"vel[1] v time
0.0000000000000	0.0000000000000
0.3515742187500	0.0007551190261
0.7031484375000	0.0009755884962
1.0547226562500	0.0011928087764
1.4062968750000	0.0014336942674
1.7578710937500	0.0017037808670
2.1094453125000	0.0019871271179
2.4610195312500	0.0022780952848