Statistics of sunspot activity
August, 2004
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 | 31 | Average | % |
| W | 42.33 | 40.00 | 48.50 | 62.50 | 31.33 | 46.00 | 73.50 | 67.00 | 80.25 | 92.25 | 113.50 | 124.50 | 101.75 | 105.00 | 94.00 | 67.67 | 52.75 | 54.00 | 56.00 | 81.50 | 88.75 | 94.25 | 95.33 | 53.00 | 54.50 | 38.75 | 31.25 | 30.50 | 23.00 | 24.00 | 15.60 | 63.98 | 100 |
| Wn | 20.67 | 15.75 | 14.50 | 12.50 | 0.00 | 5.50 | 11.25 | 11.25 | 17.00 | 23.00 | 23.50 | 25.00 | 33.25 | 23.33 | 19.67 | 15.33 | 21.00 | 39.00 | 53.00 | 66.50 | 60.50 | 64.25 | 68.67 | 26.00 | 34.75 | 21.00 | 20.00 | 19.50 | 15.67 | 20.33 | 15.60 | 26.36 | 41.21 |
| Ws | 21.67 | 24.25 | 34.00 | 50.00 | 31.33 | 40.50 | 62.25 | 55.75 | 63.25 | 69.25 | 90.00 | 99.50 | 68.50 | 81.67 | 74.33 | 52.33 | 31.75 | 15.00 | 3.00 | 15.00 | 28.25 | 30.00 | 26.67 | 27.00 | 19.75 | 17.75 | 11.25 | 11.00 | 7.33 | 3.67 | 0.00 | 37.61 | 58.79 |
| n | 2.33 | 2.00 | 2.00 | 2.50 | 1.00 | 2.50 | 4.00 | 3.50 | 3.75 | 4.50 | 4.25 | 4.25 | 4.50 | 4.00 | 3.67 | 3.00 | 2.25 | 3.00 | 3.00 | 4.50 | 4.25 | 4.75 | 5.33 | 3.00 | 3.00 | 2.25 | 2.25 | 2.50 | 2.00 | 1.67 | 1.40 | 3.13 | 100 |
| A | 0.33 | 0.00 | 0.00 | 0.75 | 0.00 | 0.25 | 0.00 | 0.50 | 0.25 | 0.25 | 0.25 | 0.00 | 0.25 | 0.00 | 0.00 | 0.33 | 0.25 | 0.00 | 0.00 | 0.50 | 0.00 | 0.25 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.33 | 0.67 | 0.40 | 0.21 | 6.86 |
| B | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.50 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.50 | 0.75 | 0.25 | 0.25 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 5.42 |
| C | 0.33 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.75 | 0.25 | 0.25 | 0.50 | 0.75 | 0.25 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.75 | 1.00 | 0.50 | 0.75 | 0.67 | 1.33 | 1.00 | 0.75 | 0.75 | 0.00 | 0.33 | 0.00 | 0.20 | 0.42 | 13.54 |
| D | 0.00 | 0.50 | 0.50 | 0.25 | 0.00 | 0.00 | 0.25 | 0.50 | 1.25 | 0.25 | 0.25 | 0.75 | 1.00 | 1.00 | 1.00 | 1.00 | 0.75 | 0.75 | 0.50 | 1.75 | 2.50 | 2.00 | 1.00 | 0.67 | 0.75 | 0.50 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 0.66 | 20.98 |
| E | 0.33 | 0.75 | 0.50 | 0.25 | 0.67 | 0.50 | 0.75 | 0.50 | 0.25 | 0.75 | 1.00 | 0.50 | 0.50 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.25 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 8.51 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 1.00 | 1.00 | 1.00 | 1.00 | 0.25 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 6.45 |
| G | 1.33 | 0.75 | 0.50 | 1.00 | 0.33 | 0.25 | 0.00 | 0.50 | 0.25 | 0.25 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 0.50 | 0.75 | 1.00 | 1.67 | 0.67 | 0.75 | 0.25 | 0.75 | 0.50 | 0.00 | 0.00 | 0.00 | 0.42 | 13.42 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 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 | 0.01 | 0.26 |
| I | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.25 | 1.00 | 1.50 | 2.00 | 1.50 | 2.00 | 1.50 | 2.00 | 1.67 | 0.67 | 0.00 | 0.25 | 0.75 | 0.00 | 0.00 | 0.00 | 0.67 | 0.33 | 0.50 | 0.50 | 0.75 | 1.50 | 1.33 | 0.33 | 0.80 | 0.77 | 24.56 |
