Statistics of sunspot activity
February, 2010
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 | 15.00 | 13.60 | 13.33 | 13.80 | 19.50 | 32.40 | 36.00 | 63.50 | 63.00 | 44.33 | 46.60 | 35.40 | 39.00 | 25.00 | 27.80 | 26.50 | 46.75 | 25.60 | 24.20 | 17.75 | 16.50 | 16.25 | 18.67 | 23.50 | 29.00 | 24.25 | 18.75 | 12.25 | 28.15 | 100 |
| Wn | 15.00 | 13.60 | 13.33 | 13.80 | 19.50 | 32.40 | 36.00 | 52.00 | 52.00 | 40.67 | 46.60 | 35.40 | 39.00 | 25.00 | 27.80 | 26.50 | 27.00 | 3.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.00 | 12.80 | 14.00 | 13.00 | 12.25 | 20.59 | 73.16 |
| Ws | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 11.50 | 11.00 | 3.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 19.75 | 22.60 | 24.20 | 17.75 | 16.50 | 16.25 | 18.67 | 17.50 | 16.20 | 10.25 | 5.75 | 0.00 | 7.56 | 26.84 |
| n | 1.00 | 1.00 | 1.00 | 1.20 | 1.75 | 2.20 | 1.67 | 3.25 | 3.00 | 2.33 | 2.00 | 2.00 | 2.00 | 1.75 | 2.00 | 2.00 | 3.00 | 1.60 | 1.40 | 1.00 | 1.00 | 1.00 | 1.33 | 1.75 | 2.00 | 1.75 | 1.50 | 1.00 | 1.73 | 100 |
| A | 0.00 | 0.00 | 0.00 | 0.20 | 1.25 | 0.60 | 0.33 | 1.50 | 0.50 | 0.33 | 0.00 | 0.00 | 0.20 | 0.00 | 0.20 | 0.00 | 1.25 | 0.60 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.25 | 0.25 | 0.25 | 0.31 | 17.77 |
| B | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.40 | 0.33 | 0.50 | 1.00 | 0.33 | 0.00 | 0.00 | 0.20 | 0.50 | 0.20 | 0.25 | 0.75 | 0.40 | 0.40 | 0.00 | 0.00 | 0.00 | 1.00 | 0.75 | 1.00 | 0.25 | 0.25 | 0.25 | 0.32 | 18.60 |
| C | 0.83 | 0.60 | 0.33 | 0.20 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.20 | 1.00 | 1.20 | 1.00 | 0.25 | 0.20 | 0.20 | 0.50 | 1.00 | 1.00 | 0.00 | 0.50 | 1.00 | 1.25 | 0.50 | 0.00 | 0.44 | 25.37 |
| D | 0.17 | 0.20 | 0.00 | 0.00 | 0.00 | 0.60 | 0.00 | 0.25 | 0.00 | 0.33 | 0.20 | 0.00 | 0.20 | 0.25 | 0.00 | 0.25 | 0.25 | 0.40 | 0.40 | 0.50 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 8.94 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.75 | 0.50 | 0.33 | 1.00 | 1.00 | 0.60 | 0.00 | 0.20 | 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 | 0.18 | 10.42 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.25 | 0.50 | 0.50 | 0.40 | 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 | 0.07 | 4.09 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 1.00 | 0.60 | 0.00 | 0.20 | 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 | 0.08 | 4.54 |
| H | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 1.72 |
| I | 0.00 | 0.20 | 0.33 | 0.80 | 0.25 | 0.40 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 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 | 0.50 | 0.50 | 0.15 | 8.56 |
| x | 0.00 | 0.00 | 0.00 | 0.20 | 1.50 | 1.00 | 0.67 | 2.00 | 1.50 | 0.67 | 0.00 | 0.00 | 0.40 | 0.50 | 0.40 | 0.25 | 2.00 | 1.00 | 0.80 | 0.00 | 0.00 | 0.00 | 1.00 | 1.25 | 1.00 | 0.50 | 0.50 | 0.50 | 0.63 | 36.37 |
| r | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.07 | 4.23 |
| s | 0.33 | 0.40 | 0.00 | 0.60 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.33 | 0.60 | 1.20 | 0.60 | 0.50 | 0.20 | 0.00 | 0.50 | 0.00 | 0.20 | 0.75 | 0.75 | 0.75 | 0.33 | 0.00 | 0.00 | 0.75 | 0.50 | 0.25 | 0.35 | 20.39 |
| a | 0.67 | 0.60 | 0.67 | 0.20 | 0.25 | 0.40 | 0.00 | 0.25 | 0.00 | 1.00 | 0.60 | 0.40 | 0.80 | 0.75 | 1.20 | 1.00 | 0.50 | 0.60 | 0.40 | 0.25 | 0.25 | 0.25 | 0.00 | 0.50 | 1.00 | 0.50 | 0.25 | 0.00 | 0.47 | 27.40 |
| h | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 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 | 0.41 |
| k | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.20 | 0.67 | 1.00 | 1.50 | 0.33 | 0.80 | 0.20 | 0.20 | 0.00 | 0.20 | 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 | 0.19 | 11.21 |
| x | 0.00 | 0.20 | 0.67 | 1.00 | 1.50 | 1.00 | 0.33 | 1.50 | 1.00 | 0.50 | 0.00 | 0.00 | 0.20 | 0.00 | 0.20 | 0.50 | 1.75 | 0.60 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.25 | 0.75 | 0.75 | 0.49 | 28.05 |
| o | 0.67 | 0.80 | 0.33 | 0.20 | 0.25 | 0.40 | 0.33 | 0.75 | 1.00 | 0.33 | 0.40 | 1.00 | 1.00 | 1.50 | 1.40 | 1.50 | 0.75 | 0.40 | 0.40 | 0.50 | 1.00 | 0.75 | 1.33 | 1.25 | 1.80 | 1.50 | 0.75 | 0.25 | 0.81 | 46.51 |
| i | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.67 | 0.00 | 0.00 | 1.33 | 1.20 | 0.60 | 0.80 | 0.25 | 0.40 | 0.00 | 0.50 | 0.60 | 0.60 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.32 | 18.22 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.33 | 1.00 | 1.00 | 0.17 | 0.40 | 0.40 | 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 | 0.13 | 7.22 |
| CV | 11.67 | 11.80 | 17.33 | 8.60 | 3.50 | 23.00 | 45.33 | 63.50 | 77.50 | 43.33 | 71.80 | 64.00 | 40.60 | 16.00 | 24.40 | 14.50 | 16.25 | 12.00 | 13.00 | 18.25 | 10.25 | 10.50 | 10.33 | 6.00 | 10.20 | 13.00 | 9.00 | 4.25 | 23.93 | 100 |
| CVn | 11.67 | 11.80 | 17.33 | 8.60 | 3.50 | 23.00 | 45.33 | 62.50 | 58.50 | 43.00 | 71.80 | 64.00 | 40.60 | 16.00 | 24.40 | 14.50 | 6.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.25 | 5.60 | 7.00 | 8.25 | 4.25 | 19.65 | 82.11 |
| CVs | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 19.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 10.25 | 11.80 | 13.00 | 18.25 | 10.25 | 10.50 | 10.33 | 3.75 | 4.60 | 6.00 | 0.75 | 0.00 | 4.28 | 17.89 |
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