metre
Military survey.
None
Egypt - east of 33°E - onshore plus offshore Gulf of Suez.
Data Source: EPSG v11.016 2024-08-31
Datum: Egypt 1907
Coordinate System: cartesian
Projection: Egypt Blue Belt
Geodetic CRS: Egypt 1907
PROJCRS["Egypt 1907 / Blue Belt",
BASEGEOGCRS["Egypt 1907",
DATUM["Egypt 1907",
ELLIPSOID["Helmert 1906",6378200,298.3,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4229]],
CONVERSION["Egypt Blue Belt",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",30,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",35,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",1,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",300000,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",1100000,
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["Military survey."],
AREA["Egypt - east of 33°E - onshore plus offshore Gulf of Suez."],
BBOX[21.97,33,31.36,36.95]],
ID["EPSG",22991]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "Egypt 1907 / Blue Belt",
"base_crs": {
"name": "Egypt 1907",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Egypt 1907",
"ellipsoid": {
"name": "Helmert 1906",
"semi_major_axis": 6378200,
"inverse_flattening": 298.3
}
},
"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": 4229
}
},
"conversion": {
"name": "Egypt Blue Belt",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 30,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": 35,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 1,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 300000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 1100000,
"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": "Military survey.",
"area": "Egypt - east of 33°E - onshore plus offshore Gulf of Suez.",
"bbox": {
"south_latitude": 21.97,
"west_longitude": 33,
"north_latitude": 31.36,
"east_longitude": 36.95
},
"id": {
"authority": "EPSG",
"code": 22991
}
}
{'crs_wkt': 'PROJCRS["Egypt 1907 / Blue Belt",BASEGEOGCRS["Egypt '
'1907",DATUM["Egypt 1907",ELLIPSOID["Helmert '
'1906",6378200,298.3,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4229]],CONVERSION["Egypt '
'Blue Belt",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",30,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",35,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",1,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",300000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
'northing",1100000,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["Military '
'survey."],AREA["Egypt - east of 33°E - onshore plus offshore Gulf '
'of Suez."],BBOX[21.97,33,31.36,36.95]],ID["EPSG",22991]]',
'false_easting': 300000.0,
'false_northing': 1100000.0,
'geographic_crs_name': 'Egypt 1907',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'Egypt 1907',
'inverse_flattening': 298.3,
'latitude_of_projection_origin': 30.0,
'longitude_of_central_meridian': 35.0,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'Egypt 1907 / Blue Belt',
'reference_ellipsoid_name': 'Helmert 1906',
'scale_factor_at_central_meridian': 1.0,
'semi_major_axis': 6378200.0,
'semi_minor_axis': 6356818.169627891}