EPSG systems

EPSG:7771 WGS 84 / India Northeast

Projected system (Lambert Conic Conformal (2SP)) in use: India - northeast. The full definition below, and conversion in one click.

System record
CodeEPSG:7771
NameWGS 84 / India Northeast
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use India - northeast
India - Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland and Tripura.
Bounds W 89,69° · S 21,94° · E 97,42° · N 29,47°
Countries India
DatumWorld Geodetic System 1984
Ellipsoid WGS 84 a = 6378137 m · 1/f = 298.257223563
Base geographic system EPSG:4326 — WGS 84
Unit metre (X east, Y north)
Transformation to WGS 84 None: this is WGS 84
ScopeNNRMS National Spatial Framework (NSF) state resource database of medium resolution earth observation imagery and mapping.

Projection parameters

ParameterValueUnit
Latitude of false origin25.63452135degree
Longitude of false origin93.5degree
Latitude of 1st standard parallel23.041666666666668degree
Latitude of 2nd standard parallel28.208333333333332degree
Easting at false origin1000000metre
Northing at false origin1000000metre

proj4 definition

+proj=lcc +lat_0=25.63452135 +lon_0=93.5 +lat_1=23.0416666666667 +lat_2=28.2083333333333 +x_0=1000000 +y_0=1000000 +datum=WGS84 +units=m +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:7771.

WKT (ESRI format, the .prj content)

PROJCS["WGS_1984_India_Northeast",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1000000.0],PARAMETER["False_Northing",1000000.0],PARAMETER["Central_Meridian",93.5],PARAMETER["Standard_Parallel_1",23.0416666666667],PARAMETER["Standard_Parallel_2",28.2083333333333],PARAMETER["Latitude_Of_Origin",25.63452135],UNIT["Meter",1.0]]

All systems — India

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.