* Location: Keyham lat=50.388817 - lon=-4.180374  iy=1213  ix=2023
543600.000000,0.055605,0.000000,0.055605
547200.000000,0.065244,0.000000,0.065244
550800.000000,0.076890,0.000000,0.076890
550800.000000,0.076890,0.000000,0.076890
