"vel[1] v time
0.0000000000000	0.0000000000000
0.3515742187500	-0.0186476891782
0.7031484375000	-0.0198308670785
1.0547226562500	-0.0193137477459
1.4062968750000	-0.0183045104569
1.7578710937500	-0.0179500536426
2.1094453125000	-0.0214257287902
2.4610195312500	-0.0248200201975