The plan is computed from 34 scanning positions on and around the hill the Winter Station is situated on. The plan covers 220 x 212 meters at a resolution of 64 pixels per meter. The corrdinates are: -112.000000, 108.000000, 231.180932 (top left corner) 108.000000, 108.000000, 231.180932 (top right corner) -112.000000, -104.000000, 231.180932 (bottom left corner) 108.000000, -104.000000, 231.180932 (bottom right corner).