G. Hi friend, today i want show u , how to convert coordinate by Global Mapper software to convert coordinate same like WGS84 to RSO and many m. 74039" Longitude: 25° 7’ 36. See Answer. This app is the first, and for now the only, app that can convert coordinates between 3800+ coordinate systems/datums. Hi, I have collected RAW data log and processed the . Table 2: Results of the Coordinate Conversion between WGS84 and GDM2000 . Area of use: Malaysia - West Malaysia; Singapore. In effect, the GPS-user is trying to convert the positional coordinates that the receiver outputs or the manufacture proprietary software gives from one particular frame into the other. I'm writing code and need to perform a single conversion (WGS to EPSG:3071) so using a library, open source or not, involves too much overhead (20+ MB for one library). This tag also refers to cartographic projections and coordinate system transformations. Timbalai 1948 / RSO Borneo (ft) WGS84 Bounds: 109. Information source: Sarawak Shell Berhad. Geodetic CRS: Timbalai 1948. 914398 metres per yard. Jeppesen has compiled and maintains a WGS84 Status Report based on. As Google Maps are using the Mercator projection on WGS84 datum, the mapplet will perform a datum transformation from WGS84 to the Timbalai datum using the Standard Molodensky 3-parameters transformation. WGS 84 is most commonly used to describe the. Military survey. Convert coordinates from Geographic (latitude, longitude) to “WGS 84” Universal Transverse Mercator (UTM) coordinate system. Table 2: Results of the Coordinate Conversion between WGS84 and GDM2000 . 36,. Hotine (Snyder, 1984) called the projection as "rectified skew orthomorphic". Conversion from WGS84 to UTM NAD83. 0 Brief Description: WGS 84 is an Earth-centered, Earth-fixed terrestrial reference. You. - Need script to convert RSO (MRSO) to WGS84 - Preferred language for the script is Groovy, but no hard restrictions on it Datum Values : Coordinate System Parameters CS_NAME: MAL-MRSO DESC_NM: Peninsula Malaysia, RSO System, Metres DT_NAME: KERTAU48 GROUP: ASIA MAP_SCL: 1 PARM1: 105. First of all, one should understand that the 3-D Cartesian frames to which the. 23644287499999 PARM2: . 24, -47. hpp into your project, #include "WGS84toCartesian. Engineering survey, topographic mapping. 8421. The value range is [0, 15]. The software can be used to convert a single coordinate, or to convert a. Approximation assuming WGS 84 is equivalent to GDA94; ignores low accuracy of the WGS 84 ensemble and inconsistent application of tectonic plate. Downloads. Pin your. Latitude and longitude forma t. The second method required us to convert the current coordinate system into Global (WGS84) first before converting into. WGS 72. In this article from March of this year it does not get into the details of the conversion. 72, 174041. On the other hand, ITRF08, ITRF2014 and WGS84 (G1762) are virtually identical if their epochs (moment in time) are the same. Reproject Map. For reversible alternative see CT code 9704. The valid values for the respective system can be found by moving the mouse over the input examples. Abstract. World Geodetic System 1984 Responsible Organization: National Geospatial-Intelligence Agency Abbreviated Frame Name: WGS 84 Associated TRS: WGS 84 Coverage of Frame: Global Type of Frame: 3-Dimensional Last Version: WGS 84 (G1674) Reference Epoch: 2005. Title: Slide 1 Author: khairani Created Date: 3/20/2014 9:42:02 AMTo convert coordinates, complete the following steps: On the ribbon, click the Map tab. And the result would appear (-11982. . 72 Malaysia - West Malaysia; Singapore. Decimal degrees. Last. my. This is a very old program for one-way coordinates transformation from WGS84 – MRT – RSO to Cassini-Soldner. Large and medium scale topographic mapping and engineering survey. I want to change it to WGS 84 (latitude/longitude). The grid zones UTM 31N to 37N differ from the standard zone for the Northern. . See Kertau (RSO) / RSO Malaya (ch) (CRS code 3168) for Imperial version. The Johor Grid you have taken might be highly accurate for local surveying, but not suitable for data of the whole peninsular. WGS84 . These multi-scale basemaps have been delivered as pre-rendered image tiles (JPG or PNG format) to optimize performance. E. 3. Formats: UTM, UTMRF/MGRS, CH1903, Gauss-Krueger, GK, NAC, W3W and WGS as decimal, decimal minutes or in degrees, minutes and seconds. World Geodetic System WGS84 standard is used on this latitude and longitude to UTM converter. If I have