Statistics of sunspot activity
March, 1993
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 | 104.20 | 110.17 | 107.83 | 142.33 | 151.00 | 128.40 | 132.50 | 118.60 | 110.17 | 113.33 | 93.40 | 98.40 | 85.67 | 67.17 | 82.67 | 70.20 | 80.67 | 76.29 | 103.20 | 86.67 | 117.50 | 96.67 | 81.67 | 68.40 | 87.83 | 68.25 | 69.50 | 63.83 | 61.80 | 92.50 | 92.33 | 95.59 | 100 |
| Wn | 71.00 | 74.83 | 64.00 | 77.17 | 77.00 | 47.60 | 43.67 | 44.00 | 38.00 | 40.17 | 41.40 | 48.20 | 48.67 | 44.17 | 48.00 | 40.40 | 39.00 | 31.29 | 39.00 | 41.00 | 62.33 | 49.83 | 30.33 | 22.40 | 54.00 | 48.00 | 47.50 | 43.33 | 38.20 | 55.00 | 38.50 | 48.00 | 50.22 |
| Ws | 33.20 | 35.33 | 43.83 | 65.17 | 74.00 | 80.80 | 88.83 | 74.60 | 72.17 | 73.17 | 52.00 | 50.20 | 37.00 | 23.00 | 34.67 | 29.80 | 41.67 | 45.00 | 64.20 | 45.67 | 55.17 | 46.83 | 51.33 | 46.00 | 33.83 | 20.25 | 22.00 | 20.50 | 23.60 | 37.50 | 53.83 | 47.59 | 49.78 |
| n | 5.40 | 5.17 | 5.17 | 6.17 | 7.00 | 5.40 | 5.67 | 5.20 | 5.83 | 6.17 | 5.00 | 4.20 | 3.83 | 3.50 | 4.33 | 3.40 | 4.00 | 4.00 | 5.20 | 5.33 | 6.33 | 6.17 | 6.00 | 5.20 | 6.33 | 4.75 | 4.75 | 4.00 | 3.60 | 4.00 | 4.33 | 5.01 | 100 |
| A | 0.80 | 0.67 | 0.00 | 1.00 | 1.80 | 0.20 | 0.50 | 0.20 | 0.83 | 1.50 | 0.40 | 0.20 | 0.17 | 0.17 | 1.17 | 0.00 | 0.00 | 0.71 | 0.80 | 1.00 | 0.67 | 1.17 | 1.67 | 2.20 | 2.17 | 0.75 | 2.00 | 0.83 | 1.00 | 0.75 | 0.50 | 0.83 | 16.61 |
| B | 0.80 | 0.50 | 0.17 | 0.33 | 0.00 | 0.80 | 1.00 | 2.20 | 2.50 | 1.33 | 1.20 | 0.20 | 0.50 | 0.17 | 0.67 | 0.20 | 0.33 | 0.14 | 0.40 | 0.50 | 1.00 | 0.67 | 0.50 | 0.20 | 1.33 | 1.25 | 0.25 | 0.83 | 0.00 | 0.25 | 0.50 | 0.67 | 13.33 |
| C | 0.40 | 1.67 | 1.33 | 0.83 | 0.20 | 1.40 | 1.50 | 1.20 | 1.33 | 2.17 | 1.40 | 1.00 | 0.33 | 0.17 | 0.00 | 0.60 | 2.00 | 1.14 | 0.80 | 0.50 | 1.83 | 0.83 | 1.17 | 0.60 | 0.50 | 1.00 | 0.50 | 0.67 | 0.80 | 0.25 | 0.67 | 0.93 | 18.52 |
| D | 0.60 | 0.67 | 2.00 | 2.17 | 2.60 | 1.80 | 1.17 | 0.40 | 0.17 | 0.17 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.20 | 0.00 | 0.71 | 1.60 | 1.00 | 1.17 | 1.67 | 1.67 | 1.60 | 1.17 | 1.25 | 0.75 | 0.17 | 0.60 | 1.75 | 1.67 | 0.96 | 19.11 |
| E | 0.20 | 0.50 | 0.33 | 0.83 | 0.80 | 0.60 | 1.00 | 0.60 | 0.50 | 0.17 | 0.20 | 0.20 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.43 | 0.80 | 0.67 | 0.17 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.75 | 0.50 | 0.32 | 6.29 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.33 | 0.20 | 0.40 | 0.83 | 0.67 | 0.33 | 0.40 | 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 | 0.13 | 2.57 |
| G | 1.00 | 0.33 | 0.33 | 0.17 | 0.60 | 0.40 | 0.00 | 0.40 | 0.33 | 0.50 | 1.00 | 1.40 | 1.00 | 0.33 | 0.50 | 0.80 | 0.33 | 0.14 | 0.00 | 0.17 | 0.17 | 0.17 | 0.00 | 0.00 | 0.00 | 0.25 | 0.75 | 0.83 | 0.60 | 0.25 | 0.50 | 0.43 | 8.53 |
| 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 | 0.33 | 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 | 0.00 | 0.00 | 0.01 | 0.21 |
| I | 1.60 | 0.83 | 1.00 | 0.83 | 1.00 | 0.20 | 0.50 | 0.20 | 0.00 | 0.00 | 0.60 | 0.80 | 1.00 | 1.00 | 1.17 | 1.20 | 0.67 | 0.71 | 0.80 | 1.50 | 1.33 | 1.50 | 1.00 | 0.60 | 1.17 | 0.25 | 0.50 | 0.67 | 0.40 | 0.00 | 0.00 | 0.74 | 14.82 |
