Bambang Rudianto, Ir., MT. ILHAM PRAMANDA/23-2011-042 Penulis

Two dimensional coordinate transformation could be done by using any methods that follow shape and wide-scale of data distribution that will be transformed so anyTwo dimensional coordinate transformation could be done by using any methods that follow shape and wide-scale of data distribution that will be transformed so any characterization methods can be used properly such as Helmert transformation which is conformal method and Affine transformation that maintain the size (equidistance). Coordinate transformation process is always involving a number of common points which are chosen to cover the area and other points so that all tally in this study are using common points start from 2 until 5 points. Coordinate of the common points known in geodetic system and UTM projection system as input data. Each parameter is tested by doing statistical and conformability test to figure out the transposition that happened after transformation. The best method to be used in PGE area Kamojang is Helmert transformation with 4 common points in geocentric system as input, based on all the sum up of tally is inferring that the transposition is not significant. characterization methods can be used properly such as Helmert transformation which is conformal method and Affine transformation that maintain the size (equidistance). Coordinate transformation process is always involving a number of common points which are chosen to cover the area and other points so that all tally in this study are using common points start from 2 until 5 points. Coordinate of the common points known in geodetic system and UTM projection system as input data. Each parameter is tested by doing statistical and conformability test to figure out the transposition that happened after transformation. The best method to be used in PGE area Kamojang is Helmert transformation with 4 common points in geocentric system as input, based on all the sum up of tally is inferring that the transposition is not significant.