records from all over the world then which NAD 83 do I use in place of WGS84? For now, you may use HTDP to transform WGS84 to NAD 83 first and use the transformed NAD 83 coordinates in NCAT. Is there a good (compact) Java source for converting between. ini, which can be found in the folder drive:Program FilesGeoMediaProgramcssruntmcfg. Pastikan juga tuan sudah betul2 setkan coordinate system dataframe sebagai rso (utk convertion ke rso) dan guna option use the same coord system as data frame semasa export, jika tidak mmg. +. Box 1: Coordinate conversion between geographical coordinate and cartesian coordinate Box 2: Transformation between various datums using Bursa-Wolf formulae Box 3: Map projection of MRT68 / BT68 geographical coordinate to Rectified Skew Orthomorphic (RSO) plane coordinates Box 4: Coordinate transformation from RSO to Cassini using polynomial Address. Select Map Datum Decimal Degrees. One thing I noticed in the README is that the shorelines database uses WGS84 coordinates and river database was generated form other source using WGS 72. More GPS based realizations of WGS84 followed, WGS84 (G873) on January 29, 1997, and. dokumen Technical Guide to the Coordinate Conversion, Datum. It offers WGS84 to RSO, WGS84 to Cassini-Soldner and . Example of Dutch grid (RD / AME-7): 192309 325406. GeoMedia automatically performs datum transformation between two different coordinate system. Only this "allows translation between any pair of definable coordinate systems, including support for datum translation" (from the man-page of proj). DD (Decimal Degrees)It has been common practice to assume that NZGD2000 and WGS84 are the same, for practical purposes. Hot Network QuestionsCoordinates of Borneo RSO with large map. At the Transformation Modules, select GDM2000 to RSO Geocentric(Peninsular) to convert into RSO New and MRT48 to MRSO to convert to RSO Old. This is the video for demonstrating convert local state data to WGS84 coordinate system. 2 --lat, lon as deg min sec 38. tracy. Projection: 4326 Home | Upload Your Own | List user-contributed references | List all referencesMilestone. Rick Simpson outlined a pretty easy-to-remember regimen for taking RSO, which amounts to users taking a total of 60 grams (2. This is your go-to friend for your NAD83 -> WGS84 converting needs! You will find several other useful utilities at that site as well. 135 reviews. I would suggest to use the correct EPSG codes, that is: EPSG:4267 NAD27 EPSG:4269 NAD83 EPSG:4326 WGS84. It was revised to become WGS84 (G730) to incorporate GPS observations. Following a request from a visitor, I added the option to convert to and from Geocentric cartesian coordinates (X, Y, Z). After entering the values to be converted, either click on the calculator or confirm with the Enter key. That realization was implemented in GPS by the Operational Control Segment, OCS on June 29, 1994. Datum: Timbalai 1948. ras will be byte. | Large map | Coordinates to address TWCC, "The World Coordinate Converter", is an Open Source tool to convert geodetic coordinates in a wide range of reference systems. Then it will do a projection conversion from Mercator to RSO projection to get the BRSO (Timbalai) coordinates. 02-16-2017 07:16 AM. After that I right click the layer goto data and export and then export the feature/layer to the new coordinate system. PGC Coordinate Converter Enter values into the coordinate tool and the values will automatically update. Generate Control Points. • Save Current Location/ View location on Map. In the Search field, type in a partial string for the WGS84 latitude, longitude system, e. This works in all directions and with all valid values. 2) Where accuracy is important the National Grid Transformation, OSTN02. Development of Web-Based Application for Shapefile Coordinate System Conversion for Malaysia. 257 223 563 ≈ 0. Our Platform This free online Conversion application is provided by Aspose. By Google Maps you can navigate to the coordinate, so you can use this app for geo-caching. This mapplet will display and locate SVY21 easting, northing coordinates on Google Maps. I found out that WGS84 is an ellipsoid with a "geoid component", but I'm unsure exactly how that can be. 62, -67. 23644287499999 PARM2: . The Select Source Coordinate System dialog appears. Click "File" and select the WAV file you previously converted from MP3. Show Borneo RSO (Timbalai) Coordinates. 