I'm currently doing some software work on a set of exports of a maritime database. But I have no idea how to approach this, as I do not know the coordinate system in use. I am hoping that it is a known (although somewhat obscure) system, and not something homebrewed.
Here's an extract:
4111.099998 898.500000 4110.559998 899.800002 4111.240002 902.910000 4111.840002 901.500000
I have reason to believe that these correspond to:
68.5306667N, 15.0250000E 68.5183333N, 14.9750000E 68.5206667N, 15.0485000E 68.5306667N, 15.0250000E
(somewhere in the Norwegian or Barents Sea)
Anyone able to identfy the system, so that I can work with these coordinates?