[GRASS-dev] [bug #5396] (grass) hermannskogel datum parameters for Slovakia

[Markus Neteler via RT]

(msg from Jaro):

I contacted a responsible person from the Geodetic and Cartographic
Institute in Slovakia and he sent me much better paramaters that are
appropriate for GRASS (or generally for any GIS). It might be
interesting that the same incorrect parameters uses also ArcGIS.

So now it is again possible to provide a single item for Slovakia in
hermannskogel menu with these parameters. They just wanted to mention
that the parameters came from the institute (this is in fact very
useful, because then everyone knows the source).

Jaro

---

Thanks to Dr. Klobusiak from the national Geodetic and Cartographic
Institute Bratislava, we've got the following correct parameters for
Slovakia:

datumparams: towgs84=485.021,169.465,483.839,7.786342,4.397554,4.102655,0

These parameters are recommended by this Institute. If possible please
include the following note in the appropriate source code line:
"These parameters for Slovak S-JTSK coordinate system were recommended
by the Geodetic and Cartographic Institute Bratislava in 19/12/2006,
http://www.gku.sk"
The parameter errors reported by P. Paudits are between 0.48 to 2.11 m
(average 1.21 m). In case of JTSK/03 the errors should be within few cm
or dm.
Thanks.


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