"gxy v time
0.0000000000000	0.0000000000000
0.3515742187500	-0.0000003877781
0.7031484375000	-0.0000014857349
1.0547226562500	-0.0000031557507
1.4062968750000	-0.0000051659477
1.7578710937500	-0.0000071943143
2.1094453125000	-0.0000088356004
2.4610195312500	-0.0000111583120