{
"lat":["51.48 N"],
"lon":["-0.46 W"],
"elevation":[27.31],
"z":[37.31,54.59,121.27,212.59,329.77,478.59,669.21,903.60,1160.13,1421.99,1691.02,1967.75,2377.72,2916.63,3455.35,3994.51,4534.30,5074.79,5615.81,6156.71,6697.16,7238.01,7779.13,8318.94,8856.67,9392.13,9925.07,10455.80,10985.23,11514.56,12046.00,12582.86,13125.77,13672.29,14223.33,14779.98,15339.10,15898.31,16457.48,17016.09,17573.37,18129.47,18685.08,19240.70,19796.67],
"u":[-0.27,-0.34, 0.70, 2.82, 6.68, 9.11,10.77,12.38,13.36,13.40,13.08,12.92,13.03,13.81,15.02,16.56,18.24,20.36,22.59,22.63,17.23,12.74,12.13,12.41,12.52,11.78,10.65, 9.74,12.60,15.73,17.03,16.85,16.28,16.06,16.54,17.12,17.58,17.87,17.13,16.52,16.70,17.68,19.33,21.47,23.37],
"v":[ 2.63, 3.09, 6.61, 9.80, 9.67, 8.25, 8.17, 9.30,10.51,11.48,12.34,13.08,13.48,13.16,12.13,10.76, 9.41, 6.92, 2.27,-2.76,-4.28,-4.27,-3.49,-2.60,-2.13,-3.64,-5.06,-9.12,-11.31,-13.71,-15.74,-15.47,-14.00,-11.58,-10.27,-10.61,-11.15,-11.83,-13.58,-15.78,-17.47,-18.38,-19.00,-19.95,-21.29],
}