metre
Cadastre, engineering survey, topographic mapping.
None
New Zealand - Chatham Islands group - onshore.
Data Source: EPSG v11.022 2024-11-05
Datum: Chatham Islands Datum 1979
Coordinate System: cartesian
Projection: Chatham Islands Map Grid
Geodetic CRS: Chatham Islands 1979
PROJCRS["CI1979 / Chatham Islands Map Grid",
BASEGEOGCRS["Chatham Islands 1979",
DATUM["Chatham Islands Datum 1979",
ELLIPSOID["International 1924",6378388,297,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4673]],
CONVERSION["Chatham Islands Map Grid",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",-44,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-176.5,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",1,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",350000,
LENGTHUNIT["metre",1],
ID["EPSG",8806]],
PARAMETER["False northing",650000,
LENGTHUNIT["metre",1],
ID["EPSG",8807]]],
CS[Cartesian,2],
AXIS["northing (N)",north,
ORDER[1],
LENGTHUNIT["metre",1]],
AXIS["easting (E)",east,
ORDER[2],
LENGTHUNIT["metre",1]],
USAGE[
SCOPE["Cadastre, engineering survey, topographic mapping."],
AREA["New Zealand - Chatham Islands group - onshore."],
BBOX[-44.64,-177.25,-43.3,-175.54]],
ID["EPSG",5519]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "CI1979 / Chatham Islands Map Grid",
"base_crs": {
"name": "Chatham Islands 1979",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Chatham Islands Datum 1979",
"ellipsoid": {
"name": "International 1924",
"semi_major_axis": 6378388,
"inverse_flattening": 297
}
},
"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": 4673
}
},
"conversion": {
"name": "Chatham Islands Map Grid",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": -44,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": -176.5,
"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": 350000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 650000,
"unit": "metre",
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Northing",
"abbreviation": "N",
"direction": "north",
"unit": "metre"
},
{
"name": "Easting",
"abbreviation": "E",
"direction": "east",
"unit": "metre"
}
]
},
"scope": "Cadastre, engineering survey, topographic mapping.",
"area": "New Zealand - Chatham Islands group - onshore.",
"bbox": {
"south_latitude": -44.64,
"west_longitude": -177.25,
"north_latitude": -43.3,
"east_longitude": -175.54
},
"id": {
"authority": "EPSG",
"code": 5519
}
}
{'crs_wkt': 'PROJCRS["CI1979 / Chatham Islands Map Grid",BASEGEOGCRS["Chatham '
'Islands 1979",DATUM["Chatham Islands Datum '
'1979",ELLIPSOID["International '
'1924",6378388,297,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4673]],CONVERSION["Chatham '
'Islands Map Grid",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",-44,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",-176.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",1,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",350000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
'northing",650000,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["northing '
'(N)",north,ORDER[1],LENGTHUNIT["metre",1]],AXIS["easting '
'(E)",east,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Cadastre, '
'engineering survey, topographic mapping."],AREA["New Zealand - '
'Chatham Islands group - '
'onshore."],BBOX[-44.64,-177.25,-43.3,-175.54]],ID["EPSG",5519]]',
'false_easting': 350000.0,
'false_northing': 650000.0,
'geographic_crs_name': 'Chatham Islands 1979',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'Chatham Islands Datum 1979',
'inverse_flattening': 297.0,
'latitude_of_projection_origin': -44.0,
'longitude_of_central_meridian': -176.5,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'CI1979 / Chatham Islands Map Grid',
'reference_ellipsoid_name': 'International 1924',
'scale_factor_at_central_meridian': 1.0,
'semi_major_axis': 6378388.0,
'semi_minor_axis': 6356911.9461279465}