latitude reduced regular latitude
number points points
------- ------- ------- ----------
1 18 640 89.570090
2 25 640 89.013176
3 36 640 88.452974
4 40 640 87.892028
5 45 640 87.330801
6 50 640 86.769438
7 60 640 86.207998
8 64 640 85.646511
9 72 640 85.084993
10 72 640 84.523454
11 80 640 83.961900
12 90 640 83.400334
13 90 640 82.838759
14 96 640 82.277177
15 108 640 81.715590
16 120 640 81.153998
17 120 640 80.592403
18 125 640 80.030805
19 128 640 79.469204
20 135 640 78.907601
21 144 640 78.345996
22 150 640 77.784389
23 160 640 77.222782
24 160 640 76.661172
25 180 640 76.099562
26 180 640 75.537951
27 180 640 74.976339
28 192 640 74.414727
29 192 640 73.853113
30 200 640 73.291499
31 216 640 72.729885
32 216 640 72.168270
33 225 640 71.606655
34 225 640 71.045039
35 240 640 70.483423
36 240 640 69.921806
37 243 640 69.360189
38 250 640 68.798572
39 256 640 68.236955
40 270 640 67.675337
41 270 640 67.113719
42 288 640 66.552101
43 288 640 65.990483
44 288 640 65.428865
45 300 640 64.867246
46 300 640 64.305627
47 320 640 63.744008
48 320 640 63.182389
49 320 640 62.620770
50 320 640 62.059151
51 324 640 61.497532
52 360 640 60.935912
53 360 640 60.374292
54 360 640 59.812673
55 360 640 59.251053
56 360 640 58.689433
57 360 640 58.127813
58 375 640 57.566193
59 375 640 57.004573
60 375 640 56.442953
61 384 640 55.881332
62 384 640 55.319712
63 400 640 54.758092
64 400 640 54.196471
65 400 640 53.634851
66 405 640 53.073230
67 432 640 52.511610
68 432 640 51.949989
69 432 640 51.388368
70 432 640 50.826748
71 432 640 50.265127
72 450 640 49.703506
73 450 640 49.141885
74 450 640 48.580264
75 450 640 48.018643
76 480 640 47.457022
77 480 640 46.895401
78 480 640 46.333780
79 480 640 45.772159
80 480 640 45.210538
81 480 640 44.648917
82 480 640 44.087296
83 500 640 43.525675
84 500 640 42.964054
85 500 640 42.402432
86 500 640 41.840811
87 500 640 41.279190
88 512 640 40.717569
89 512 640 40.155947
90 540 640 39.594326
91 540 640 39.032705
92 540 640 38.471083
93 540 640 37.909462
94 540 640 37.347841
95 540 640 36.786219
96 540 640 36.224598
97 540 640 35.662976
98 576 640 35.101355
99 576 640 34.539734
100 576 640 33.978112
101 576 640 33.416491
102 576 640 32.854869
103 576 640 32.293248
104 576 640 31.731626
105 576 640 31.170005
106 576 640 30.608383
107 576 640 30.046762
108 600 640 29.485140
109 600 640 28.923518
110 600 640 28.361897
111 600 640 27.800275
112 600 640 27.238654
113 600 640 26.677032
114 600 640 26.115410
115 600 640 25.553789
116 600 640 24.992167
117 640 640 24.430546
118 640 640 23.868924
119 640 640 23.307302
120 640 640 22.745681
121 640 640 22.184059
122 640 640 21.622437
123 640 640 21.060816
124 640 640 20.499194
125 640 640 19.937572
126 640 640 19.375951
127 640 640 18.814329
128 640 640 18.252707
129 640 640 17.691085
130 640 640 17.129464
131 640 640 16.567842
132 640 640 16.006220
133 640 640 15.444599
134 640 640 14.882977
135 640 640 14.321355
136 640 640 13.759733
137 640 640 13.198112
138 640 640 12.636490
139 640 640 12.074868
140 640 640 11.513246
141 640 640 10.951625
142 640 640 10.390003
143 640 640 9.828381
144 640 640 9.266759
145 640 640 8.705138
146 640 640 8.143516
147 640 640 7.581894
148 640 640 7.020272
149 640 640 6.458650
150 640 640 5.897029
151 640 640 5.335407
152 640 640 4.773785
153 640 640 4.212163
154 640 640 3.650542
155 640 640 3.088920
156 640 640 2.527298
157 640 640 1.965676
158 640 640 1.404054
159 640 640 0.842433
160 640 640 0.280811
161 640 640 -0.280811
162 640 640 -0.842433
163 640 640 -1.404054
164 640 640 -1.965676
