Skip to content
transform

Convert SHGD2015 to SHGD2015 + SHVD2015 height

Convert coordinates from SHGD2015 (EPSG:7885) to SHGD2015 + SHVD2015 height (EPSG:9517) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

Direct link to this transformation: epsgtransform.com/transform/epsg-7885-to-epsg-9517

Official EPSG transformation from SHGD2015 to SHGD2015 + SHVD2015 height

The EPSG Geodetic Parameter Dataset defines 1 transformation between SHGD2015 (EPSG:7885) and SHGD2015 + SHVD2015 height (EPSG:9517). Its parameters, accuracy and area of use are listed below.

SHGD2015 to SHGD2015 + SHVD2015 height (1)

EPSG:10614±0 m
Method:
Geog3D to Geog2D+GravityRelatedHeight (EGM2008)
Area of use:
St Helena - St Helena Island
Scope:
Reversible geoid model transformation.

Grid file: Und_min2.5x2.5_egm2008_isw=82_WGS84_TideFree.gz

Reversible alternative to SHGD2015 to SHVD2015 height (1) (code 7891).

Convert EPSG:7885 to EPSG:9517 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:7885", "EPSG:9517", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:7885 — SHGD2015

geographic system using latitude, longitude and ellipsoidal height · Area of use: St Helena - St Helena Island

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs +type=crs
More about EPSG:7885 →

Target: EPSG:9517 — SHGD2015 + SHVD2015 height

compound horizontal + vertical reference system · Area of use: St Helena - St Helena Island

+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +geoidgrids=us_nga_egm08_25.tif +geoid_crs=WGS84 +vunits=m +no_defs +type=crs
More about EPSG:9517 →

Frequently asked questions

How accurate is converting SHGD2015 to SHGD2015 + SHVD2015 height?
The most accurate official EPSG transformation between these systems is accurate to about ±0 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation (including the grid-shift files listed below) in a desktop GIS.
Does my data leave the browser when I use this converter?
No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.
Need the reverse? Convert EPSG:9517 to EPSG:7885 →