Not at all, depends on the mission. In fact you can spot yesterday's location of the ship right now on flightradar.
It was patrolling ~100km below Cyprus's main southern city.
Move the timeline to yesterday, find a non-Boeing military plane in that zone, enable flight traces and keep trying planes until you see an ovoidal pattern circling around "nothing"... but that nothingness moves over time.m; that's the ship.