area  t s0  s         k log_area
  100 36 35 33 0.0016345  2.00000
  137 35 26 25 0.0011206  2.13672
 1834 83 23 21 0.0010960  3.26340
 2600 38 41 40 0.0006498  3.41497
12950 44 39 39 0.0000000  4.11227
23051 55 49 49 0.0000000  4.36269