| x | 1.60 | 1.17 | 0.17 | 1.33 | 1.80 | 1.00 | 1.50 | 2.40 | 3.33 | 2.83 | 1.60 | 0.40 | 0.67 | 0.33 | 1.83 | 0.20 | 0.33 | 0.86 | 1.20 | 1.50 | 1.67 | 1.83 | 2.17 | 2.40 | 3.50 | 2.00 | 2.25 | 1.67 | 1.00 | 1.00 | 1.00 | 1.50 | 29.94 |
| r | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.20 | 0.17 | 1.00 | 0.20 | 0.20 | 0.17 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.20 | 0.17 | 0.67 | 0.50 | 0.33 | 0.00 | 0.33 | 0.75 | 0.00 | 0.50 | 0.00 | 0.00 | 0.33 | 0.21 | 4.13 |
| s | 1.80 | 2.00 | 1.33 | 0.50 | 1.60 | 1.20 | 1.00 | 0.60 | 1.00 | 1.00 | 1.60 | 0.80 | 1.17 | 1.33 | 1.50 | 2.20 | 2.67 | 1.29 | 1.40 | 2.33 | 2.33 | 2.00 | 1.67 | 1.20 | 1.00 | 0.50 | 0.75 | 0.50 | 1.40 | 0.75 | 1.17 | 1.34 | 26.75 |
| a | 1.80 | 1.67 | 2.83 | 3.17 | 2.60 | 2.40 | 1.83 | 1.00 | 0.33 | 0.33 | 0.60 | 1.80 | 0.83 | 1.00 | 0.50 | 1.00 | 1.00 | 1.86 | 2.40 | 1.17 | 1.50 | 1.67 | 1.83 | 1.40 | 1.50 | 1.50 | 1.25 | 0.83 | 0.80 | 2.25 | 1.67 | 1.49 | 29.80 |
| h | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 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 | 0.00 | 0.00 | 0.00 | 0.02 | 0.36 |
| k | 0.00 | 0.33 | 0.67 | 1.17 | 1.00 | 0.80 | 1.00 | 1.00 | 1.00 | 1.00 | 0.80 | 0.80 | 1.00 | 0.83 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.17 | 0.17 | 0.00 | 0.20 | 0.00 | 0.00 | 0.50 | 0.50 | 0.40 | 0.00 | 0.17 | 0.45 | 9.01 |
| x | 2.40 | 1.50 | 1.00 | 1.83 | 2.80 | 0.40 | 1.00 | 0.40 | 0.83 | 1.50 | 1.00 | 1.00 | 1.17 | 1.17 | 2.67 | 1.20 | 0.67 | 1.43 | 1.60 | 2.50 | 2.00 | 2.67 | 2.67 | 2.80 | 3.33 | 1.00 | 2.50 | 1.50 | 1.40 | 0.75 | 0.50 | 1.59 | 31.64 |
| o | 2.40 | 2.67 | 3.33 | 2.50 | 2.60 | 4.00 | 3.67 | 4.20 | 4.33 | 4.17 | 3.60 | 2.60 | 1.67 | 1.67 | 1.17 | 1.80 | 2.67 | 1.43 | 2.00 | 1.83 | 3.33 | 2.83 | 3.00 | 2.40 | 2.67 | 3.50 | 2.25 | 2.50 | 2.00 | 2.50 | 3.33 | 2.73 | 54.44 |
| i | 0.60 | 0.83 | 0.50 | 1.33 | 1.20 | 0.80 | 0.83 | 0.40 | 0.67 | 0.50 | 0.20 | 0.60 | 1.00 | 0.67 | 0.50 | 0.40 | 0.67 | 1.00 | 1.40 | 1.00 | 1.00 | 0.67 | 0.33 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.20 | 0.75 | 0.50 | 0.60 | 12.04 |
| c | 0.00 | 0.17 | 0.33 | 0.50 | 0.40 | 0.20 | 0.17 | 0.20 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 1.88 |
| CV | 60.00 | 70.67 | 99.83 | 115.33 | 128.00 | 96.80 | 91.17 | 72.00 | 68.33 | 70.50 | 80.80 | 84.40 | 80.00 | 75.67 | 50.50 | 52.40 | 54.33 | 50.14 | 71.40 | 67.17 | 68.83 | 69.50 | 57.17 | 52.20 | 44.17 | 44.00 | 54.50 | 44.83 | 53.20 | 62.50 | 69.50 | 69.67 | 100 |
| CVn | 43.20 | 36.50 | 36.00 | 39.67 | 51.80 | 32.00 | 29.83 | 17.40 | 14.33 | 15.83 | 24.40 | 30.20 | 31.50 | 30.00 | 25.33 | 25.60 | 27.00 | 22.29 | 24.60 | 28.17 | 37.00 | 40.67 | 28.17 | 19.40 | 21.33 | 24.25 | 31.50 | 35.17 | 32.00 | 23.50 | 23.83 | 29.11 | 41.78 |
| CVs | 16.80 | 34.17 | 63.83 | 75.67 | 76.20 | 64.80 | 61.33 | 54.60 | 54.00 | 54.67 | 56.40 | 54.20 | 48.50 | 45.67 | 25.17 | 26.80 | 27.33 | 27.86 | 46.80 | 39.00 | 31.83 | 28.83 | 29.00 | 32.80 | 22.83 | 19.75 | 23.00 | 9.67 | 21.20 | 39.00 | 45.67 | 40.56 | 58.22 |
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