Statistics of sunspot activity
February, 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 | Average | % |
| W | 55.67 | 90.25 | 92.50 | 78.00 | 111.00 | 65.60 | 74.00 | 70.25 | 74.75 | 75.75 | 74.00 | 70.50 | 61.00 | 57.50 | 70.33 | 68.25 | 22.00 | 28.00 | 22.50 | 42.50 | 44.50 | 52.00 | 70.00 | 73.50 | 83.00 | 86.25 | 102.50 | 84.50 | 77.25 | 68.20 | 100 |
| Wn | 25.00 | 26.50 | 23.00 | 25.33 | 35.33 | 26.60 | 29.33 | 23.00 | 18.00 | 18.75 | 22.25 | 18.50 | 17.00 | 26.75 | 28.00 | 35.00 | 11.00 | 16.75 | 11.50 | 18.00 | 21.50 | 29.50 | 32.67 | 41.25 | 47.75 | 46.25 | 37.50 | 32.25 | 25.50 | 26.54 | 38.92 |
| Ws | 30.67 | 63.75 | 69.50 | 52.67 | 75.67 | 39.00 | 44.67 | 47.25 | 56.75 | 57.00 | 51.75 | 52.00 | 44.00 | 30.75 | 42.33 | 33.25 | 11.00 | 11.25 | 11.00 | 24.50 | 23.00 | 22.50 | 37.33 | 32.25 | 35.25 | 40.00 | 65.00 | 52.25 | 51.75 | 41.66 | 61.08 |
| n | 3.67 | 5.25 | 6.00 | 4.33 | 5.33 | 3.00 | 2.67 | 3.00 | 3.75 | 4.50 | 4.50 | 5.00 | 4.33 | 4.00 | 5.67 | 5.75 | 2.00 | 2.50 | 2.00 | 3.50 | 3.50 | 3.50 | 4.33 | 3.50 | 3.50 | 3.25 | 5.00 | 4.25 | 3.75 | 3.98 | 100 |
| A | 0.00 | 0.25 | 0.50 | 0.00 | 0.33 | 0.40 | 0.67 | 0.00 | 0.50 | 1.50 | 1.25 | 1.00 | 1.00 | 0.75 | 2.00 | 2.00 | 0.00 | 1.00 | 0.00 | 1.50 | 1.00 | 1.50 | 1.67 | 0.00 | 0.50 | 0.25 | 0.75 | 0.50 | 0.00 | 0.72 | 18.05 |
| B | 1.00 | 0.50 | 0.50 | 0.00 | 0.00 | 0.20 | 0.00 | 0.25 | 0.75 | 0.50 | 0.25 | 1.50 | 0.33 | 0.50 | 0.33 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.50 | 0.33 | 0.25 | 0.25 | 0.00 | 0.25 | 0.25 | 0.75 | 0.39 | 9.71 |
| C | 0.67 | 1.50 | 2.50 | 1.33 | 0.33 | 0.40 | 0.00 | 0.50 | 0.25 | 0.25 | 1.25 | 1.00 | 1.67 | 0.75 | 1.33 | 1.25 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.33 | 1.00 | 0.75 | 0.25 | 1.25 | 1.00 | 0.25 | 0.72 | 18.05 |
| D | 1.33 | 1.50 | 1.00 | 2.00 | 2.67 | 0.80 | 0.67 | 1.00 | 1.50 | 1.50 | 1.00 | 1.50 | 1.33 | 1.25 | 1.33 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.50 | 1.00 | 0.50 | 0.50 | 1.50 | 1.50 | 2.00 | 1.50 | 1.05 | 26.34 |
| E | 0.00 | 0.50 | 0.50 | 0.33 | 0.33 | 0.40 | 0.67 | 0.25 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.50 | 0.75 | 0.50 | 0.75 | 0.25 | 1.00 | 0.28 | 6.92 |
| 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| G | 0.33 | 0.00 | 0.00 | 0.67 | 0.67 | 0.60 | 0.67 | 0.75 | 0.25 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.25 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.20 | 5.07 |
| 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 | 0.00 | 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 | 0.33 | 1.00 | 1.00 | 0.00 | 1.00 | 0.20 | 0.00 | 0.25 | 0.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.75 | 0.67 | 1.50 | 2.00 | 1.50 | 2.00 | 1.00 | 0.50 | 0.50 | 0.33 | 1.00 | 0.75 | 0.75 | 0.50 | 0.00 | 0.25 | 0.63 | 15.85 |
