Via Zdenko
Original Reference:
http://www.grmada.org/slo/gps_slo.html
User Grid: (Gauss-Kruger)
Longitude Origin: E015d00.000
Scale: +0.9996 (Nb: Other sources give +0.9999, Zdenko states that
+0.9996 gives better agreement for the Tolmin region)
False Easting: +5'500'000.0m
False Northing: +0.0m
User Datum: (SLOVENIJA)
DX: +682.0m
DY: -203.0m
DZ: +480.0m
DA: +740.8m
DF: +0.10037484
Ignore the below, old information
Andrej says to simply use the German grid, as its compatible with the slovenian IAS. Not tested & confirmed yet. The word 'Datum' doesn't cross the language barrier very well. Jarv, Oct 06
Ref: page 19 http://inspire.jrc.it/reports/stateofplay2005/rcr05SIv64.pdf
Slov maps are in D48, vs WGS84 reference for GPS.
2.3.3 Geodetic reference systems and projections
The national coordinate system valid for maps and databases, has the following
characteristics:
Name: D48
Spheroid (ellipsoid) : Bessel (1841), a = 6 377 397,155 m, e = 1/299,15281285
The spheroid touches the geoid in point Hermannskogel with astronomic coordinates
(Ergebnisse 1900):
ϕ = 48° 16 15,29"
λ = 33° 57 41,06"E Ferro or
λ = 16° 17 55,04" E Greenwich
H = 558.66 m.
The geodetic network is oriented with side Hermannskogel - Hundesheimer Berg
α = 107° 31 41,70½.
Projection: Slovene Gauss-Krueger conformal transversal cylindrical projection
Latitude of origin
0° 00 00"
Longitude of origin
15° 00 00" E of Greenwich
Central meridian
15° 00 00" E of Greenwich
False easting
+ 500 000 m
False northing
- 5 000 000 m
Modulation factor
0,9999
Projection zone width
3° 15’
1.3 Transformation parameters from D48 (Bessel) to ETRS89(WGS84):
X0 = 438,7669 m
Y0 = 126,6093 m
Z0 = 457,9380 m
a = - 0° 0’ 4,323931’’
b = - 0° 0’ 4,107600’’
g = 0° 0’ 12,245081’’
scale: -16,5199 ppm
The national topographic maps (scale 1:25.000 – 1:50.000) should apply with the NATO
standards (STANAG) which requires the Universal Transverse Mercator projection using
the WGS 84 reference ellipsoid.
In order to make it possible to prepare military as well as national topographic maps and
digital data, UTM projection and WGS 84 ellipsoid is used for producing all the data at
scale 1:25.000 and smaller.
