Tokyo Skytree is a broadcasting and observation tower in Japan that is currently the tallest tower in the world. There are two observatories, with observation decks, on different levels of the tower. From a point 1,280 feet from the base of the tower, the angle of elevation of the lower observatory is 42°, and the angle of elevation of the higher observatory is 49°. Estimate, to the nearest foot, the height of the section of the tower between the two observatories.