"phi minimum v time
0.000000           0.0000304406955
0.300000           0.0001465972066
0.600000           0.0001143216163
0.900000           0.0000964170217
1.200000          -0.0013687670109
1.500000          -0.0114672988868
1.800000          -0.0351488213380
2.100000          -0.0715040334407
2.400000          -0.1142636448684
2.700000          -0.1591448955696
3.000000          -0.2025646937270