09 494492. Transform between WGS84 and GCJ02 from pygcj. The first is a 'bookkeeping' transformation that simply gets you between NAD83 CSRS and WGS84 (parameters are zeroes). Your WGS84 coordinates turn into UTM less than a minute. I am having problems getting Global Mapper 10. 500522187483 39. I am having problems getting Global Mapper 10. create(3857) // WGS84 SpatialReference srTo = SpatialReference. 6. I am using OpenStreetMap (OSM) data (WGS84) for trails, roads, water features, etc. First of all, one should understand that the 3-D Cartesian frames to which the. Select the Main tab (if it is not active) Type in one or more easting and northing coordinates in the Easting, northing text box, e. Viewed 828 times 0 This is a Malaysia map and there is only two GDM2000 or Cassini. Engineering survey, topographic mapping. Typically, NAD83 and WGS84 are within one meter of each other. bd09mctobd09 (x, y) Convert coordinates from BD09MC to BD09. . Replaces WGS 84 to EGM96 height (1) (CT code 15781). 6 6. Input the coordinates in a decimal degrees (DD)4 format. 4Replace the coordinates below with a comma separated (CSV) list with one UTM point on every line. Features : - Converts coordinate data files. By default, the lengths of the semimajor axis and semiminor axis are in meters. No milestone. MYGEOTRANSLATOR USER MANUALL v1. 0211 or N 50 45. I'm trying to convert US census data (NAD83) to WGS84. 297,2. WGS84 (g1762) is equal essentially to ITRF08 and IGS08 unless your WGS84 data is produced with a correction source that is based on a different datum or epoch. Context 1. DO NOT use Define Projection tool or change the coordinate system from Feature class Properties (in ArcCatalog). Here’s a simplified table for converting degrees of latitude to meters for different latitudes: Latitude (Decimal Degrees) Approximate Distance (Meters) 0° (Equator) 111,319. 919,5. Remarks: Derived by Racal Survey for SSB at 24 coastal stations (including Timbalai. DatumTran - Transformation software (No GDA94 - GDA2020 support) DatumTran is a Windows compatible program that transforms common GIS data files of grid or geographic coordinates between Australian Geodetic Datums (AGD66 / AGD84) and GDA94. 97/111000) = 1. 7 on 45 votes. I have an autocad dwg which is in RSO (Borneo) and units is in metres. You will get the better values -104. pygcj import GCJProj trans = GCJProj # wgs84 to gcj gcj_lat, gcj_lon = trans. For decimal degrees, remember to include the negative sign for south and west coordinates!. This help content & information General Help Center experience. Original projection definition in chains (1 chain = 66 feet) - see CRS code 29871. EPSG:19894 Conversion for Brunei - onshore and offshore; Malaysia - East Malaysia (Sabah; Sarawak) - onshore and offshore. Accuracy 10m, 10m and 12m in X, Y and Z axes. It also happen for coordinate system. After loading your DWG file and specifying the RSO Borneo projection to properly position it, you can then go to the Projection tab of the Configuration dialog and set the. DesignThailand. Both RSO and Cassini projection are converted to WGS84. 23644287499999 PARM2: . Tutti i file vengono elaborati sui nostri server. The funky WGS 1984 "sphere" conversion is done in the projection algorithm, rather than via a geographic/datum transformation. Adopts metric conversion of 0. See Kertau (RSO) / RSO Malaya (ch) (CRS code 3168) for Imperial version. 23644287499999 PARM2: . Convert UTM position (zone/easting/northing) to a. The RSO is an oblique Mercator projection used for topographical mapping application in Malaysia. Used by Shell in East Malaysia. Not sure how to correctly apply the epoch values for the ETRF/ITRF conversion yet; will looking into it more and ask if later have questions. - Need script to convert RSO (MRSO) to WGS84 - Preferred language for the script is Groovy, but no hard restrictions on it Datum Values : Coordinate System Parameters CS_NAME: MAL-MRSO DESC_NM: Peninsula Malaysia, RSO System, Metres DT_NAME: KERTAU48 GROUP: ASIA MAP_SCL: 1 PARM1: 105. No restriction on Feature type names/File Names . This is the video for demonstrating convert local state data to WGS84 coordinate system. Learn more…. LANTMÄTERIET 5(8) After the first transformation, the ETRF 2014 coordinates at epoch 2020. Longitude (Degrees): Converting WGS84 degrees to meters involves accounting for the Earth’s curvature and varies based on latitude. Posted on September 7, 2015 Author shahabuddin Categories Knowledge Post navigation. I have a series of coordinates for locations in Sichuan Province China that I need to convert so that I can use them in Google Earth. Datum. The current version of WGS84 is closely related to ITRF 2000 (epoch 2001. In this formula, we have the values of x, y, z and R from step 2. There's no set epoch/realization on the WGS 1984 definition. X: Y: More details. 