on tuesday, 8th of april at 10:17 p.m. perth time. i'm now happy to take your questions, but before i do that i would refer you to the diagram there which shows you where all of the detections were made. i would also highlight to you the satellite hand shake calculation number seven. that was the hand shake, which was a partial ping. where the experts in kuala lumpur access the plane's engines might have flamed out and it's probably significant in terms of the end of power flight. >> what does your data show? du it give you any indication of how far they have traveled? >> we have no idea at this