#        cent     latitude
            0      -81.526
            2     -58.9573
            4     -47.1852
            6     -40.3625
            8      -36.326
           10      -32.863
           12     -29.9143
           14     -27.5906
           16     -25.2099
           18     -22.8626
           20     -20.8155
           22     -20.0327
           24     -18.5209
           26     -17.6553
           28     -16.1786
           30     -15.5147
           32     -14.0541
           34     -13.1378
           36     -11.9515
           38     -11.1115
           40     -9.89876
           42     -9.13723
           44     -8.23003
           46     -7.34251
           48     -6.48692
           50     -5.76825
           52     -5.29785
           54     -4.70515
           56      -4.0516
           58     -3.15231
           60      -2.5052
           62     -1.93375
           64      -1.4393
           66    -0.771173
           68    -0.173471
           70     0.762655
           72      1.54495
           74      1.94913
           76      2.54573
           78      3.21638
           80      3.91283
           82       4.7181
           84      5.47342
           86      6.52305
           88      7.05825
           90      8.10689
           92      9.33627
           94      10.3065
           96      11.1643
           98      13.6431
          100      22.7102