EPSG:3326 — IGC 1962 / Congo TM zone 28

PROJCRS[
    "IGC 1962 / Congo TM zone 28",
    BASEGEOGCRS[
        "IGC 1962 6th Parallel South",
        DATUM[
            "IGC 1962 Arc of the 6th Parallel South",
            ELLIPSOID[
                "Clarke 1880 (RGS)",
                6378249.145,
                293.465,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7012]
            ],
            ID["EPSG",6697]
        ],
        ID["EPSG",4697]
    ],
    CONVERSION[
        "Congo Transverse Mercator zone 28",
        METHOD["Transverse Mercator",ID["EPSG",9807]],
        PARAMETER[
            "Latitude of natural origin",
            0,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8801]
        ],
        PARAMETER[
            "Longitude of natural origin",
            28,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "Scale factor at natural origin",
            0.9999,
            SCALEUNIT["unity",1,ID["EPSG",9201]],
            ID["EPSG",8805]
        ],
        PARAMETER[
            "False easting",
            500000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            10000000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",17428]
    ],
    CS[Cartesian,2,ID["EPSG",4400]],
    AXIS["Easting (E)",east],
    AXIS["Northing (N)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",3326]
]

+proj=tmerc +lat_0=0 +lon_0=28 +k=0.9999 +x_0=500000 +y_0=10000000 +a=6378249.145 +rf=293.465 +units=m +no_defs +type=crs

proj4.defs("EPSG:3326", "+proj=tmerc +lat_0=0 +lon_0=28 +k=0.9999 +x_0=500000 +y_0=10000000 +a=6378249.145 +rf=293.465 +units=m +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 3326,
  "name": "IGC 1962 / Congo TM zone 28",
  "kind": "projected",
  "area": "Congo DR (Zaire) - 6th parallel south 27°E to 29°E",
  "unit": "metre",
  "bbox": [
    -7.36,
    27,
    -4.24,
    29
  ],
  "proj4": "+proj=tmerc +lat_0=0 +lon_0=28 +k=0.9999 +x_0=500000 +y_0=10000000 +a=6378249.145 +rf=293.465 +units=m +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3326, 'EPSG', 3326, '+proj=tmerc +lat_0=0 +lon_0=28 +k=0.9999 +x_0=500000 +y_0=10000000 +a=6378249.145 +rf=293.465 +units=m +no_defs +type=crs', 'PROJCS["IGC 1962 / Congo TM zone 28",GEOGCS["IGC 1962 6th Parallel South",DATUM["IGC_1962_Arc_of_the_6th_Parallel_South",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],AUTHORITY["EPSG","6697"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4697"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",28],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3326"]]');

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=28"
  "+k=0.9999"
  "+x_0=500000"
  "+y_0=10000000"
  "+a=6378249.145"
  "+rf=293.465"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

3326=PROJCS["IGC 1962 / Congo TM zone 28",GEOGCS["IGC 1962 6th Parallel South",DATUM["IGC_1962_Arc_of_the_6th_Parallel_South",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],AUTHORITY["EPSG","6697"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4697"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",28],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3326"]]