Count Florida,

Unfortunately, you've got it backwards. The ship at your coordinates may be the Silver Shadow (I'm not familiar with it), but it is the downriver ship that is the Voyager (at 59°55'49.98"N, 30°16'24.46"E). You can actually discern the "Regent" on the funnel...ALL the deck and side details match...and it is bigger that the other ship (as it would have to be if the other ship is the Shadow). The picture I referenced (PICT2868) wasn't taken at the same time (actually, not within years) as the overhead imagery (note the Radisson harp on the funnel on PICT2868). The overhead imagery is dated as 8 Aug 2007 which may or may not be precise, but should be close.

30+ years of photo interpretation stands behind my observations.