E3 seems in the wrong place (related to RNLI headings and reports) I suspect there's an exercise going on and the E3, KC135 and some of the RN further south (Tideforce and others) were doing their own thing.
The E3 seems to be in exactly the right place for optimum use of its radar system. If it is too close the area of interest disappears into the cone of silence - the radar can't see through the fuselage or wings.
Fingers crossed for a successful outcome.