How a carrier group can be mislocated by hundreds of miles

Is it plausible for an opponent to mislocate a carrier group by about three hundred miles?

A large error is plausible because carrier groups manoeuvre, disperse over wide areas, and actively try to conceal their position.

Carrier groups are mobile formations rather than fixed points around one ship. Their escorts can spread across a wide area, and the whole force changes course to complicate surveillance. An estimate one hundred or two hundred miles from the true position would therefore be unsurprising in this assessment. A full three-hundred-mile error is treated more cautiously, though still within the range of a disputed claim. Locating a carrier once does not guarantee a current targeting solution.