"rho v time
0.0000000000000	0.0012799999584
0.3515742187500	0.0012780104111
0.7031484375000	0.0012760088104
1.0547226562500	0.0012740213198
1.4062968750000	0.0012720574737
1.7578710937500	0.0012701019023
2.1094453125000	0.0012682296139
2.4610195312500	0.0012665278152