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Geodetic CRS: SRGI2013 epoch 2021.0
Datum: Sistem Referensi Geospasial Indonesia 2013 epoch 2021.0
Ellipsoid: WGS 84
Prime meridian: Greenwich
Data source: EPSG
Information source: Geospatial Information Agency (BIG), https://srgi.big.go.id
Revision date: 2025-11-12
Scope: Reversible geoid model transformation.
Remarks: Reversible alternative to SRGI2013 epoch 2021.0 to INAGeoid2020 v2 height (1) (code 11273). Although the interpolation CRS is given as SRGI2013 epoch 2021.0, any realization of SRGI2013 including SRGI2013 epoch 2012.0 is adequte for interpolating the geoid model grid.
Method: Geog3D to Geog2D+GravityRelatedHeight (gtx)
Area of use: Indonesia - onshore and offshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["SRGI2013 epoch 2021.0 to SRGI2013 epoch 2021.0 + INAGeoid2020 v2 height (1)", VERSION["BIG-Idn INAGeoid20 v2"], SOURCECRS[ GEOGCRS["SRGI2013 epoch 2021.0", DATUM["Sistem Referensi Geospasial Indonesia 2013 epoch 2021.0", ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ANCHOREPOCH[2021]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,3], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], AXIS["ellipsoidal height (h)",up, ORDER[3], LENGTHUNIT["metre",1]], ID["EPSG",11030]]], TARGETCRS[ COMPOUNDCRS["SRGI2013 epoch 2021.0 + INAGeoid2020 v2 height", GEOGCRS["SRGI2013 epoch 2021.0", DATUM["Sistem Referensi Geospasial Indonesia 2013 epoch 2021.0", ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ANCHOREPOCH[2021]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,2], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]]], VERTCRS["INAGeoid2020 v2 height", VDATUM["Indonesian Geoid 2020 version 2"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]]], ID["EPSG",11274]]], METHOD["Geog3D to Geog2D+GravityRelatedHeight (gtx)", ID["EPSG",1088]], PARAMETERFILE["Geoid (height correction) model file","INAGEOID2020v2.gtx"], INTERPOLATIONCRS[ GEOGCRS["SRGI2013 epoch 2021.0", DATUM["Sistem Referensi Geospasial Indonesia 2013 epoch 2021.0", ELLIPSOID["WGS 84",6378137,298.257223563, LENGTHUNIT["metre",1]], ANCHOREPOCH[2021]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,3], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], AXIS["ellipsoidal height (h)",up, ORDER[3], LENGTHUNIT["metre",1]]]], OPERATIONACCURACY[0.1], USAGE[ SCOPE["Reversible geoid model transformation."], AREA["Indonesia - onshore and offshore."], BBOX[-13.95,92.01,7.79,141.46]], ID["EPSG",11275], REMARK["Reversible alternative to SRGI2013 epoch 2021.0 to INAGeoid2020 v2 height (1) (code 11273). Although the interpolation CRS is given as SRGI2013 epoch 2021.0, any realization of SRGI2013 including SRGI2013 epoch 2012.0 is adequte for interpolating the geoid model grid."]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:11275","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=INAGEOID2020v2.gtx +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "SRGI2013 epoch 2021.0 to SRGI2013 epoch 2021.0 + INAGeoid2020 v2 height (1)", "source_crs": { "type": "GeographicCRS", "name": "SRGI2013 epoch 2021.0", "datum": { "type": "GeodeticReferenceFrame", "name": "Sistem Referensi Geospasial Indonesia 2013 epoch 2021.0", "anchor_epoch": 2021, "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 11030 }, "remarks": "Static snapshot at epoch 2021.0 of SRGI2013 dynamic CRS (CRS code 9469). Geometric component of national geodetic control network (JKG). Replaces SRGI2013 epoch 2012.0 coordinates of INACORS GNSS reference stations from 2025-02-25T14:10Z." }, "target_crs": { "type": "CompoundCRS", "name": "SRGI2013 epoch 2021.0 + INAGeoid2020 v2 height", "components": [ { "type": "GeographicCRS", "name": "SRGI2013 epoch 2021.0", "datum": { "type": "GeodeticReferenceFrame", "name": "Sistem Referensi Geospasial Indonesia 2013 epoch 2021.0", "anchor_epoch": 2021, "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "remarks": "Horizontal component of geographic 3D CRS (code 11030). Horizontal component (JKHN) of national geodetic control network (JKG)." }, { "type": "VerticalCRS", "name": "INAGeoid2020 v2 height", "datum": { "type": "VerticalReferenceFrame", "name": "Indonesian Geoid 2020 version 2" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] } } ], "id": { "authority": "EPSG", "code": 11274 } }, "interpolation_crs": { "type": "GeographicCRS", "name": "SRGI2013 epoch 2021.0", "datum": { "type": "GeodeticReferenceFrame", "name": "Sistem Referensi Geospasial Indonesia 2013 epoch 2021.0", "anchor_epoch": 2021, "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 11030 }, "remarks": "Static snapshot at epoch 2021.0 of SRGI2013 dynamic CRS (CRS code 9469). Geometric component of national geodetic control network (JKG). Replaces SRGI2013 epoch 2012.0 coordinates of INACORS GNSS reference stations from 2025-02-25T14:10Z." }, "method": { "name": "Geog3D to Geog2D+GravityRelatedHeight (gtx)", "id": { "authority": "EPSG", "code": 1088 } }, "parameters": [ { "name": "Geoid (height correction) model file", "value": "INAGEOID2020v2.gtx", "id": { "authority": "EPSG", "code": 8666 } } ], "accuracy": "0.1", "scope": "Reversible geoid model transformation.", "area": "Indonesia - onshore and offshore.", "bbox": { "south_latitude": -13.95, "west_longitude": 92.01, "north_latitude": 7.79, "east_longitude": 141.46 }, "id": { "authority": "EPSG", "code": 11275 }, "remarks": "Reversible alternative to SRGI2013 epoch 2021.0 to INAGeoid2020 v2 height (1) (code 11273). Although the interpolation CRS is given as SRGI2013 epoch 2021.0, any realization of SRGI2013 including SRGI2013 epoch 2012.0 is adequte for interpolating the geoid model grid." }
Definition: MapServer - MAPfile
PROJECTION "proj=pipeline" "step" "proj=axisswap" "order=2,1" "step" "proj=unitconvert" "xy_in=deg" "xy_out=rad" "step" "inv" "proj=vgridshift" "grids=INAGEOID2020v2.gtx" "multiplier=1" "step" "proj=unitconvert" "xy_in=rad" "xy_out=deg" "step" "proj=axisswap" "order=2,1" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=INAGEOID2020v2.gtx +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> <Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=INAGEOID2020v2.gtx +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 11275, 'EPSG', 11275, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=INAGEOID2020v2.gtx +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');
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