Statistics of sunspot activity
February, 2011
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 | Average | % |
| W | 22.00 | 21.00 | 39.25 | 30.50 | 18.50 | 29.00 | 19.75 | 48.50 | 53.00 | 35.25 | 55.75 | 66.25 | 85.50 | 82.50 | 95.00 | 60.33 | 54.33 | 93.67 | 79.50 | 71.33 | 51.00 | 35.25 | 19.50 | 23.00 | 16.33 | 45.00 | 46.67 | 48.50 | 48.08 | 100 |
| Wn | 0.00 | 0.00 | 9.50 | 7.00 | 3.25 | 12.67 | 17.00 | 41.00 | 35.40 | 13.50 | 24.25 | 32.00 | 32.00 | 42.75 | 48.50 | 31.67 | 26.33 | 60.33 | 59.50 | 58.00 | 51.00 | 35.25 | 19.50 | 23.00 | 16.33 | 33.00 | 35.00 | 36.00 | 28.70 | 59.71 |
| Ws | 22.00 | 21.00 | 29.75 | 23.50 | 15.25 | 16.33 | 2.75 | 7.50 | 17.60 | 21.75 | 31.50 | 34.25 | 53.50 | 39.75 | 46.50 | 28.67 | 28.00 | 33.33 | 20.00 | 13.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 12.00 | 11.67 | 12.50 | 19.37 | 40.29 |
| n | 1.00 | 1.00 | 2.75 | 2.00 | 1.25 | 2.33 | 1.50 | 3.75 | 3.40 | 2.00 | 4.00 | 4.25 | 4.25 | 4.25 | 4.00 | 3.00 | 2.00 | 3.00 | 3.00 | 2.67 | 2.00 | 2.00 | 1.50 | 2.00 | 1.33 | 3.00 | 3.00 | 3.00 | 2.62 | 100 |
| A | 0.00 | 0.00 | 0.75 | 0.00 | 0.00 | 1.67 | 0.50 | 0.50 | 0.20 | 0.25 | 0.75 | 0.75 | 1.00 | 1.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.33 | 1.00 | 0.40 | 15.29 |
| B | 0.00 | 0.00 | 1.75 | 0.00 | 0.50 | 0.67 | 0.75 | 1.25 | 1.40 | 0.25 | 1.25 | 1.25 | 0.50 | 0.50 | 0.50 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.67 | 0.50 | 0.67 | 0.50 | 0.52 | 19.89 |
| C | 0.00 | 0.00 | 0.00 | 1.50 | 0.25 | 0.00 | 0.00 | 1.00 | 1.00 | 0.75 | 1.50 | 1.00 | 1.00 | 0.25 | 0.00 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.33 | 0.00 | 0.50 | 0.00 | 0.00 | 1.00 | 0.67 | 0.00 | 0.41 | 15.59 |
| D | 1.00 | 1.00 | 0.00 | 0.50 | 0.50 | 0.00 | 0.25 | 0.75 | 0.80 | 0.75 | 0.50 | 0.50 | 1.00 | 1.25 | 1.50 | 1.00 | 0.00 | 1.00 | 1.50 | 1.33 | 0.67 | 1.00 | 1.00 | 0.00 | 0.33 | 0.50 | 0.00 | 0.50 | 0.68 | 26.13 |
| 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 | 0.75 | 1.00 | 1.00 | 1.00 | 2.00 | 1.33 | 1.00 | 1.00 | 1.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.40 | 15.13 |
| 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 | 0.50 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 1.14 |
| G | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.04 | 1.59 |
| 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 | 0.00 | 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 | 0.01 | 0.46 |
| I | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 1.00 | 0.00 | 0.50 | 0.00 | 0.50 | 0.13 | 4.78 |
