Hi Tony,
ship is scheduled Brunsbuettel locks about 10.00 hrs., when there is not much delay you will pass my position 2 hrs. later.
Because of the sun photos until 14.00 hrs. to be made from starboard, after 1400 hrs. from port side.
Or you position yourself like Winslet/DiCaprio in movie TITANIC.
Rgds.
Juergen