Statistics of sunspot activity
September, 2015
Visual indices of solar activity by National Geophysical Data Center
| Date | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | Average | % |
| W | 64.33 | 45.75 | 32.50 | 39.00 | 32.75 | 41.75 | 40.00 | 41.75 | 47.33 | 46.75 | 80.00 | 83.67 | 74.50 | 53.25 | 65.25 | 83.00 | 76.25 | 63.75 | 61.67 | 58.25 | 56.00 | 85.25 | 91.75 | 127.67 | 155.75 | 149.00 | 138.75 | 118.67 | 114.33 | 79.67 | 74.94 | 100 |
| Wn | 60.33 | 45.75 | 20.25 | 25.00 | 24.25 | 23.00 | 26.33 | 25.75 | 23.67 | 19.75 | 11.00 | 22.00 | 16.50 | 0.00 | 14.50 | 18.00 | 21.25 | 18.75 | 17.33 | 28.00 | 27.67 | 44.75 | 42.75 | 62.33 | 84.00 | 77.75 | 75.50 | 54.00 | 50.67 | 39.00 | 33.99 | 45.36 |
| Ws | 4.00 | 0.00 | 12.25 | 14.00 | 8.50 | 18.75 | 13.67 | 16.00 | 23.67 | 27.00 | 69.00 | 61.67 | 58.00 | 53.25 | 50.75 | 65.00 | 55.00 | 45.00 | 44.33 | 30.25 | 28.33 | 40.50 | 49.00 | 65.33 | 71.75 | 71.25 | 63.25 | 64.67 | 63.67 | 40.67 | 40.95 | 54.64 |
| n | 4.33 | 3.25 | 2.50 | 3.00 | 2.75 | 3.25 | 3.33 | 3.25 | 3.67 | 3.50 | 5.00 | 5.67 | 5.25 | 3.00 | 4.00 | 4.75 | 3.25 | 3.00 | 3.00 | 4.00 | 3.67 | 5.50 | 5.25 | 7.00 | 7.75 | 7.00 | 7.50 | 6.00 | 4.33 | 3.67 | 4.38 | 100 |
| A | 1.33 | 1.00 | 0.75 | 0.00 | 0.75 | 0.00 | 0.33 | 0.50 | 0.67 | 1.50 | 0.33 | 1.00 | 2.25 | 0.00 | 0.00 | 0.75 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.75 | 1.33 | 0.25 | 0.00 | 2.00 | 0.67 | 0.67 | 0.33 | 0.61 | 14.01 |
| B | 1.67 | 1.25 | 0.25 | 1.00 | 0.75 | 1.00 | 1.00 | 0.25 | 1.00 | 0.25 | 1.33 | 1.33 | 0.25 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 1.00 | 0.25 | 0.00 | 2.25 | 2.00 | 1.25 | 1.33 | 0.33 | 0.00 | 0.69 | 15.73 |
| C | 1.00 | 0.50 | 1.00 | 1.00 | 0.25 | 2.00 | 0.33 | 0.75 | 0.33 | 0.50 | 0.33 | 0.33 | 0.50 | 1.00 | 1.25 | 0.50 | 1.50 | 2.00 | 2.00 | 1.75 | 1.00 | 0.50 | 1.50 | 1.67 | 1.50 | 1.25 | 1.50 | 1.33 | 0.67 | 0.67 | 1.01 | 23.15 |
| D | 0.33 | 0.50 | 0.25 | 0.00 | 0.00 | 0.25 | 0.33 | 0.50 | 0.33 | 0.25 | 2.00 | 1.67 | 1.50 | 0.00 | 0.25 | 1.50 | 0.25 | 0.00 | 0.00 | 0.75 | 1.00 | 0.75 | 0.75 | 1.33 | 1.50 | 1.25 | 0.75 | 0.67 | 1.00 | 1.33 | 0.70 | 15.98 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 1.00 | 1.00 | 1.00 | 0.75 | 0.67 | 0.50 | 0.75 | 1.00 | 0.50 | 1.00 | 1.00 | 1.00 | 0.00 | 0.00 | 0.36 | 8.12 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.33 | 0.67 | 0.67 | 0.06 | 1.46 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.33 | 0.75 | 0.25 | 0.67 | 0.75 | 0.75 | 1.00 | 0.33 | 0.67 | 0.33 | 0.26 | 5.96 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 1.00 | 0.75 | 0.75 | 0.25 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.25 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 3.68 |
| I | 0.00 | 0.00 | 0.25 | 1.00 | 1.00 | 0.00 | 1.33 | 1.25 | 1.33 | 1.00 | 1.00 | 1.33 | 0.00 | 0.00 | 0.50 | 1.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.75 | 0.67 | 1.00 | 0.50 | 0.00 | 0.33 | 0.33 | 0.33 | 0.52 | 11.92 |
