EPSG:6649

International Terrestrial Reference Frame 1990

Attributes

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: International Earth Rotation Service (IERS) Technical Note No. 9, December 1991. Also IGN Paris http://lareg.ensg.ign.fr/ITRF

Revision date: 2020-08-31

Scope: Geodesy.

Remarks: Realization of the IERS Terrestrial Reference System (ITRS) from December 1991. Replaces ITRF89 (code 6648). Replaced by ITRF91 (code 6650).

Area of use: World.

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WGS84 bounds:
179.9 -85.0
-179.9 85.0

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Definition: OGC Well Known Text

DATUM["International_Terrestrial_Reference_Frame_1990",
    SPHEROID["GRS 1980",6378137,298.257222101,
        AUTHORITY["EPSG","7019"]],
    AUTHORITY["EPSG","6649"]]

Definition: OGC Well Known Text 2 (2019)

DYNAMIC[
    FRAMEEPOCH[1988]],
DATUM["International Terrestrial Reference Frame 1990",
    ELLIPSOID["GRS 1980",6378137,298.257222101,
        LENGTHUNIT["metre",1]],
    ID["EPSG",6649]]

Definition: ESRI Well Known Text

DATUM["D_ITRF_1990",
    SPHEROID["GRS_1980",6378137.0,298.257222101]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "DynamicGeodeticReferenceFrame",
    "name": "International Terrestrial Reference Frame 1990",
    "frame_reference_epoch": 1988,
    "ellipsoid": {
        "name": "GRS 1980",
        "semi_major_axis": 6378137,
        "inverse_flattening": 298.257222101
    },
    "scope": "Geodesy.",
    "area": "World.",
    "bbox": {
        "south_latitude": -90,
        "west_longitude": -180,
        "north_latitude": 90,
        "east_longitude": 180
    },
    "id": {
        "authority": "EPSG",
        "code": 6649
    }
}

Definition: GeoServer

6649-datum=DATUM["International_Terrestrial_Reference_Frame_1990",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6649"]]