2. 3. We would like to show you a description here but the site won’t allow us. Coordinates on a map - pick GPS lat & long or coordinates in a projection system. T. Nine co-located Ground Control Points (GCPs) that are defined with reference to the two. by steelissteelis. EPSG:3858 Transformation for World. Geodesy, cadastre. To exemplify, a RSO layer in Semenanjung Malaysia has Kertau, Pahang as its reference point so I tell them imagine shining a torchlight on a map of Semenanjung Malaysia to encompass the whole of it. This tool converts coordinates from one datum to another datum. Your data is instantly reprojected to the new datum and. Timbalai_1948_RSO_Borneo_Meters . 59 7. After that I drag the layer to another data frame and click on close when asked for Transformation. Then it will do a projection conversion from Mercator to RSO projection to get the BRSO (Timbalai) coordinates. Both RSO and Cassini projection are converted to WGS84. Information source: GDM2000 Technical Manual; Department of Survey and Mapping Malaysia. As Google Maps are using the Mercator projection on WGS84 datum, the mapplet will perform a datum transformation from WGS84 to the Timbalai datum using the Standard Molodensky 3-parameters transformation. WGS84 frames are specifically named NAD83 (CORS96) and WGS84 (G1150). EPSG:3168 Projected coordinate system for Malaysia - West Malaysia onshore. Analysts have the ability to: Convert several coordinate formats in one dialog. How to transform UTM to NAD83 using Transformation. 5, JUNE 2013 [ISSN: 2045-7057] 60 WGS84 to Adindan-Sudan Datum Transformation Manipulated by ITRF96 Dr. Modified 6 months ago. 179 Northing, -21962. Improve this answer. I am having problems getting Global Mapper 10. Click the button “Compute” to make the conversion. via the ITRF" by Cramer et al, IAG Proceedings, Section II, Munich, October 5-9, 1998; revised 11 March. UTM, UTMRF. Remarks: Derived during GPS campaign which established PRS92 coordinates at 330 first order stations. com, all files processing perform on our own dedicated cloud servers under dynamic file system that automatically remove all processed files from our cloud servers after 1 to 24 hours. I hope you spotted the difference! Very similar names for two different things. DSMM has produced various sets of transformation parameter to relate the different types of coordinate systems in. Transform coordinates for position on a map - converting latitude / longitude degrees. I am trying to convert WGS84 coordinates to UTM however I am not getting the expected results. You can convert back and forth between PSAD56 and WGS84 in most Andean countries in the UTM coordinate system using these values (mean values for Andean countries). I think I need to brush up on my Maths before delving any deeper into the world of datum conversion! As the data is static and I only really need to run a conversion once (for the time being), I've decided to complete this task via visual basic from within the OS spreadhseet itself, looping through each set of E/N co-ordinates and. Google Maps is in a projected coordinate system that is based on the wgs84 datum. Asin is arc sin, which is a mathematical function, and atan2 is a variation of the arc tangent function. Derived at 8 stations. To convert easting,northing to latitude,longitude. East Malaysia Geodetic Scientific NetworkAddress. Geodesy. Unless you're using your data in a survey you are. See Kertau (RSO) / RSO Malaya (ch) (CRS code 3168) for Imperial version. Precision Current Postion WGS84 Coordinate GCJ02 Coordinate BD09 Coordinate Map Coordinate System Converter Online-summary The Map Coordinate System Converter. Horizontal datums are used for describing a point on the earth's surface, in latitude and longitude or another coordinate system. If I can't see, I can't pass the coordinate info to my friends if they don't use Nokia. WGS84 is not an option in the conversion tool. 23644287499999 PARM2: . Previous: EPSG:29871: Timbalai 1948 / RSO. Transform your coordinates online easily with epsg. AbdElrahim Elgizouli Mohammed1 and Dr. If I have records from all over the world then which NAD 83 do I use in place of WGS84? For now, you may use HTDP to transform WGS84 to NAD 83 first and use the transformed NAD 83 coordinates in NCAT. UoM: m. 572, 174226. For decimal degrees, remember to include the negative sign for south and west coordinates! This online geographic calculator is useful to convert between Lat/Lon coordinates and Timbalai 1948/Rectified Skewed Orthomorphic Borneo (M) grid coordinates. Relative to WGS 84 / World Mercator (CRS code 3395) gives errors of 0. -. WGS 66. Which, afterwards, I plan to re align the map using JOSM ( & also register the alignment using the map align plugin). I am trying to perform a reprojection for data with datum Nad27 to WGS84 datum. while for Proj. T. love (Tracy Love) September 9, 2019, 3:30am 6. 