Table 1.
The detailed spatial distribution of NBSL including NBSLs with less than 5 eyes enclosed by brackets, which were excluded from Gaussian process regression due to possible reliability issues.
| Horizontal | 7 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Vertical | |||||||||||||
| 3 | 0 | 0 | 0 | 0 | 0 | 0 | [1] | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | 0 | 0 | 0 | 0 | 7 | [3] | 6 | [2] | [2] | 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | [1] | 7 | 47 | 61 | 78 | 34 | 13 | [2] | [1] | 0 | 0 |
| 0 | 0 | 0 | 13 | 74 | 183 | 259 | 243 | 124 | 58 | 8 | [3] | 0 | [1] |
| −1 | 0 | [1] | 21 | 196 | 625 | 1021 | NA | 447 | 178 | 31 | [4] | [1] | 0 |
| −2 | [1] | [2] | 45 | 241 | 703 | 909 | 797 | 376 | 186 | 24 | 5 | 0 | 0 |
| −3 | 0 | 0 | 5 | 103 | 667 | 938 | 843 | 415 | 154 | 25 | [3] | 0 | 0 |
| −4 | 0 | [1] | 5 | 25 | 150 | 321 | 274 | 125 | 60 | [3] | [2] | 0 | 0 |
| −5 | 0 | 0 | [1] | [2] | 31 | 75 | 82 | 51 | 15 | [2] | [1] | 0 | 0 |
| −6 | 0 | 0 | 0 | 0 | 0 | [4] | 10 | 8 | [3] | 0 | 0 | 0 | 0 |
The NBSL at (15°, −1°) is denoted as missing value since all NBSL of (15°, −1°) is excluded due to the reason we described in Method section.