Did not notice that it was an E model. With the Pulse Doppler APG-63 as in some of the C models it would have been possible to lose track of something the size of Exxon Valdez, should it be in the notch with no relative closure. Hence my comment.
Dominator,
With 41 years experience in FJ surly you to have experienced more then one incident where you did not se the other aircraft before it was way to close for comfort? I certainly have, both in training and in combat, and as always its a combination of pure work by the controlling agency and lack og SA/poor system management/visual lookout by the crew. It did happen back in the day and it still does happen today.