latitude reduced regular latitude
number points points
------- ------- ------- ----------
1 18 320 89.141519
2 25 320 88.029429
3 36 320 86.910771
4 40 320 85.790629
5 45 320 84.669924
6 54 320 83.548947
7 60 320 82.427818
8 64 320 81.306595
9 72 320 80.185310
10 72 320 79.063982
11 80 320 77.942624
12 90 320 76.821243
13 96 320 75.699844
14 100 320 74.578432
15 108 320 73.457008
16 120 320 72.335576
17 120 320 71.214136
18 128 320 70.092690
19 135 320 68.971240
20 144 320 67.849784
21 144 320 66.728326
22 150 320 65.606864
23 160 320 64.485399
24 160 320 63.363932
25 180 320 62.242462
26 180 320 61.120991
27 180 320 59.999518
28 192 320 58.878044
29 192 320 57.756569
30 200 320 56.635092
31 200 320 55.513614
32 216 320 54.392135
33 216 320 53.270655
34 216 320 52.149175
35 225 320 51.027694
36 225 320 49.906212
37 240 320 48.784729
38 240 320 47.663246
39 240 320 46.541763
40 256 320 45.420279
41 256 320 44.298794
42 256 320 43.177309
43 256 320 42.055824
44 288 320 40.934338
45 288 320 39.812852
46 288 320 38.691366
47 288 320 37.569880
48 288 320 36.448393
49 288 320 35.326906
50 288 320 34.205418
51 288 320 33.083931
52 288 320 31.962443
53 300 320 30.840955
54 300 320 29.719467
55 300 320 28.597979
56 300 320 27.476491
57 320 320 26.355002
58 320 320 25.233514
59 320 320 24.112025
60 320 320 22.990536
61 320 320 21.869047
62 320 320 20.747558
63 320 320 19.626069
64 320 320 18.504580
65 320 320 17.383091
66 320 320 16.261601
67 320 320 15.140112
68 320 320 14.018622
69 320 320 12.897133
70 320 320 11.775643
71 320 320 10.654153
72 320 320 9.532664
73 320 320 8.411174
74 320 320 7.289684
75 320 320 6.168194
76 320 320 5.046704
77 320 320 3.925215
78 320 320 2.803725
79 320 320 1.682235
80 320 320 0.560745
81 320 320 -0.560745
82 320 320 -1.682235
83 320 320 -2.803725
84 320 320 -3.925215
85 320 320 -5.046704
86 320 320 -6.168194
87 320 320 -7.289684
88 320 320 -8.411174
89 320 320 -9.532664
90 320 320 -10.654153
91 320 320 -11.775643
92 320 320 -12.897133
93 320 320 -14.018622
94 320 320 -15.140112
95 320 320 -16.261601
96 320 320 -17.383091
97 320 320 -18.504580
98 320 320 -19.626069
99 320 320 -20.747558
100 320 320 -21.869047
101 320 320 -22.990536
102 320 320 -24.112025
103 320 320 -25.233514
104 320 320 -26.355002
105 300 320 -27.476491
106 300 320 -28.597979
107 300 320 -29.719467
108 300 320 -30.840955
109 288 320 -31.962443
110 288 320 -33.083931
111 288 320 -34.205418
112 288 320 -35.326906
113 288 320 -36.448393 114 288 320 -37.569880
115 288 320 -38.691366
116 288 320 -39.812852
117 288 320 -40.934338
118 256 320 -42.055824
119 256 320 -43.177309
120 256 320 -44.298794
121 256 320 -45.420279
122 240 320 -46.541763
123 240 320 -47.663246
124 240 320 -48.784729
125 225 320 -49.906212
126 225 320 -51.027694
127 216 320 -52.149175
128 216 320 -53.270655
129 216 320 -54.392135
130 200 320 -55.513614
131 200 320 -56.635092
132 192 320 -57.756569
133 192 320 -58.878044
134 180 320 -59.999518
135 180 320 -61.120991
136 180 320 -62.242462
137 160 320 -63.363932
138 160 320 -64.485399
139 150 320 -65.606864
140 144 320 -66.728326
141 144 320 -67.849784
142 135 320 -68.971240
143 128 320 -70.092690
144 120 320 -71.214136
145 120 320 -72.335576
146 108 320 -73.457008
147 100 320 -74.578432
148 96 320 -75.699844
149 90 320 -76.821243
150 80 320 -77.942624
151 72 320 -79.063982
152 72 320 -80.185310
153 64 320 -81.306595
154 60 320 -82.427818
155 54 320 -83.548947
156 45 320 -84.669924
157 40 320 -85.790629
158 36 320 -86.910771
159 25 320 -88.029429
160 18 320 -89.141519