2 CASSINI-SOLDNER PROJECTION 4. 59 1. yolov5. You may access HTDP from here PGC Coordinate Converter Enter values into the coordinate tool and the values will automatically update. Enter the coordinates and choose the current datum of the coordinates and to which datum they need to be converted. Hotine (Snyder, 1984) called the projection as "rectified skew orthomorphic". Transforming coordinates between wgs84 and UTM ED50 31N. Conversion in Metric coordinates. We would like to show you a description here but the site won’t allow us. Convert Geographic Units. Accuracy 10m, 10m and 12m in X, Y and Z axes. Converthelper. WGS84 is not an option in the conversion tool. The difference is about half a meter (only reflecting the tectonic movements), and to make sure it stays little , WGS84 has been adjusted from time to time with so-called time-frames. for Northing which is located in some where west of Batang Rajang, south of Kanowit. Axes: easting, northing (E,N). docx), PDF File (. To convert latitude,longitude to easting,northing Center coordinates436306. In this video, I will show you how to convert lat long to easting northing using QGIS software. PGC Coordinate Converter. 685983, 6. Replaces Kertau (RSO) / RSO Malaya (CRS codes 3167-68). The symbol * stands for multiplication. Timbalai_1948_RSO_Borneo_Meters . projection (WGS84, UTM) issue. 068, -4. Select a popular spatial reference system from the drop-down list or choose a custom system to enter the functioning EPSG code by yourself. My result differs significantly (some 400m) from the one i. For now, let see what I have been done using those parameter. Assumes SIRGAS 1995 and WGS 84 can be considered the same to within the accuracy of the transformation. NAD_1983_CSRS_To_WGS_1984_2. . Cambodia. Convert double GPS coordinates (latitude, longitude), UTM coordinates, GeoHash, Rijks Driehoek/Dutch Coordinates, UK OSGB36 and What3Words! Autodetection for the following formats: GPS WGS84 examples: 50. EPSG:4326 WGS 84 -- WGS84 - World Geodetic System 1984, used in GPSContext in source publication. 13 99. Functions. Quality of the resulting coordinates derived from such conversion procedure depends mainly on. When converting between WGS84 and GDM2000/Peninsular RSO (EPSG:3375), result from proj4js are very different from the one produced by cs2cs or PostGIS. A procedure for transforming Cassini grid coordinates (planimetric only) to UTM coordinates on the Excel spreadsheet is outlined. 5 Click on Target Coordinate System. 25). Coordinate Transformation is the process of changing of coordinate system or datum from one system to another for the purpose of its usage on different application and base map. - RSO = The old RSO uses an old Everest ellipsoid ref, projected using some kind of oblique Mercator model. E = wgs84Ellipsoid (lengthUnit) creates a WGS84 reference ellipsoid with the length unit specified by lengthUnit. 04-26-2015 06:15 PM. If you encounter offsets of about 25m, use EPSG:3168 Kertau (RSO) / RSO Malaya (m) instead: Once you have saved a shapefile with the right CRS, you can copy the . Export. Replaces WGS 84 to EGM84 height (1) (CT 15781). A utility library for converting decimal WGS84 longitude and latitude coordinates into ETRS89 and/or British National Grid (More correctly: OSGB36, or EPSG:27700) Eastings and Northings, and vice versa. How to convert WGS84 to UTM when the study area covers two zones: UTM 51N and 52N. Hotine (Snyder, 1984) called the projection as "rectified skew orthomorphic". The second assumes WGS 1984 = ITRF96 (1997. Input coordinates using decimal format. p/s info conversion dalam tenet semuanya pening2. Replaces Timbalai 1948 / RSO Borneo (CRS codes 29871 and 29873). dbf, . Used by Shell in East Malaysia. The Global Positioning System uses the World Geodetic System (WGS84) as its reference coordinate system. - Need script to convert RSO (MRSO) to WGS84 - Preferred language for the script is Groovy, but no hard restrictions on it Datum Values : Coordinate System Parameters CS_NAME: MAL-MRSO DESC_NM: Peninsula Malaysia, RSO System, Metres DT_NAME: KERTAU48 GROUP: ASIA MAP_SCL: 1 PARM1: 105. ; In the Search field, type in a partial string for the WGS84 latitude, longitude system, e. 23644287499999 PARM2: . g. GCJ02 coordinates is the first encryption applied. Insert the ellipsoidal height if available or leave it blank if not available. Derivation of gravity-related heights from. Geographic data from Chinese official websites and coordinates from Chinese map providers such as Gaode and QQ map are GCJ02 coordinates. There are transformation parametres from ETRS89 to WGS84 time frame xyz, but you have to know the time frame your WGS84 data is actually recorded. EMLID only uses a single reference system the WGS84. The comparison results show that Columbus and AllTrans software are more suitable for transformation between WGS84 and Minna datums. Step 2: Execute the conversion program in BW system to convert the existing COPR/MPRO to HCPR. The program was developed during my first degree in Geoinformatics (1999. 88 with NO additional information other than elevation figures. Currently, the WGS84 ellipsoid is used as the underlying model of Earth in the UTM coordinate system. Modified 6 months ago. CONCATENATEDOPERATION ["Kertau (RSO) to WGS 84 (1)", VERSION ["OGP-Mys"], SOURCECRS [GEOGCRS ["Kertau (RSO)", DATUM ["Kertau (RSO)",. Not used for 1969 metrication of RSO grid - see Kertau (RSO) (code 6751). But I am expecting (656539. 3. 2. Puoi anche provare molti altri formati per la conversione. 04-26-2015 06:15 PM. I am doing research about converting the coordinate system from Wgs84 to Rectify Skew Orthomorphic Borneo (BRSO) map projection system which is very useful for Sabah and Sarawak but I have two problems: When I convert the WGS84 to BRSO, I only can convert until the part BT68. How do I make a conversion from WGS84 (longitude, latitude) to Kertau RSO using ArcGIS Android? I looking into this for my project. 0) so it's pretty old. If I can't see, I can't pass the coordinate info to my friends if they don't use Nokia. WGS84 is not an option in the conversion tool. We have detected objects on UAV data using Yolo v5 and obtained bounding box coordinates (x1,y1,x2,y2) in the format relative to the origin of the satellite data. 096. 914398 metres per yard. Some methods convert the geographic coordinates to geocentric (X,Y,Z) coordinates, transform the X,Y,Z coordinates, and convert the new values back to geographic coordinates. create(3857) // WGS84 SpatialReference srTo = SpatialReference. World Basemaps (WGS84) description: For several years, Esri has made available a suite of basemaps that can be used through ArcGIS Online and other apps to create maps and apps. example. Transforming coordinates between wgs84 and UTM ED50 31N. A KML file stores coordinates as latitude, logitude (WGS84). 1. For migrating a MultiProvider to a CompositeProvider SAP offers program RSO_CONVERT_IPRO_TO_HCPR which does this task automatically. How can transform UTM Geographical coordinates from Zone 19 to Zone 18? 2. 90877629414095. Hot Network Questions Who choreographs meetings between China and the United States?How to Transform SLD 99 to WGS 84 by Q GIS SoftwareClick Convert to convert the input coordinates into WGS84, GCJ02 and BD09 coordinates at the same time. The last two are identical for GDAL. -. problem that may arise is the positional shift when converting from non-geocentric datum such as RSO MRT1948 to geocentric datum such as RSO GDM2000. Coordinates of WGS 84 with large map. Description: (0,) Covered area powered by MapTiler. 13010236111111 +k=0. Your concerns about differences of 2. -. var marker = new google. I tried a conversion from EPSG:6667 to EPSG:4979 with adjusted input data, but the result is a noop , so maybe there is no difference after all. 02 seems to convert UTM48N(WGS84) coordinates to RSO West Malaysia (Kertau 1948) I used the Tools > Coordinate Convertor to convert the UTM coordinate (378000, 174000). Your local system is accurately north-south aligned: convert the known lat/lon coordinate to a cartesian coord (easting,northing). 3 Conversion to Geocentric RSO Coordinate System The RSO is an oblique Mercator projection used for topographical mapping application in Malaysia . This is a very old program for one-way coordinates transformation from WGS84 – MRT – RSO to Cassini-Soldner.