| x | 0.33 | 0.00 | 0.00 | 1.00 | 0.00 | 0.25 | 0.50 | 0.50 | 0.25 | 0.75 | 0.75 | 0.00 | 0.50 | 0.00 | 0.00 | 0.33 | 0.25 | 0.50 | 0.50 | 1.25 | 0.25 | 0.50 | 1.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.33 | 0.67 | 0.40 | 0.38 | 12.28 |
| r | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.33 | 0.00 | 0.10 | 3.10 |
| s | 1.00 | 0.50 | 0.50 | 0.75 | 0.33 | 0.75 | 1.50 | 1.00 | 0.50 | 1.25 | 1.50 | 1.75 | 1.50 | 2.00 | 1.33 | 0.33 | 0.00 | 0.00 | 0.50 | 0.50 | 0.50 | 1.25 | 2.33 | 1.33 | 1.75 | 0.50 | 1.25 | 1.50 | 1.33 | 0.33 | 0.40 | 0.97 | 30.94 |
| a | 1.00 | 1.50 | 1.50 | 0.50 | 0.67 | 1.25 | 1.75 | 1.75 | 2.75 | 1.25 | 0.50 | 1.25 | 1.50 | 0.67 | 0.33 | 0.00 | 0.25 | 1.25 | 1.00 | 1.75 | 2.50 | 2.00 | 0.33 | 1.00 | 1.00 | 1.50 | 1.00 | 0.00 | 0.33 | 0.33 | 0.60 | 1.07 | 34.07 |
| 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 | 0.00 | 0.33 | 1.00 | 0.33 | 0.25 | 0.25 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 3.35 |
| k | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.25 | 0.25 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.67 | 1.50 | 0.75 | 0.75 | 0.75 | 1.00 | 1.00 | 1.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.51 | 16.25 |
| x | 0.33 | 0.00 | 0.00 | 0.75 | 0.00 | 1.50 | 1.25 | 1.50 | 1.75 | 2.25 | 1.75 | 2.00 | 1.75 | 2.00 | 1.67 | 1.00 | 0.25 | 0.25 | 0.75 | 0.50 | 0.00 | 0.25 | 1.00 | 0.33 | 0.50 | 0.75 | 0.75 | 2.00 | 1.67 | 1.00 | 1.20 | 0.99 | 31.68 |
| o | 1.67 | 1.00 | 1.50 | 1.50 | 0.33 | 0.25 | 1.50 | 1.00 | 1.00 | 1.50 | 1.50 | 1.25 | 2.00 | 1.00 | 1.00 | 1.00 | 0.75 | 2.25 | 1.75 | 3.25 | 3.25 | 3.50 | 4.33 | 2.67 | 2.50 | 1.50 | 1.50 | 0.50 | 0.33 | 0.67 | 0.20 | 1.55 | 49.48 |
| i | 0.33 | 0.75 | 0.25 | 0.25 | 0.67 | 0.50 | 1.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.25 | 0.25 | 0.50 | 0.75 | 0.50 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 8.08 |
| c | 0.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.25 | 0.25 | 0.00 | 1.00 | 0.75 | 1.00 | 1.00 | 0.75 | 1.00 | 1.00 | 0.67 | 1.00 | 0.25 | 0.00 | 0.00 | 0.50 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.34 | 10.75 |
| CV | 42.33 | 47.00 | 40.25 | 34.75 | 24.00 | 44.25 | 64.75 | 57.25 | 66.00 | 80.75 | 80.75 | 96.25 | 89.75 | 107.00 | 119.67 | 103.00 | 96.00 | 67.50 | 61.00 | 84.25 | 107.75 | 114.50 | 101.67 | 62.00 | 55.00 | 26.50 | 30.75 | 25.50 | 16.33 | 16.67 | 8.80 | 63.61 | 100 |
| CVn | 24.33 | 25.50 | 15.00 | 9.00 | 0.00 | 4.25 | 7.75 | 8.50 | 12.00 | 16.50 | 17.50 | 20.50 | 39.00 | 40.00 | 51.67 | 43.00 | 47.00 | 47.75 | 60.50 | 78.25 | 86.75 | 89.25 | 77.67 | 44.00 | 36.50 | 11.50 | 21.25 | 15.50 | 9.67 | 16.33 | 8.80 | 31.78 | 49.96 |
| CVs | 18.00 | 21.50 | 25.25 | 25.75 | 24.00 | 40.00 | 57.00 | 48.75 | 54.00 | 64.25 | 63.25 | 75.75 | 50.75 | 67.00 | 68.00 | 60.00 | 49.00 | 19.75 | 0.50 | 6.00 | 21.00 | 25.25 | 24.00 | 18.00 | 18.50 | 15.00 | 9.50 | 10.00 | 6.67 | 0.33 | 0.00 | 31.83 | 50.04 |
|
