Now that we have GPS, digital auto positioning, providing extremely accurrately placement of Oil Drill Rigs and dynamically positioning of ship mounted drill operations....I suggest it is possible t to position such a vessel over the spot within a meter ro two accuracy and maintain that position.
That gets us back to the original question.
If the RAF and USAF had GPS as t hey do today....WWII would have had a much different Strategic Bombing Campaign.
The Tirpitz would have gone down in a single mission, buildings would be targeted rather than whole cities, but that was not the case back then....but it is today.