18. March 2001 
Coordinate Reference Systems Switzerland
CH1903 (LV03 
- Landesvermessung 1903) 
Ellipsoid: Bessel 1841 
Map Projection: Swiss Oblique Mercator (by Rosenmund)  
Central Point/Datum: Bern, former Observatory 
CH1903+ (LV95 
- Landesvermessung 1995) 
Ellipsoid: Bessel 1841 
Map Projection: Swiss Oblique Mercator (by Rosenmund)  
Central Point/Datum: Zimmerwald, but Projection origin Bern, former Observatory  
    
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     Swiss Oblique Mercator Projection on Bessel 
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LN02 (Landesnivellement 
1902) 
Heights Type: leveled heights 
Reference Point: Repère Pierre de Niton (RPN), Geneva 
Reference Level: (derived from) Tide Gauge Marseilles 
Geoid: CHGEO98 (Swiss Geoid 1998) 
LHN95 (Landeshöhennetz 
1995) 
Heights Type: orthometric heights 
Reference Point: Repère Pierre de Niton (RPN), Geneva 
Reference Level: (derived from) Tide Gauge Marseilles 
Geoid: CHGEO98 (Swiss Geoid 1998)