| x | 0.00 | 0.00 | 2.50 | 0.00 | 0.50 | 2.33 | 1.25 | 1.75 | 1.60 | 0.50 | 2.00 | 2.00 | 1.50 | 1.50 | 1.50 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.67 | 1.00 | 2.00 | 1.50 | 0.92 | 35.18 |
| r | 0.00 | 0.00 | 0.25 | 0.50 | 0.00 | 0.00 | 0.00 | 1.00 | 0.20 | 0.75 | 1.00 | 1.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.00 | 0.33 | 0.00 | 0.28 | 10.74 |
| s | 1.00 | 0.50 | 0.00 | 1.50 | 0.50 | 0.00 | 0.25 | 0.75 | 1.60 | 0.75 | 1.00 | 0.75 | 1.50 | 1.50 | 1.00 | 0.67 | 0.33 | 0.33 | 1.00 | 1.67 | 1.00 | 1.25 | 1.50 | 0.00 | 0.00 | 0.00 | 0.67 | 0.50 | 0.77 | 29.38 |
| a | 0.00 | 0.50 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 0.25 | 1.00 | 0.67 | 1.67 | 1.67 | 1.00 | 0.33 | 0.33 | 0.50 | 0.00 | 1.00 | 0.33 | 0.00 | 0.00 | 0.50 | 0.42 | 16.04 |
| 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 | 0.25 | 0.00 | 0.33 | 0.00 | 0.67 | 0.00 | 0.00 | 0.33 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.08 | 3.19 |
| k | 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 | 0.50 | 0.50 | 0.67 | 0.00 | 0.00 | 1.00 | 0.67 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.14 | 5.46 |
| x | 0.00 | 0.00 | 0.75 | 0.00 | 0.00 | 1.67 | 0.50 | 0.75 | 0.20 | 0.25 | 0.75 | 1.25 | 1.00 | 1.25 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 1.00 | 0.33 | 1.00 | 1.33 | 1.50 | 0.54 | 20.53 |
| o | 0.50 | 1.00 | 2.00 | 2.00 | 1.25 | 0.33 | 1.00 | 3.00 | 3.00 | 1.25 | 3.25 | 2.50 | 2.25 | 2.00 | 1.00 | 1.00 | 0.00 | 0.67 | 0.00 | 0.00 | 0.33 | 1.00 | 1.50 | 1.00 | 1.00 | 2.00 | 1.67 | 1.00 | 1.34 | 51.21 |
| i | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.20 | 0.50 | 0.00 | 0.50 | 0.25 | 0.00 | 1.00 | 0.67 | 0.67 | 1.67 | 1.00 | 2.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.37 | 14.04 |
| c | 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 | 1.00 | 1.33 | 1.33 | 0.67 | 2.00 | 0.67 | 0.67 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.37 | 14.22 |
| CV | 26.50 | 22.00 | 7.75 | 26.00 | 14.75 | 3.33 | 8.25 | 28.50 | 33.00 | 21.25 | 26.25 | 30.25 | 59.00 | 87.75 | 83.50 | 90.00 | 60.00 | 88.00 | 114.50 | 92.33 | 67.67 | 51.25 | 30.50 | 9.00 | 20.00 | 15.00 | 17.00 | 46.00 | 42.12 | 100 |
| CVn | 0.00 | 0.00 | 1.25 | 5.50 | 0.50 | 1.33 | 8.00 | 27.50 | 28.40 | 4.75 | 6.25 | 10.50 | 27.75 | 37.00 | 39.50 | 42.00 | 28.00 | 50.33 | 70.50 | 73.00 | 67.67 | 51.25 | 30.50 | 9.00 | 20.00 | 12.50 | 15.67 | 40.00 | 25.31 | 60.09 |
| CVs | 26.50 | 22.00 | 6.50 | 20.50 | 14.25 | 2.00 | 0.25 | 1.00 | 4.60 | 16.50 | 20.00 | 19.75 | 31.25 | 50.75 | 44.00 | 48.00 | 32.00 | 37.67 | 44.00 | 19.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.50 | 1.33 | 6.00 | 16.81 | 39.91 |
|
