The 144 meter long, 16613 dwt tanker Sten Baltic went aground on the Kiel Canal near Fischerhutte, Germany.   The tanker had lost power after a crewman had disengaged the propulsion system disabling the vessel of its power or steering.   The tanker was able to restore power a short time later and proceeded to refloat itself.   The Sten Baltic then proceeded to Brunsbüttel where it berthed to be inspected for any damage.   The vessel was allowed to continue on its voyage to Amsterdam from Ventspils with its cargo of diesel fuel.   No reports of injuries, damage or pollution being released.