USS Nimitz UFO incident

On November 14, 2004, fighter pilot Commander David Fravor of the USS Nimitz Carrier Strike Group investigated radar indications of a possible target off the coast of southern California. Fravor said the operator had told him that the USS Princeton (CG-59), part of the strike group, had been tracking unusual aircraft for two weeks prior to the incident. The aircraft would appear at 80,000ft before descending rapidly toward the sea, and stopping at 20,000ft and hovering. Fravor reported that he saw an object, white and oval, hovering above an ocean disturbance. He estimated that the object was about forty feet long. A second wave of fighters, including pilot Lieutenant Commander Chad Underwood, took off from Nimitz to investigate. Unlike Fravor, Underwood's fighter was equipped with an advanced infrared camera (FLIR). Underwood recorded the FLIR video, and coined the description "Tic Tac" to describe the infrared image, but did not himself see any unusual object.

https://en.wikipedia.org/wiki/USS_Nimitz_UFO_incident