Seems to have pulled a U-Turn over the Atlantic and is traveling awfully slow for this flight level.
And why is FlightAware still showing ‘Estimated’ but FlightRadar24 seems to be live.
FlightAware shows estimated if we don’t have an actual position in the last 1 minute, which is common over the ocean. We project from the last known position (the green line) to put the plane where we think it is now in grey with a clearly defined uncertainty ring.