165 640 640 -2.527298
166 640 640 -3.088920
167 640 640 -3.650542
168 640 640 -4.212163
169 640 640 -4.773785
170 640 640 -5.335407
171 640 640 -5.897029
172 640 640 -6.458650
173 640 640 -7.020272
174 640 640 -7.581894
175 640 640 -8.143516
176 640 640 -8.705138
177 640 640 -9.266759
178 640 640 -9.828381
179 640 640 -10.390003
180 640 640 -10.951625
181 640 640 -11.513246
182 640 640 -12.074868
183 640 640 -12.636490
184 640 640 -13.198112
185 640 640 -13.759733
186 640 640 -14.321355
187 640 640 -14.882977
188 640 640 -15.444599
189 640 640 -16.006220
190 640 640 -16.567842
191 640 640 -17.129464
192 640 640 -17.691085
193 640 640 -18.252707
194 640 640 -18.814329
195 640 640 -19.375951
196 640 640 -19.937572
197 640 640 -20.499194
198 640 640 -21.060816
199 640 640 -21.622437
200 640 640 -22.184059
201 640 640 -22.745681
202 640 640 -23.307302
203 640 640 -23.868924
204 640 640 -24.430546
205 600 640 -24.992167
206 600 640 -25.553789
207 600 640 -26.115410
208 600 640 -26.677032
209 600 640 -27.238654
210 600 640 -27.800275
211 600 640 -28.361897
212 600 640 -28.923518
213 600 640 -29.485140
214 576 640 -30.046762
215 576 640 -30.608383
216 576 640 -31.170005
217 576 640 -31.731626
218 576 640 -32.293248
219 576 640 -32.854869
220 576 640 -33.416491
221 576 640 -33.978112
222 576 640 -34.539734
223 576 640 -35.101355
224 540 640 -35.662976
225 540 640 -36.224598
226 540 640 -36.786219
227 540 640 -37.347841
228 540 640 -37.909462
229 540 640 -38.471083
230 540 640 -39.032705
231 540 640 -39.594326
232 512 640 -40.155947
233 512 640 -40.717569
234 500 640 -41.279190
235 500 640 -41.840811
236 500 640 -42.402432
237 500 640 -42.964054
238 500 640 -43.525675
239 480 640 -44.087296
240 480 640 -44.648917
241 480 640 -45.210538
242 480 640 -45.772159
243 480 640 -46.333780
244 480 640 -46.895401
245 480 640 -47.457022
246 450 640 -48.018643
247 450 640 -48.580264
248 450 640 -49.141885
249 450 640 -49.703506
250 432 640 -50.265127
251 432 640 -50.826748
252 432 640 -51.388368
253 432 640 -51.949989
254 432 640 -52.511610
255 405 640 -53.073230
256 400 640 -53.634851
257 400 640 -54.196471
258 400 640 -54.758092
259 384 640 -55.319712
260 384 640 -55.881332
261 375 640 -56.442953
262 375 640 -57.004573
263 375 640 -57.566193
264 360 640 -58.127813
265 360 640 -58.689433
266 360 640 -59.251053
267 360 640 -59.812673
268 360 640 -60.374292
269 360 640 -60.935912
270 324 640 -61.497532
271 320 640 -62.059151
272 320 640 -62.620770
273 320 640 -63.182389
274 320 640 -63.744008
275 300 640 -64.305627
276 300 640 -64.867246
277 288 640 -65.428865
278 288 640 -65.990483
279 288 640 -66.552101
280 270 640 -67.113719
281 270 640 -67.675337
282 256 640 -68.236955
283 250 640 -68.798572
284 243 640 -69.360189
285 240 640 -69.921806
286 240 640 -70.483423
287 225 640 -71.045039
288 225 640 -71.606655
289 216 640 -72.168270
290 216 640 -72.729885
291 200 640 -73.291499
292 192 640 -73.853113
293 192 640 -74.414727
294 180 640 -74.976339
295 180 640 -75.537951
296 180 640 -76.099562
297 160 640 -76.661172
298 160 640 -77.222782
299 150 640 -77.784389
300 144 640 -78.345996
301 135 640 -78.907601
302 128 640 -79.469204
303 125 640 -80.030805
304 120 640 -80.592403
305 120 640 -81.153998
306 108 640 -81.715590
307 96 640 -82.277177
308 90 640 -82.838759
309 90 640 -83.400334
310 80 640 -83.961900
311 72 640 -84.523454
312 72 640 -85.084993
313 64 640 -85.646511
314 60 640 -86.207998
315 50 640 -86.769438
316 45 640 -87.330801
317 40 640 -87.892028
318 36 640 -88.452974
319 25 640 -89.013176
320 18 640 -89.570090