Statistics of sunspot activity
October, 2000
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 | 151.50 | 186.00 | 194.25 | 189.25 | 140.67 | 124.33 | 89.33 | 85.33 | 94.67 | 91.33 | 124.50 | 167.00 | 163.50 | 150.00 | 106.25 | 112.00 | 124.33 | 122.50 | 124.50 | 128.50 | 133.00 | 104.25 | 117.33 | 100.33 | 112.00 | 99.00 | 121.50 | 156.50 | 164.00 | 153.50 | 147.25 | 131.56 | 100 |
| Wn | 32.00 | 47.33 | 51.25 | 60.00 | 49.00 | 50.33 | 29.00 | 30.00 | 42.67 | 47.67 | 52.25 | 80.50 | 70.75 | 46.00 | 27.75 | 27.75 | 42.67 | 48.50 | 63.75 | 90.50 | 105.33 | 74.00 | 78.67 | 58.67 | 63.33 | 44.00 | 43.00 | 65.50 | 67.33 | 54.00 | 57.25 | 54.86 | 41.70 |
| Ws | 119.50 | 138.67 | 143.00 | 129.25 | 91.67 | 74.00 | 60.33 | 55.33 | 52.00 | 43.67 | 72.25 | 86.50 | 92.75 | 104.00 | 78.50 | 84.25 | 81.67 | 74.00 | 60.75 | 38.00 | 27.67 | 30.25 | 38.67 | 41.67 | 48.67 | 55.00 | 78.50 | 91.00 | 96.67 | 99.50 | 90.00 | 76.70 | 58.30 |
| n | 7.75 | 10.00 | 12.00 | 10.25 | 7.67 | 7.00 | 5.67 | 6.00 | 7.00 | 6.33 | 7.75 | 10.50 | 10.00 | 8.67 | 6.75 | 7.25 | 7.67 | 7.00 | 6.25 | 6.00 | 6.00 | 5.00 | 6.33 | 6.00 | 7.67 | 6.75 | 7.75 | 10.50 | 10.00 | 7.50 | 8.00 | 7.71 | 100 |
| A | 0.50 | 1.00 | 2.75 | 0.25 | 0.33 | 0.33 | 0.00 | 0.00 | 0.67 | 1.67 | 0.75 | 1.00 | 1.00 | 0.67 | 0.25 | 0.00 | 0.67 | 0.25 | 0.75 | 0.00 | 0.67 | 1.00 | 1.33 | 0.33 | 0.00 | 0.50 | 1.75 | 1.50 | 0.67 | 0.50 | 1.25 | 0.72 | 9.34 |
| B | 0.75 | 0.67 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 1.00 | 1.00 | 0.00 | 1.00 | 1.33 | 0.50 | 1.25 | 0.33 | 0.25 | 0.00 | 1.50 | 1.33 | 0.50 | 0.33 | 0.00 | 0.67 | 0.50 | 0.50 | 1.50 | 2.33 | 0.00 | 0.25 | 0.61 | 7.91 |
| C | 1.00 | 2.33 | 2.50 | 2.00 | 1.67 | 1.67 | 0.67 | 1.67 | 3.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.67 | 2.25 | 1.00 | 1.00 | 1.50 | 1.00 | 1.00 | 0.33 | 0.25 | 0.67 | 2.00 | 2.33 | 1.75 | 1.25 | 2.00 | 2.67 | 0.50 | 2.00 | 1.63 | 21.20 |
| D | 1.25 | 2.33 | 3.25 | 3.25 | 1.33 | 2.67 | 3.00 | 2.67 | 1.67 | 1.00 | 3.00 | 6.50 | 5.25 | 4.00 | 2.50 | 3.50 | 3.00 | 4.25 | 3.25 | 3.00 | 2.33 | 1.75 | 2.00 | 1.33 | 3.00 | 3.00 | 2.75 | 3.50 | 3.00 | 5.00 | 3.25 | 2.95 | 38.32 |
| E | 1.75 | 0.33 | 0.50 | 0.75 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.25 | 0.00 | 0.00 | 0.50 | 0.33 | 1.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.25 | 0.24 | 3.17 |
| F | 0.00 | 1.00 | 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 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.70 |
| G | 0.50 | 0.33 | 1.25 | 2.00 | 2.33 | 1.33 | 1.00 | 0.67 | 0.33 | 0.00 | 0.25 | 0.00 | 0.50 | 0.00 | 0.25 | 0.25 | 0.33 | 0.25 | 0.75 | 0.50 | 0.33 | 0.50 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 0.48 | 6.17 |
| 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 | 0.50 | 0.67 | 0.50 | 0.00 | 0.05 | 0.70 |
| I | 2.00 | 2.00 | 1.25 | 1.75 | 1.33 | 1.00 | 1.00 | 0.67 | 1.00 | 0.33 | 0.75 | 1.00 | 0.00 | 0.00 | 1.00 | 1.25 | 2.00 | 0.50 | 0.25 | 0.00 | 0.67 | 0.50 | 1.33 | 1.33 | 1.33 | 1.00 | 1.50 | 1.50 | 0.33 | 0.50 | 0.75 | 0.96 | 12.48 |
