Statistics of sunspot activity
September, 1992
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 | Average | % |
| W | 64.33 | 65.33 | 72.60 | 69.60 | 63.67 | 75.50 | 61.20 | 62.40 | 89.80 | 80.40 | 89.67 | 102.00 | 104.67 | 96.17 | 95.40 | 90.50 | 84.80 | 67.43 | 84.60 | 84.17 | 93.00 | 97.00 | 116.17 | 112.50 | 110.40 | 96.33 | 106.17 | 70.00 | 81.83 | 110.50 | 86.60 | 100 |
| Wn | 11.33 | 4.00 | 9.00 | 10.60 | 13.33 | 15.33 | 21.20 | 25.20 | 48.40 | 50.60 | 51.67 | 61.60 | 61.50 | 55.67 | 47.80 | 50.25 | 48.00 | 34.29 | 29.40 | 32.17 | 20.33 | 28.80 | 32.33 | 28.67 | 30.20 | 24.50 | 34.50 | 23.50 | 40.00 | 61.17 | 33.51 | 38.69 |
| Ws | 53.00 | 61.33 | 63.60 | 59.00 | 50.33 | 60.17 | 40.00 | 37.20 | 41.40 | 29.80 | 38.00 | 40.40 | 43.17 | 40.50 | 47.60 | 40.25 | 36.80 | 33.14 | 55.20 | 52.00 | 72.67 | 68.20 | 83.83 | 83.83 | 80.20 | 71.83 | 71.67 | 46.50 | 41.83 | 49.33 | 53.09 | 61.31 |
| n | 4.00 | 3.17 | 3.20 | 3.00 | 3.00 | 3.00 | 3.00 | 3.20 | 5.00 | 4.60 | 5.00 | 5.20 | 4.50 | 4.33 | 6.00 | 5.50 | 4.60 | 4.43 | 6.20 | 6.67 | 6.17 | 6.60 | 7.17 | 8.00 | 8.40 | 7.50 | 7.67 | 4.67 | 5.50 | 7.17 | 5.21 | 100 |
| A | 0.67 | 0.67 | 0.80 | 0.20 | 0.33 | 0.83 | 1.00 | 0.60 | 1.00 | 1.00 | 2.33 | 1.00 | 0.33 | 0.17 | 0.60 | 0.75 | 0.40 | 0.43 | 1.80 | 1.17 | 1.33 | 1.40 | 0.83 | 0.50 | 1.40 | 1.00 | 1.67 | 0.33 | 0.67 | 0.17 | 0.85 | 16.22 |
| B | 1.83 | 0.50 | 0.40 | 0.80 | 1.00 | 0.67 | 0.20 | 0.60 | 0.80 | 1.20 | 0.33 | 1.00 | 0.33 | 0.17 | 1.00 | 1.00 | 0.40 | 0.71 | 0.60 | 1.33 | 1.33 | 1.40 | 0.67 | 1.17 | 1.60 | 1.00 | 0.83 | 0.00 | 0.17 | 0.50 | 0.78 | 15.05 |
| C | 0.83 | 0.83 | 0.40 | 0.20 | 0.33 | 0.33 | 0.00 | 0.00 | 0.80 | 1.00 | 0.67 | 2.00 | 1.33 | 1.83 | 1.40 | 0.25 | 0.20 | 1.14 | 1.40 | 1.67 | 1.67 | 0.80 | 3.17 | 2.83 | 1.40 | 1.50 | 2.33 | 1.67 | 1.67 | 3.33 | 1.23 | 23.65 |
| D | 0.67 | 1.17 | 1.40 | 0.80 | 0.17 | 0.33 | 0.40 | 1.00 | 2.00 | 0.60 | 0.00 | 0.60 | 1.33 | 2.00 | 1.60 | 1.75 | 1.60 | 0.57 | 0.40 | 0.33 | 0.83 | 1.20 | 1.17 | 1.00 | 0.80 | 0.33 | 0.17 | 0.83 | 0.67 | 0.83 | 0.89 | 16.98 |
| E | 0.00 | 0.00 | 0.20 | 0.20 | 0.33 | 0.83 | 0.80 | 0.60 | 0.20 | 0.40 | 1.00 | 0.40 | 0.67 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.17 | 0.17 | 0.00 | 0.00 | 0.21 | 4.03 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.38 |
| G | 0.00 | 0.00 | 0.00 | 0.80 | 0.50 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.20 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.29 | 0.60 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.17 | 0.33 | 0.50 | 0.67 | 0.50 | 0.19 | 3.65 |
| 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 | 0.20 | 0.17 | 0.00 | 0.00 | 0.00 | 0.17 | 1.60 | 1.00 | 0.50 | 0.33 | 0.17 | 0.00 | 0.14 | 2.64 |
| I | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.40 | 0.00 | 0.00 | 0.40 | 0.67 | 0.00 | 0.17 | 0.00 | 1.40 | 1.50 | 2.00 | 1.29 | 1.20 | 1.83 | 1.00 | 1.80 | 1.33 | 2.33 | 1.40 | 2.33 | 1.67 | 0.83 | 1.50 | 1.83 | 0.91 | 17.40 |
