EPSG:1646

CH1903 to ETRS89 (1)

Attributes

Geodetic CRS: CH1903

Datum: CH1903

Ellipsoid: Bessel 1841

Prime meridian: Greenwich

Data source: OGP

Information source: Bundesamt für Landestopografie swisstopo; www.swisstopo.ch. Aufbau der Landesvermessung der Schweiz 'LV95' Teil 3: Terrestrische Bezugssysteme und Bezugsrahmen. L+T 1999. Also at Eurogeographics http://www.crs-geo.eu/ to 1 decimal place precision.

Revision date: 2017-10-16

Scope: Parameter values from CH1903+ to ETRS89 (tfm code 1647) and are used as an approximation from CH1903 with a lesser accuracy of 1.5m which equates to the magnitude of distortions in the CH1903 network.

Remarks: In EPSG db v5.2 to v8.9 given to 1dm to accord with Eurogeographics precision ; the difference in output coordinates of cms is considered by swisstopo to be insignificant given the tfm accuracy. Superseded by CH1903 to ETRS89 (2) (tfm code 7674).

Method: Geocentric translations (geog2D domain)

Area of use: Liechtenstein; Switzerland.

Description: (674.374, 15.056, 405.346, 0.0, 0.0, 0.0, 0.0)

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Definition: OGP XML

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Aufbau der Landesvermessung der Schweiz &#39;LV95&#39; Teil 3: Terrestrische Bezugssysteme und Bezugsrahmen. L+T 1999. Also at Eurogeographics http://www.crs-geo.eu/ to 1 decimal place precision.<span class="nt">&lt;/epsg:informationSource&gt;</span> <span class="nt">&lt;epsg:revisionDate&gt;</span>2017-10-16<span class="nt">&lt;/epsg:revisionDate&gt;</span> <span class="nt">&lt;epsg:changes&gt;</span> <span class="nt">&lt;epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:change-request:EPSG::2006.992&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:change-request:EPSG::2015.060&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:change-request:EPSG::2016.010&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:change-request:EPSG::2017.043&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;/epsg:changes&gt;</span> <span class="nt">&lt;epsg:show&gt;</span>true<span class="nt">&lt;/epsg:show&gt;</span> <span class="nt">&lt;epsg:isDeprecated&gt;</span>false<span class="nt">&lt;/epsg:isDeprecated&gt;</span> <span class="nt">&lt;/epsg:CommonMetaData&gt;</span> <span class="nt">&lt;/gml:metaDataProperty&gt;</span> <span class="nt">&lt;gml:metaDataProperty&gt;</span> <span class="nt">&lt;epsg:CoordinateOperationMetaData&gt;</span> <span class="nt">&lt;epsg:variant&gt;</span>1<span class="nt">&lt;/epsg:variant&gt;</span> <span class="nt">&lt;/epsg:CoordinateOperationMetaData&gt;</span> <span class="nt">&lt;/gml:metaDataProperty&gt;</span> <span class="nt">&lt;gml:identifier</span> <span class="na">codeSpace=</span><span class="s">&quot;IOGP&quot;</span><span class="nt">&gt;</span>urn:ogc:def:coordinateOperation:EPSG::1646<span class="nt">&lt;/gml:identifier&gt;</span> <span class="nt">&lt;gml:name&gt;</span>CH1903 to ETRS89 (1)<span class="nt">&lt;/gml:name&gt;</span> <span class="nt">&lt;gml:remarks&gt;</span>In EPSG db v5.2 to v8.9 given to 1dm to accord with Eurogeographics precision ; the difference in output coordinates of cms is considered by swisstopo to be insignificant given the tfm accuracy. 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