 At this time, "Ehime Maru" was about or away from the submarine and heading in her direction.Although sonar data began to more accurately depict "Ehime Maru" true range and bearing at this point, this was not evident to the sonar operators.Lieutenant, Junior Grade Michael J. Coen, the officer of the deck, conducted an initial low magnification periscope search of the area and sighted no nearby ships.