Statistics of sunspot activity
February, 1986
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 | 20.33 | 48.25 | 69.00 | 66.50 | 66.50 | 57.40 | 61.20 | 67.50 | 57.33 | 37.20 | 49.00 | 23.33 | 22.00 | 16.50 | 18.00 | 0.00 | 0.00 | 0.00 | 0.00 | 11.00 | 11.00 | 11.00 | 11.00 | 11.00 | 0.00 | 12.50 | 16.00 | 11.67 | 27.69 | 100 |
| Wn | 0.00 | 0.00 | 0.00 | 0.00 | 6.00 | 0.00 | 0.00 | 8.00 | 0.00 | 5.80 | 8.25 | 7.67 | 0.00 | 7.67 | 18.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 7.00 | 16.00 | 11.67 | 3.43 | 12.39 |
| Ws | 20.33 | 48.25 | 69.00 | 66.50 | 60.50 | 57.40 | 61.20 | 59.50 | 57.33 | 31.40 | 40.75 | 15.67 | 22.00 | 8.83 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 11.00 | 11.00 | 11.00 | 11.00 | 11.00 | 0.00 | 5.50 | 0.00 | 0.00 | 24.26 | 87.61 |
| n | 1.00 | 1.75 | 3.00 | 2.75 | 2.50 | 2.00 | 2.00 | 2.00 | 2.00 | 1.60 | 2.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | 1.00 | 1.00 | 1.00 | 1.24 | 100 |
| A | 0.00 | 0.00 | 0.17 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.23 | 18.55 |
| B | 0.00 | 0.00 | 0.50 | 0.00 | 0.25 | 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 | 0.50 | 0.20 | 0.33 | 0.07 | 5.73 |
| C | 0.17 | 1.00 | 0.33 | 1.50 | 0.00 | 0.20 | 0.20 | 0.00 | 0.00 | 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 | 0.60 | 0.00 | 0.16 | 12.72 |
| D | 0.83 | 0.75 | 2.00 | 1.25 | 2.00 | 1.40 | 1.80 | 1.75 | 1.00 | 1.00 | 1.00 | 0.83 | 0.00 | 0.17 | 1.00 | 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 | 0.61 | 49.08 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 1.88 |
| 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 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 1.00 | 0.00 | 0.00 | 0.17 | 0.75 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 8.19 |
| 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 | 0.67 | 0.02 | 1.93 |
| I | 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 | 0.17 | 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 | 0.02 | 1.93 |
| x | 0.00 | 0.00 | 0.67 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | 1.00 | 0.20 | 0.33 | 0.30 | 24.28 |
| r | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.20 | 0.00 | 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 | 0.00 | 0.40 | 0.00 | 0.05 | 3.66 |
| s | 0.00 | 0.50 | 0.67 | 1.25 | 0.50 | 0.40 | 0.40 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.00 | 0.18 | 14.79 |
| a | 0.00 | 0.25 | 0.50 | 0.25 | 0.50 | 0.60 | 0.80 | 0.75 | 1.33 | 0.60 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 17.10 |
| h | 0.17 | 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 | 0.00 | 0.01 | 1.20 |
| k | 0.83 | 0.75 | 1.00 | 1.25 | 1.00 | 1.00 | 0.80 | 0.25 | 0.67 | 0.60 | 1.00 | 1.00 | 1.00 | 0.67 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.48 | 38.97 |
| x | 0.00 | 0.00 | 0.17 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | 0.50 | 0.00 | 0.67 | 0.28 | 22.40 |
| o | 0.33 | 1.00 | 1.17 | 1.50 | 1.25 | 1.00 | 1.00 | 1.25 | 1.67 | 1.20 | 0.00 | 0.83 | 0.75 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 0.33 | 0.55 | 44.65 |
| i | 0.67 | 0.25 | 0.83 | 0.75 | 0.50 | 0.40 | 1.00 | 0.75 | 0.33 | 0.40 | 1.00 | 0.17 | 0.25 | 0.17 | 1.00 | 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 | 0.30 | 24.47 |
| c | 0.00 | 0.50 | 0.83 | 0.50 | 0.50 | 0.60 | 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 | 0.10 | 8.48 |
| CV | 44.83 | 57.50 | 79.67 | 81.25 | 73.25 | 70.40 | 59.80 | 49.50 | 56.00 | 37.60 | 47.00 | 43.67 | 45.00 | 34.17 | 46.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | 1.50 | 8.40 | 25.33 | 31.03 | 100 |
| CVn | 0.00 | 0.00 | 0.00 | 0.00 | 4.75 | 0.00 | 0.00 | 11.50 | 0.00 | 9.20 | 11.50 | 14.83 | 0.00 | 15.83 | 46.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 8.40 | 25.33 | 5.30 | 17.07 |
| CVs | 44.83 | 57.50 | 79.67 | 81.25 | 68.50 | 70.40 | 59.80 | 38.00 | 56.00 | 28.40 | 35.50 | 28.83 | 45.00 | 18.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.00 | 0.50 | 0.00 | 0.00 | 25.73 | 82.93 |
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