1. A method for providing an estimate of the state of a moving contact using a device for estimating the state of said contact, said method comprising the steps of: inputting into said device information about a location of an observer platform at particular time intervals and information from at least one sensor about a position of a moving contact relative to said observer platform at each of said time intervals; transforming said inputted information into a series of geographical grids with one geographical grid being formed for each reading from said at least one sensor; combining grids corresponding to similar time intervals into a series of consolidated grid representation; and analyzing said series of consolidated grid representations to produce an estimate of the state of said contact at a final point in time where an observation was made.