----------------------------Original message---------------------------- Dear MAPS-L members, my name is Andrea Hausold and I work at the German Aerospace Research Establishment. Currently I have a little problem concerning coordinates and transformation: I have geographic coordinates (lat/long) which are based on Bessel-Ellipsoid (out of german topographic maps) and I need to transform these to geographic coordinates bases on WGS84. Can anybody give any help? Recommend a procedure, method, software etc.? I would be very grateful for any hint. thanks a lot in advance, have a nice day, Andrea Hausold email: [log in to unmask]