Table 1 Month conversion of circular distribution method
Month | Days of each month (days) | Mid-point days (days) | Median angle (degree) | Median angle (radian) |
|---|---|---|---|---|
1 | 1–31 | 15.5 | 15.288 | 0.267 |
2 | 32–59 | 45.0 | 44.384 | 0.775 |
3 | 60–90 | 74.5 | 73.479 | 1.283 |
4 | 91–120 | 105.0 | 103.562 | 1.808 |
5 | 121–151 | 135.5 | 133.644 | 2.333 |
6 | 152–181 | 166.0 | 163.726 | 2.857 |
7 | 182–212 | 196.5 | 193.808 | 3.383 |
8 | 213–243 | 227.5 | 224.383 | 3.916 |
9 | 244–273 | 258.0 | 254.465 | 4.441 |
10 | 274–304 | 288.5 | 284.548 | 4.966 |
11 | 305–334 | 319.0 | 314.630 | 5.491 |
12 | 335–365 | 349.5 | 344.712 | 6.016 |