| x | 2.50 | 1.17 | 1.20 | 1.00 | 1.33 | 1.50 | 1.20 | 1.20 | 1.80 | 2.20 | 2.67 | 2.00 | 0.67 | 0.33 | 1.60 | 1.75 | 0.80 | 1.14 | 2.40 | 2.50 | 2.67 | 2.80 | 1.50 | 1.67 | 3.00 | 2.00 | 2.50 | 0.33 | 0.83 | 0.67 | 1.63 | 31.28 |
| r | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.33 | 0.00 | 0.00 | 0.40 | 0.80 | 0.33 | 0.20 | 0.17 | 0.00 | 0.00 | 0.00 | 0.40 | 0.14 | 0.00 | 0.50 | 0.50 | 0.40 | 0.67 | 1.00 | 0.00 | 0.17 | 0.50 | 0.00 | 0.17 | 0.17 | 0.23 | 4.48 |
| s | 1.00 | 0.17 | 0.20 | 0.60 | 0.17 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.67 | 1.40 | 1.50 | 2.17 | 3.20 | 1.75 | 2.00 | 1.29 | 2.60 | 2.33 | 1.83 | 2.20 | 3.33 | 3.33 | 2.80 | 2.50 | 2.33 | 2.17 | 1.67 | 1.83 | 1.51 | 29.05 |
| a | 0.50 | 1.83 | 1.80 | 1.40 | 1.00 | 0.17 | 0.20 | 1.00 | 2.40 | 1.20 | 0.67 | 1.40 | 1.67 | 1.83 | 1.20 | 1.50 | 0.40 | 1.29 | 0.60 | 1.00 | 1.17 | 1.20 | 1.50 | 1.67 | 1.00 | 1.83 | 1.83 | 1.83 | 2.50 | 3.67 | 1.38 | 26.37 |
| 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 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 1.40 | 0.67 | 0.50 | 0.33 | 0.33 | 0.83 | 0.17 | 3.31 |
| k | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 1.00 | 1.20 | 1.00 | 0.40 | 0.40 | 0.67 | 0.20 | 0.17 | 0.00 | 0.00 | 0.25 | 1.00 | 0.57 | 0.40 | 0.33 | 0.00 | 0.00 | 0.17 | 0.00 | 0.20 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 5.51 |
| x | 0.67 | 0.67 | 0.80 | 0.20 | 0.67 | 0.83 | 1.40 | 0.60 | 1.00 | 1.40 | 3.00 | 1.00 | 0.50 | 0.17 | 2.00 | 2.25 | 2.40 | 1.71 | 3.20 | 3.17 | 2.33 | 3.20 | 2.17 | 3.00 | 4.40 | 4.33 | 3.83 | 1.50 | 2.33 | 2.00 | 1.89 | 36.27 |
| o | 3.33 | 1.67 | 2.00 | 2.60 | 1.83 | 1.17 | 0.60 | 1.40 | 3.20 | 2.20 | 1.00 | 2.80 | 2.67 | 3.17 | 3.60 | 2.50 | 1.40 | 2.57 | 3.00 | 3.50 | 3.83 | 3.40 | 5.00 | 5.00 | 4.00 | 3.00 | 3.50 | 2.83 | 2.83 | 5.17 | 2.83 | 54.19 |
| i | 0.00 | 0.83 | 0.40 | 0.20 | 0.50 | 1.00 | 0.80 | 1.20 | 0.80 | 1.00 | 1.00 | 1.40 | 1.33 | 1.00 | 0.40 | 0.75 | 0.60 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.33 | 0.33 | 0.33 | 0.00 | 0.48 | 9.29 |
| c | 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 | 0.20 | 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 | 0.01 | 0.26 |
| CV | 27.67 | 33.00 | 37.80 | 42.80 | 37.83 | 53.83 | 66.80 | 68.80 | 65.40 | 43.40 | 53.00 | 54.80 | 82.17 | 67.33 | 66.80 | 75.25 | 79.60 | 54.14 | 68.20 | 55.83 | 44.17 | 52.60 | 74.00 | 79.50 | 117.80 | 91.33 | 73.50 | 70.00 | 68.67 | 100.00 | 63.53 | 100 |
| CVn | 3.00 | 0.67 | 1.00 | 1.60 | 2.83 | 5.83 | 17.60 | 21.00 | 30.40 | 32.00 | 39.67 | 32.40 | 43.17 | 34.83 | 24.40 | 37.00 | 48.00 | 34.14 | 27.20 | 19.17 | 6.33 | 9.40 | 8.17 | 9.17 | 7.20 | 11.50 | 19.00 | 18.83 | 26.00 | 37.50 | 20.30 | 31.95 |
| CVs | 24.67 | 32.33 | 36.80 | 41.20 | 35.00 | 48.00 | 49.20 | 47.80 | 35.00 | 11.40 | 13.33 | 22.40 | 39.00 | 32.50 | 42.40 | 38.25 | 31.60 | 20.00 | 41.00 | 36.67 | 37.83 | 43.20 | 65.83 | 70.33 | 110.60 | 79.83 | 54.50 | 51.17 | 42.67 | 62.50 | 43.23 | 68.05 |
|
