"vel[1] v time
0.0000000000000	0.0000000000000
0.3515742187500	-0.0186421184588
0.7031484375000	-0.0198271727814
1.0547226562500	-0.0193109896626
1.4062968750000	-0.0183017792626
1.7578710937500	-0.0179517326963
2.1094453125000	-0.0214262595729
2.4610195312500	-0.0248196266982