{
"lat":["51.48 N"],
"lon":["-0.46 W"],
"elevation":[27.31],
"z":[37.31,54.20,119.78,209.27,323.37,466.91,649.20,872.21,1115.87,1364.37,1619.51,1882.15,2271.28,2783.28,3296.92,3813.34,4332.73,4855.09,5380.14,5907.13,6434.50,6961.16,7487.32,8013.74,8541.45,9071.47,9604.35,10140.18,10679.71,11225.99,11784.85,12361.11,12951.00,13545.13,14138.88,14731.33,15322.14,15911.39,16498.61,17083.21,17664.03,18240.41,18813.01,19382.63,19949.88],
"u":[-1.40,-1.41,-2.82,-5.17,-7.53,-9.30,-10.04,-9.92,-10.23,-10.48,-9.52,-7.10,-5.24,-5.58,-7.75,-9.60,-13.35,-16.59,-19.54,-21.70,-21.88,-21.64,-21.29,-20.71,-20.00,-19.19,-18.24,-16.92,-14.55,-11.24,-10.21,-8.53,-6.98,-4.51,-2.39,-2.06,-2.05, 0.47, 1.81, 2.68, 3.54, 3.83, 3.81, 3.70, 3.65],
"v":[-4.06,-4.17,-5.99,-7.71,-7.90,-7.64,-7.56,-6.09,-4.74,-5.16,-5.45,-5.00,-4.66,-6.92,-10.29,-13.06,-16.58,-19.37,-20.79,-21.90,-22.72,-23.27,-23.46,-23.20,-22.67,-22.33,-22.26,-21.87,-20.55,-19.54,-18.45,-16.89,-15.49,-13.22,-11.72,-11.81,-10.48,-9.35,-9.32,-8.63,-8.45,-9.13,-10.25,-11.27,-11.99],
}