"gxz v time
0.0000000000000	0.0000000000000
0.3515742187500	-0.0000003877781
0.7031484375000	-0.0000014857514
1.0547226562500	-0.0000031559159
1.4062968750000	-0.0000051666453
1.7578710937500	-0.0000071962779
2.1094453125000	-0.0000088399870
2.4610195312500	-0.0000111584081