Statistics of sunspot activity
March, 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 | 29 | 30 | 31 | Average | % |
| W | 63.50 | 69.00 | 61.75 | 88.67 | 100.00 | 118.50 | 119.00 | 119.33 | 117.00 | 75.00 | 91.50 | 71.00 | 77.33 | 53.67 | 46.50 | 39.00 | 38.50 | 32.33 | 54.00 | 40.00 | 22.67 | 33.33 | 35.50 | 60.00 | 93.67 | 93.50 | 124.00 | 109.75 | 97.75 | 90.25 | 68.33 | 74.33 | 100 |
| Wn | 44.50 | 50.67 | 51.25 | 77.67 | 77.67 | 87.00 | 93.00 | 96.67 | 101.67 | 71.33 | 91.50 | 71.00 | 77.33 | 49.67 | 46.50 | 23.00 | 18.00 | 14.00 | 26.50 | 32.50 | 19.00 | 20.00 | 15.25 | 27.50 | 38.00 | 28.50 | 53.50 | 44.00 | 43.25 | 38.75 | 36.33 | 50.50 | 67.94 |
| Ws | 19.00 | 18.33 | 10.50 | 11.00 | 22.33 | 31.50 | 26.00 | 22.67 | 15.33 | 3.67 | 0.00 | 0.00 | 0.00 | 4.00 | 0.00 | 16.00 | 20.50 | 18.33 | 27.50 | 7.50 | 3.67 | 13.33 | 20.25 | 32.50 | 55.67 | 65.00 | 70.50 | 65.75 | 54.50 | 51.50 | 32.00 | 23.83 | 32.06 |
| n | 2.50 | 2.33 | 3.50 | 4.67 | 4.33 | 5.00 | 5.00 | 5.00 | 4.00 | 3.33 | 2.25 | 3.00 | 3.67 | 3.33 | 3.00 | 2.50 | 2.50 | 2.00 | 3.50 | 2.50 | 1.33 | 2.33 | 2.25 | 3.50 | 5.33 | 5.25 | 7.75 | 6.75 | 5.50 | 5.00 | 4.67 | 3.79 | 100 |
| A | 0.00 | 0.00 | 0.25 | 0.67 | 0.33 | 0.50 | 0.00 | 0.33 | 0.00 | 0.67 | 0.00 | 0.25 | 0.33 | 0.67 | 1.00 | 0.50 | 0.00 | 0.00 | 1.50 | 0.50 | 0.00 | 0.33 | 0.25 | 0.00 | 1.00 | 1.00 | 2.25 | 1.00 | 0.50 | 0.50 | 1.33 | 0.51 | 13.32 |
| B | 0.50 | 0.33 | 1.00 | 1.67 | 1.33 | 2.00 | 1.00 | 0.67 | 0.33 | 0.33 | 0.25 | 0.75 | 1.33 | 0.67 | 0.50 | 0.25 | 0.75 | 1.33 | 1.00 | 1.00 | 0.00 | 0.00 | 0.25 | 2.50 | 0.33 | 0.25 | 0.75 | 1.25 | 1.50 | 1.00 | 0.00 | 0.80 | 21.12 |
| C | 1.00 | 0.67 | 0.50 | 0.33 | 0.00 | 0.50 | 0.33 | 0.33 | 0.33 | 0.33 | 0.00 | 0.25 | 0.33 | 0.33 | 0.00 | 0.50 | 1.00 | 0.33 | 1.00 | 1.00 | 0.00 | 0.00 | 0.25 | 0.00 | 2.33 | 1.00 | 1.25 | 0.75 | 0.00 | 0.25 | 0.00 | 0.48 | 12.69 |
| D | 0.00 | 0.00 | 0.50 | 0.33 | 0.33 | 1.00 | 1.00 | 1.33 | 1.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.67 | 1.50 | 1.25 | 0.25 | 0.33 | 0.00 | 0.00 | 1.00 | 1.33 | 0.50 | 0.00 | 0.00 | 1.00 | 1.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.50 | 13.25 |
| E | 1.00 | 0.67 | 1.00 | 1.33 | 1.33 | 1.00 | 1.67 | 1.67 | 2.00 | 1.67 | 2.00 | 1.25 | 1.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.67 | 0.75 | 0.75 | 0.50 | 0.50 | 1.00 | 0.67 | 0.75 | 19.77 |
| F | 0.00 | 0.33 | 0.00 | 0.33 | 0.33 | 0.00 | 0.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 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 | 0.75 | 0.25 | 0.00 | 0.17 | 4.39 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.75 | 0.50 | 0.33 | 0.00 | 0.25 | 0.00 | 0.50 | 0.75 | 1.33 | 0.22 | 5.74 |
| 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| I | 0.00 | 0.33 | 0.25 | 0.00 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.25 | 0.00 | 0.67 | 1.00 | 1.25 | 1.75 | 1.50 | 1.25 | 1.33 | 0.37 | 9.71 |
