datetime: 25-Apr-2024 11:49:12
1 1.600500e-01 1.111500e-01
7.840000e-02 1 1.850000e-01
5.475000e-02 2.000000e-01 1

mean velocity (unclean): 1.682408e+02 
mean velocity (clean): 1.708276e+02