| x | 3.00 | 2.25 | 1.00 | 1.00 | 1.50 | 1.00 | 1.33 | 0.75 | 1.67 | 1.75 | 1.67 | 2.33 | 2.50 | 0.00 | 0.25 | 0.75 | 0.25 | 0.00 | 0.00 | 0.00 | 0.67 | 2.00 | 1.00 | 1.33 | 2.50 | 2.00 | 3.25 | 2.00 | 1.00 | 0.33 | 1.30 | 29.74 |
| r | 0.33 | 0.25 | 0.25 | 2.00 | 0.25 | 1.25 | 0.33 | 0.50 | 0.00 | 0.75 | 0.67 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.25 | 0.25 | 0.33 | 0.50 | 1.75 | 1.50 | 0.00 | 0.33 | 0.67 | 0.43 | 9.89 |
| s | 1.00 | 0.25 | 1.25 | 0.00 | 0.50 | 0.25 | 1.33 | 1.50 | 1.00 | 0.75 | 1.00 | 1.67 | 0.25 | 1.00 | 1.25 | 1.50 | 0.75 | 0.50 | 0.00 | 1.00 | 0.00 | 0.75 | 0.75 | 0.67 | 1.25 | 0.00 | 0.75 | 0.67 | 0.00 | 0.67 | 0.74 | 16.93 |
| a | 0.00 | 0.50 | 0.00 | 0.00 | 0.50 | 0.75 | 0.33 | 0.50 | 1.00 | 0.25 | 1.33 | 0.67 | 1.25 | 1.00 | 1.50 | 1.75 | 1.50 | 1.50 | 2.33 | 1.75 | 1.67 | 1.25 | 3.00 | 3.67 | 3.00 | 2.25 | 0.75 | 2.33 | 2.00 | 0.67 | 1.30 | 29.68 |
| h | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.50 | 0.75 | 0.50 | 0.50 | 0.75 | 0.67 | 0.50 | 0.33 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 4.25 |
| k | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 0.50 | 0.50 | 0.00 | 0.25 | 0.25 | 0.25 | 0.00 | 0.50 | 1.00 | 1.25 | 0.25 | 0.67 | 0.50 | 1.00 | 1.25 | 1.00 | 1.00 | 1.33 | 0.42 | 9.51 |
| x | 1.33 | 1.00 | 1.00 | 1.00 | 1.75 | 0.00 | 1.67 | 1.75 | 2.00 | 2.50 | 1.33 | 2.33 | 3.00 | 1.00 | 1.25 | 2.50 | 0.50 | 0.00 | 0.00 | 0.50 | 0.00 | 2.00 | 1.75 | 2.33 | 1.25 | 0.50 | 2.00 | 1.00 | 1.00 | 0.67 | 1.30 | 29.61 |
| o | 2.67 | 2.25 | 1.50 | 2.00 | 1.00 | 3.25 | 1.67 | 1.25 | 1.33 | 1.00 | 2.00 | 2.00 | 1.50 | 1.25 | 2.00 | 1.25 | 1.75 | 1.25 | 1.33 | 2.25 | 2.67 | 3.00 | 2.75 | 2.67 | 4.75 | 4.00 | 3.75 | 2.33 | 1.33 | 1.33 | 2.10 | 48.00 |
| i | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.33 | 0.00 | 1.67 | 1.00 | 0.75 | 0.75 | 0.75 | 0.50 | 0.25 | 1.00 | 0.67 | 0.50 | 0.33 | 0.50 | 0.75 | 1.67 | 1.00 | 1.00 | 1.00 | 1.00 | 0.33 | 0.33 | 0.56 | 12.68 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.50 | 0.75 | 0.75 | 1.00 | 0.75 | 0.67 | 0.00 | 0.00 | 0.33 | 0.75 | 1.50 | 0.75 | 1.67 | 1.67 | 1.33 | 0.43 | 9.70 |
| CV | 22.33 | 17.75 | 19.50 | 11.00 | 12.00 | 19.00 | 22.67 | 29.25 | 25.33 | 17.00 | 65.33 | 74.00 | 80.50 | 72.50 | 75.25 | 86.50 | 74.75 | 80.25 | 70.67 | 94.25 | 94.33 | 90.75 | 66.75 | 118.67 | 104.50 | 120.25 | 111.50 | 111.33 | 99.33 | 103.33 | 66.35 | 100 |
| CVn | 22.00 | 17.75 | 17.25 | 9.00 | 11.25 | 11.75 | 15.00 | 13.25 | 10.67 | 10.00 | 7.00 | 12.00 | 1.50 | 0.00 | 6.25 | 15.00 | 12.50 | 10.00 | 8.33 | 32.50 | 42.00 | 38.75 | 31.25 | 51.67 | 56.50 | 65.00 | 52.50 | 30.67 | 40.33 | 45.33 | 23.23 | 35.01 |
| CVs | 0.33 | 0.00 | 2.25 | 2.00 | 0.75 | 7.25 | 7.67 | 16.00 | 14.67 | 7.00 | 58.33 | 62.00 | 79.00 | 72.50 | 69.00 | 71.50 | 62.25 | 70.25 | 62.33 | 61.75 | 52.33 | 52.00 | 35.50 | 67.00 | 48.00 | 55.25 | 59.00 | 80.67 | 59.00 | 58.00 | 43.12 | 64.99 |
|