| x | 1.25 | 1.67 | 3.25 | 0.50 | 0.33 | 0.33 | 0.00 | 0.33 | 1.00 | 2.67 | 1.75 | 1.00 | 2.00 | 2.00 | 0.75 | 1.25 | 1.00 | 0.50 | 0.75 | 1.50 | 2.00 | 1.50 | 1.67 | 0.33 | 0.67 | 1.00 | 2.25 | 3.00 | 3.00 | 0.50 | 1.50 | 1.33 | 17.26 |
| r | 0.75 | 0.67 | 0.50 | 0.75 | 0.00 | 0.00 | 0.67 | 0.00 | 1.00 | 0.33 | 1.75 | 1.00 | 0.25 | 1.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.33 | 0.00 | 1.67 | 0.00 | 0.67 | 0.00 | 0.00 | 0.50 | 0.67 | 0.00 | 0.50 | 0.44 | 5.65 |
| s | 2.50 | 3.33 | 4.25 | 4.25 | 5.67 | 2.67 | 4.67 | 4.33 | 4.67 | 2.33 | 1.50 | 3.50 | 3.25 | 2.67 | 3.75 | 3.50 | 2.67 | 4.00 | 2.00 | 3.00 | 1.33 | 1.50 | 1.33 | 2.00 | 4.33 | 3.75 | 3.50 | 4.00 | 2.33 | 2.50 | 2.50 | 3.15 | 40.83 |
| a | 2.50 | 2.67 | 3.75 | 4.75 | 1.67 | 4.00 | 0.33 | 1.33 | 0.33 | 1.00 | 2.75 | 5.00 | 3.75 | 2.67 | 2.00 | 2.50 | 4.00 | 2.25 | 3.25 | 1.00 | 2.00 | 2.00 | 1.67 | 3.67 | 2.00 | 2.00 | 2.00 | 2.00 | 2.67 | 4.00 | 3.25 | 2.54 | 32.95 |
| h | 0.25 | 1.00 | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.33 | 0.00 | 0.00 | 0.09 | 1.19 |
| k | 0.50 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.33 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.50 | 0.25 | 0.16 | 2.13 |
| x | 2.50 | 3.00 | 4.00 | 2.00 | 1.67 | 1.33 | 1.00 | 0.67 | 1.67 | 2.00 | 1.50 | 2.00 | 1.00 | 0.67 | 1.25 | 1.25 | 2.67 | 0.75 | 1.00 | 0.00 | 1.33 | 1.50 | 2.67 | 1.67 | 1.33 | 1.50 | 3.25 | 3.50 | 1.67 | 1.50 | 2.00 | 1.74 | 22.52 |
| o | 3.00 | 5.00 | 6.25 | 6.00 | 4.67 | 5.33 | 4.67 | 5.33 | 5.33 | 3.33 | 4.75 | 8.00 | 8.50 | 7.33 | 4.75 | 5.00 | 4.00 | 5.00 | 4.50 | 5.00 | 3.33 | 2.00 | 3.33 | 3.33 | 6.00 | 5.00 | 3.25 | 6.00 | 7.00 | 4.50 | 4.00 | 4.95 | 64.23 |
| i | 2.00 | 1.33 | 1.75 | 1.75 | 1.33 | 0.33 | 0.00 | 0.00 | 0.00 | 1.00 | 1.50 | 0.50 | 0.50 | 0.67 | 0.75 | 1.00 | 1.00 | 1.25 | 0.75 | 1.00 | 1.33 | 1.50 | 0.33 | 1.00 | 0.33 | 0.25 | 1.00 | 0.50 | 0.67 | 1.00 | 2.00 | 0.91 | 11.85 |
| c | 0.25 | 0.67 | 0.00 | 0.50 | 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 | 0.25 | 0.50 | 0.67 | 0.50 | 0.00 | 0.11 | 1.39 |
| CV | 129.00 | 181.33 | 158.50 | 174.25 | 137.33 | 113.00 | 112.33 | 102.67 | 86.67 | 59.00 | 89.25 | 164.00 | 169.75 | 120.67 | 94.50 | 109.50 | 108.67 | 131.50 | 102.75 | 108.50 | 86.00 | 72.75 | 71.00 | 82.00 | 110.00 | 96.00 | 95.75 | 153.50 | 151.33 | 152.50 | 118.25 | 117.49 | 100 |
| CVn | 22.25 | 31.33 | 46.25 | 60.50 | 53.00 | 47.00 | 50.67 | 36.67 | 25.33 | 23.00 | 27.50 | 68.00 | 68.00 | 42.33 | 32.00 | 32.25 | 32.67 | 59.75 | 55.25 | 73.00 | 64.33 | 46.00 | 44.33 | 52.33 | 49.00 | 29.00 | 22.75 | 48.50 | 56.00 | 61.50 | 54.00 | 45.63 | 38.84 |
| CVs | 106.75 | 150.00 | 112.25 | 113.75 | 84.33 | 66.00 | 61.67 | 66.00 | 61.33 | 36.00 | 61.75 | 96.00 | 101.75 | 78.33 | 62.50 | 77.25 | 76.00 | 71.75 | 47.50 | 35.50 | 21.67 | 26.75 | 26.67 | 29.67 | 61.00 | 67.00 | 73.00 | 105.00 | 95.33 | 91.00 | 64.25 | 71.86 | 61.16 |
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