| x | 1.00 | 0.75 | 1.00 | 0.00 | 0.33 | 0.60 | 0.67 | 0.25 | 1.25 | 2.00 | 1.50 | 2.50 | 1.33 | 1.25 | 2.33 | 3.00 | 0.00 | 1.00 | 0.00 | 1.50 | 2.00 | 2.00 | 2.00 | 0.25 | 0.75 | 0.25 | 1.00 | 0.75 | 0.75 | 1.10 | 27.76 |
| r | 0.33 | 1.00 | 1.50 | 0.00 | 0.33 | 0.20 | 0.33 | 0.00 | 0.25 | 0.00 | 0.50 | 0.50 | 1.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 1.00 | 0.00 | 1.00 | 0.50 | 0.25 | 0.00 | 0.50 | 0.25 | 0.00 | 0.36 | 9.13 |
| s | 1.67 | 1.50 | 1.50 | 1.33 | 1.33 | 0.40 | 0.33 | 0.25 | 0.75 | 1.00 | 0.00 | 1.00 | 1.67 | 2.00 | 2.67 | 2.75 | 2.00 | 1.25 | 1.00 | 2.00 | 0.50 | 0.50 | 0.00 | 0.75 | 1.00 | 1.00 | 1.00 | 0.75 | 0.50 | 1.12 | 28.09 |
| a | 0.67 | 2.00 | 2.00 | 2.67 | 3.00 | 1.60 | 1.00 | 1.75 | 0.50 | 1.25 | 2.00 | 0.50 | 0.33 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 1.00 | 1.00 | 1.50 | 0.50 | 1.25 | 1.25 | 2.00 | 2.25 | 1.08 | 27.11 |
| h | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.50 | 0.50 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 2.02 |
| k | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.20 | 0.33 | 0.75 | 0.75 | 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 | 0.25 | 0.75 | 0.75 | 1.25 | 0.50 | 0.25 | 0.23 | 5.88 |
| x | 0.33 | 1.25 | 1.50 | 0.00 | 1.33 | 0.60 | 0.67 | 0.25 | 0.50 | 1.75 | 1.50 | 1.00 | 1.00 | 1.50 | 2.67 | 3.50 | 2.00 | 2.50 | 2.00 | 2.50 | 1.50 | 2.00 | 2.00 | 1.00 | 1.25 | 1.00 | 1.25 | 0.50 | 0.25 | 1.35 | 33.90 |
| o | 3.33 | 2.00 | 3.00 | 3.33 | 3.33 | 1.60 | 1.33 | 2.00 | 1.75 | 1.75 | 2.25 | 3.00 | 3.00 | 2.00 | 3.00 | 2.25 | 0.00 | 0.00 | 0.00 | 1.00 | 2.00 | 1.00 | 1.67 | 1.75 | 1.00 | 0.75 | 2.50 | 3.00 | 2.25 | 1.93 | 48.42 |
| i | 0.00 | 2.00 | 1.50 | 1.00 | 0.67 | 0.80 | 0.33 | 0.75 | 1.50 | 0.75 | 0.50 | 1.00 | 0.33 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.67 | 0.50 | 0.75 | 0.75 | 0.25 | 0.50 | 0.75 | 0.56 | 14.13 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.25 | 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 | 0.25 | 0.50 | 0.75 | 1.00 | 0.25 | 0.50 | 0.14 | 3.54 |
| CV | 47.67 | 66.25 | 62.50 | 85.67 | 94.67 | 48.60 | 53.00 | 66.50 | 80.75 | 61.25 | 59.25 | 59.50 | 44.67 | 46.50 | 63.33 | 32.75 | 20.00 | 14.50 | 17.00 | 36.50 | 13.00 | 28.50 | 45.00 | 58.75 | 73.75 | 79.00 | 101.75 | 76.00 | 71.00 | 55.43 | 100 |
| CVn | 19.00 | 17.75 | 16.00 | 21.00 | 21.00 | 15.40 | 22.00 | 14.25 | 8.75 | 4.50 | 6.25 | 4.50 | 6.33 | 15.50 | 26.00 | 17.25 | 10.00 | 6.00 | 8.50 | 18.00 | 4.00 | 21.50 | 29.33 | 40.25 | 47.00 | 47.25 | 55.75 | 35.25 | 33.50 | 20.41 | 36.81 |
| CVs | 28.67 | 48.50 | 46.50 | 64.67 | 73.67 | 33.20 | 31.00 | 52.25 | 72.00 | 56.75 | 53.00 | 55.00 | 38.33 | 31.00 | 37.33 | 15.50 | 10.00 | 8.50 | 8.50 | 18.50 | 9.00 | 7.00 | 15.67 | 18.50 | 26.75 | 31.75 | 46.00 | 40.75 | 37.50 | 35.03 | 63.19 |
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