EPSG:7042

Everest (1830 Definition)

Attributes

Unit: Indian foot

Data source: EPSG

Information source: "Ellipsoidisch Parameter der Erdfigur (1800-1950)" by Georg Strasser

Revision date: 2008-06-26

Remarks: Everest gave a and b to 2 decimal places and also 1/f=300.8017 (to 4 decimal places exactly). In the 19th century b was normally given as the second defining parameter.

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Definition: OGC Well Known Text

SPHEROID["Everest (1830 Definition)",6377299.36559538,300.801725543355,
    AUTHORITY["EPSG","7042"]]

Definition: OGC Well Known Text 2 (2019)

ELLIPSOID["Everest (1830 Definition)",20922931.8,300.801725543355,
    LENGTHUNIT["Indian foot",0.304799510248147],
    ID["EPSG",7042]]

Definition: ESRI Well Known Text

SPHEROID["Everest_1830",6377299.36559538,300.801725543355]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Ellipsoid",
    "name": "Everest (1830 Definition)",
    "semi_major_axis": {
        "value": 20922931.8,
        "unit": {
            "type": "LinearUnit",
            "name": "Indian foot",
            "conversion_factor": 0.304799510248147
        }
    },
    "semi_minor_axis": {
        "value": 20853374.58,
        "unit": {
            "type": "LinearUnit",
            "name": "Indian foot",
            "conversion_factor": 0.304799510248147
        }
    },
    "id": {
        "authority": "EPSG",
        "code": 7042
    }
}

Definition: GeoServer

7042-ellipsoid=SPHEROID["Everest (1830 Definition)",6377299.36559538,300.801725543355,AUTHORITY["EPSG","7042"]]