Geocentric translations (geog2D domain)
Derived at 7 stations. Accuracy 12m, 10m and 15m in X, Y and Z axes. Care! DMA ellipsoid is inconsistent with EPSG ellipsoid - transformation parameter values may not be appropriate. Also source CRS may not apply to Nepal.
U.S. Defense Mapping Agency TR8350.2 revision of August 1993.
2020-03-14
Engineering survey, topographic mapping.
Used by India since metrication. Metric conversion applies A.R.Clarke's Indian foot-British foot ratio of 0.99999566 and J.S.Clark's 1865 British inch-metre ratio of 39.369971 rounded as 1 Ind ft = 0.3047995m exactly.
India - mainland onshore south of 15°N.
Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
3034270.86 2000360.1
1433704.88 474200.89
4664660.44 3647385.33
68.13 8.02
97.42 35.51
Definition: OGC Well Known Text
PROJCS["Kalianpur 1975 / India zone IVa", GEOGCS["Kalianpur 1975", DATUM["Kalianpur_1975", SPHEROID["Everest 1830 (1975 Definition)",6377299.151,300.8017255], TOWGS84[295,736,257,0,0,0,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4146"]], PROJECTION["Lambert_Conformal_Conic_1SP"], PARAMETER["latitude_of_origin",12], PARAMETER["central_meridian",80], PARAMETER["scale_factor",0.99878641], PARAMETER["false_easting",2743195.5], PARAMETER["false_northing",914398.5], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","24383"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["Kalianpur 1975 / India zone IVa", BASEGEOGCRS["Kalianpur 1975", DATUM["Kalianpur 1975", ELLIPSOID["Everest 1830 (1975 Definition)",6377299.151,300.8017255, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4146]], CONVERSION["India zone IVa (1975 metres)", METHOD["Lambert Conic Conformal (1SP)", ID["EPSG",9801]], PARAMETER["Latitude of natural origin",12, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",80, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.99878641, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",2743195.5, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",914398.5, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["India - mainland onshore south of 15°N."], BBOX[8.02,73.94,15.01,80.4]], ID["EPSG",24383]]
Definition: ESRI Well Known Text
PROJCS["Kalianpur_1975_India_Zone_IV", GEOGCS["GCS_Kalianpur_1975", DATUM["D_Kalianpur_1975", SPHEROID["Everest_Definition_1975",6377299.151,300.8017255]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Lambert_Conformal_Conic"], PARAMETER["False_Easting",2743195.5], PARAMETER["False_Northing",914398.5], PARAMETER["Central_Meridian",80.0], PARAMETER["Standard_Parallel_1",12.0], PARAMETER["Scale_Factor",0.99878641], PARAMETER["Latitude_Of_Origin",12.0], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "Kalianpur 1975 / India zone IVa", "base_crs": { "name": "Kalianpur 1975", "datum": { "type": "GeodeticReferenceFrame", "name": "Kalianpur 1975", "ellipsoid": { "name": "Everest 1830 (1975 Definition)", "semi_major_axis": 6377299.151, "inverse_flattening": 300.8017255 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4146 } }, "conversion": { "name": "India zone IVa (1975 metres)", "method": { "name": "Lambert Conic Conformal (1SP)", "id": { "authority": "EPSG", "code": 9801 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 12, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 80, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.99878641, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 2743195.5, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 914398.5, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "scope": "Engineering survey, topographic mapping.", "area": "India - mainland onshore south of 15°N.", "bbox": { "south_latitude": 8.02, "west_longitude": 73.94, "north_latitude": 15.01, "east_longitude": 80.4 }, "id": { "authority": "EPSG", "code": 24383 } }
Definition: GeoServer
24383=PROJCS["Kalianpur 1975 / India zone IVa",GEOGCS["Kalianpur 1975",DATUM["Kalianpur_1975",SPHEROID["Everest 1830 (1975 Definition)",6377299.151,300.8017255],TOWGS84[295,736,257,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4146"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",12],PARAMETER["central_meridian",80],PARAMETER["scale_factor",0.99878641],PARAMETER["false_easting",2743195.5],PARAMETER["false_northing",914398.5],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","24383"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5 +a=6377299.151 +rf=300.8017255 +towgs84=295,736,257,0,0,0,0 +units=m +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5 +a=6377299.151 +rf=300.8017255 +towgs84=295,736,257,0,0,0,0 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 24383, 'EPSG', 24383, '+proj=lcc +lat_1=12 +lat_0=12 +lon_0=80 +k_0=0.99878641 +x_0=2743195.5 +y_0=914398.5 +a=6377299.151 +rf=300.8017255 +towgs84=295,736,257,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Kalianpur 1975 / India zone IVa",GEOGCS["Kalianpur 1975",DATUM["Kalianpur_1975",SPHEROID["Everest 1830 (1975 Definition)",6377299.151,300.8017255],TOWGS84[295,736,257,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4146"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",12],PARAMETER["central_meridian",80],PARAMETER["scale_factor",0.99878641],PARAMETER["false_easting",2743195.5],PARAMETER["false_northing",914398.5],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","24383"]]');