"gxy v time
0.0000000000000	0.0000000000000
0.3515742187500	-0.0000003877769
0.7031484375000	-0.0000013782265
1.0547226562500	-0.0000046125409
1.4062968750000	-0.0000103549742
1.7578710937500	-0.0000176016996
2.1094453125000	-0.0000254055247
2.4610195312500	-0.0000319006244