| x | 0.50 | 0.33 | 1.25 | 2.33 | 1.67 | 2.50 | 1.00 | 1.00 | 0.33 | 1.00 | 0.25 | 1.00 | 1.67 | 1.33 | 1.50 | 0.75 | 0.75 | 1.33 | 2.50 | 1.50 | 0.00 | 0.33 | 0.50 | 2.50 | 1.33 | 1.25 | 3.00 | 2.25 | 2.00 | 1.50 | 1.33 | 1.31 | 34.44 |
| r | 0.00 | 0.67 | 0.25 | 0.33 | 0.33 | 0.00 | 1.00 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.75 | 0.50 | 0.75 | 0.75 | 0.50 | 1.00 | 0.31 | 8.22 |
| s | 1.00 | 0.67 | 0.75 | 0.00 | 0.00 | 0.00 | 0.67 | 1.00 | 1.00 | 0.33 | 0.50 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 1.00 | 0.33 | 0.50 | 1.00 | 1.00 | 0.33 | 0.75 | 0.00 | 2.67 | 1.50 | 1.75 | 1.25 | 1.00 | 1.75 | 1.67 | 0.77 | 20.34 |
| a | 0.50 | 0.00 | 0.25 | 1.00 | 0.33 | 0.50 | 0.33 | 0.67 | 1.00 | 0.67 | 0.00 | 0.75 | 0.00 | 1.00 | 0.50 | 0.75 | 0.75 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 0.00 | 0.00 | 0.33 | 1.25 | 2.00 | 2.00 | 1.50 | 0.75 | 0.67 | 0.60 | 15.73 |
| h | 0.00 | 0.33 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.25 | 0.00 | 0.33 | 0.25 | 0.25 | 0.00 | 0.00 | 0.25 | 0.00 | 0.17 | 4.61 |
| k | 0.50 | 0.33 | 0.75 | 1.00 | 2.00 | 2.00 | 2.00 | 1.67 | 0.67 | 1.00 | 1.50 | 1.25 | 1.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 1.00 | 0.00 | 0.25 | 0.25 | 0.50 | 0.25 | 0.25 | 0.00 | 0.63 | 16.65 |
| x | 0.00 | 0.33 | 0.50 | 0.67 | 0.67 | 0.50 | 0.33 | 0.33 | 0.00 | 1.00 | 0.00 | 0.25 | 0.33 | 0.67 | 1.00 | 0.50 | 0.50 | 0.00 | 1.50 | 0.50 | 0.33 | 0.33 | 0.50 | 0.00 | 1.67 | 2.00 | 3.50 | 2.75 | 2.00 | 1.75 | 2.67 | 0.87 | 23.03 |
| o | 1.50 | 1.00 | 2.00 | 2.00 | 1.67 | 2.00 | 1.67 | 2.00 | 1.33 | 0.67 | 0.25 | 0.75 | 2.00 | 1.33 | 0.75 | 1.25 | 1.75 | 2.00 | 2.00 | 1.50 | 0.67 | 1.33 | 1.75 | 3.00 | 2.33 | 2.00 | 3.00 | 2.25 | 2.00 | 2.00 | 1.33 | 1.65 | 43.44 |
| i | 0.50 | 0.67 | 0.25 | 0.33 | 0.33 | 1.00 | 1.00 | 1.00 | 1.00 | 0.67 | 0.75 | 0.50 | 0.33 | 1.00 | 1.00 | 0.75 | 0.25 | 0.00 | 0.00 | 0.50 | 0.33 | 0.67 | 0.00 | 0.50 | 1.00 | 0.75 | 0.50 | 1.00 | 0.50 | 0.50 | 0.67 | 0.59 | 15.52 |
| c | 0.50 | 0.33 | 0.75 | 1.67 | 1.67 | 1.50 | 2.00 | 1.67 | 1.67 | 1.00 | 1.25 | 1.50 | 1.00 | 0.33 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.50 | 0.75 | 0.75 | 1.00 | 0.75 | 0.00 | 0.68 | 18.00 |
| CV | 51.50 | 53.67 | 74.25 | 90.00 | 120.00 | 115.50 | 147.33 | 155.00 | 130.33 | 78.67 | 96.00 | 87.25 | 93.00 | 74.00 | 53.75 | 36.25 | 22.25 | 12.67 | 11.50 | 14.00 | 27.33 | 73.00 | 57.50 | 51.00 | 66.67 | 80.50 | 96.25 | 90.00 | 75.75 | 82.75 | 59.00 | 73.44 | 100 |
| CVn | 40.50 | 47.67 | 72.75 | 88.33 | 112.00 | 110.00 | 108.67 | 128.00 | 119.67 | 77.33 | 96.00 | 87.25 | 93.00 | 73.33 | 53.75 | 24.00 | 8.50 | 3.00 | 8.50 | 13.00 | 24.00 | 32.67 | 12.25 | 4.00 | 22.33 | 16.25 | 32.25 | 34.00 | 35.00 | 45.75 | 32.33 | 53.42 | 72.74 |
| CVs | 11.00 | 6.00 | 1.50 | 1.67 | 8.00 | 5.50 | 38.67 | 27.00 | 10.67 | 1.33 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 12.25 | 13.75 | 9.67 | 3.00 | 1.00 | 3.33 | 40.33 | 45.25 | 47.00 | 44.33 | 64.25 | 64.00 | 56.00 | 40.75 | 37.00 | 26.67 | 20.02 | 27.26 |
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