion, Model transformasi Molodensky-Badekas, Datum parameter values