Statistics of sunspot activity
September, 2002
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 | 181.33 | 238.50 | 165.67 | 225.33 | 219.33 | 166.33 | 157.25 | 182.75 | 198.00 | 196.50 | 202.00 | 204.50 | 235.67 | 210.25 | 156.50 | 147.67 | 212.50 | 219.25 | 183.00 | 213.50 | 176.25 | 197.00 | 187.00 | 194.50 | 184.67 | 141.00 | 142.00 | 109.00 | 128.00 | 89.67 | 182.16 | 100 |
| Wn | 68.00 | 113.50 | 90.67 | 121.67 | 127.67 | 94.00 | 89.00 | 106.25 | 109.25 | 99.50 | 98.33 | 110.75 | 117.00 | 71.50 | 50.25 | 45.67 | 44.75 | 43.50 | 25.50 | 26.25 | 15.00 | 37.33 | 40.33 | 69.50 | 78.00 | 79.67 | 80.67 | 64.67 | 78.00 | 59.67 | 75.19 | 41.28 |
| Ws | 113.33 | 125.00 | 75.00 | 103.67 | 91.67 | 72.33 | 68.25 | 76.50 | 88.75 | 97.00 | 103.67 | 93.75 | 118.67 | 138.75 | 106.25 | 102.00 | 167.75 | 175.75 | 157.50 | 187.25 | 161.25 | 159.67 | 146.67 | 125.00 | 106.67 | 61.33 | 61.33 | 44.33 | 50.00 | 30.00 | 106.97 | 58.72 |
| n | 9.67 | 12.00 | 8.67 | 11.33 | 10.00 | 7.00 | 8.75 | 10.00 | 10.25 | 9.00 | 7.33 | 7.50 | 8.33 | 7.00 | 7.50 | 8.67 | 12.00 | 13.25 | 11.75 | 13.25 | 10.25 | 12.00 | 12.67 | 11.50 | 10.33 | 8.00 | 9.00 | 6.33 | 6.67 | 5.33 | 9.51 | 100 |
| A | 0.33 | 0.50 | 0.33 | 0.33 | 0.33 | 0.33 | 0.50 | 0.50 | 0.50 | 0.75 | 0.00 | 1.50 | 1.00 | 0.00 | 0.25 | 0.33 | 0.25 | 1.50 | 1.00 | 1.25 | 0.75 | 1.33 | 1.67 | 1.25 | 0.00 | 0.00 | 1.33 | 0.00 | 0.33 | 0.00 | 0.61 | 6.37 |
| B | 0.33 | 0.50 | 0.67 | 0.67 | 0.33 | 0.00 | 0.25 | 0.25 | 0.50 | 1.00 | 0.67 | 0.75 | 2.00 | 0.50 | 0.25 | 0.33 | 0.75 | 1.25 | 0.25 | 0.75 | 0.25 | 0.33 | 0.00 | 0.75 | 0.33 | 0.00 | 0.67 | 0.00 | 0.33 | 0.67 | 0.51 | 5.37 |
| C | 2.00 | 3.00 | 1.00 | 2.67 | 3.00 | 1.33 | 1.25 | 2.25 | 2.50 | 1.50 | 0.67 | 0.50 | 0.33 | 0.75 | 1.50 | 1.00 | 1.25 | 3.00 | 2.75 | 1.75 | 1.50 | 2.00 | 2.67 | 1.75 | 1.67 | 1.67 | 1.33 | 2.00 | 1.67 | 1.00 | 1.71 | 17.96 |
| D | 4.00 | 5.00 | 3.00 | 3.67 | 2.33 | 3.00 | 2.50 | 3.00 | 3.25 | 2.50 | 3.00 | 2.75 | 2.67 | 3.50 | 4.00 | 5.67 | 4.00 | 2.00 | 3.50 | 4.75 | 4.00 | 2.67 | 2.67 | 3.75 | 5.00 | 4.33 | 3.33 | 4.00 | 3.33 | 2.00 | 3.44 | 36.16 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.33 | 0.00 | 0.00 | 0.00 | 0.75 | 1.00 | 1.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.75 | 0.75 | 0.00 | 0.25 | 0.00 | 0.67 | 0.33 | 0.75 | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 | 0.00 | 0.32 | 3.36 |
| F | 0.67 | 1.00 | 0.67 | 1.00 | 1.00 | 0.67 | 0.25 | 0.25 | 0.75 | 0.75 | 0.67 | 0.75 | 1.00 | 0.75 | 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 | 0.33 | 0.00 | 0.36 | 3.80 |
| G | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 1.75 | 1.75 | 0.75 | 0.50 | 0.33 | 0.25 | 0.33 | 1.25 | 0.50 | 0.00 | 0.25 | 0.50 | 0.75 | 0.75 | 0.25 | 0.33 | 0.33 | 0.75 | 0.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.44 | 4.67 |
| 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 | 0.33 | 0.25 | 0.25 | 0.50 | 0.25 | 0.25 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.88 |
| I | 2.00 | 2.00 | 3.00 | 3.00 | 2.33 | 0.67 | 2.25 | 2.00 | 2.00 | 1.25 | 1.00 | 0.00 | 0.33 | 0.25 | 1.00 | 1.00 | 4.50 | 4.00 | 3.00 | 3.50 | 3.25 | 4.33 | 4.33 | 2.50 | 2.67 | 1.00 | 2.00 | 0.00 | 0.33 | 1.67 | 2.04 | 21.44 |
| x | 0.67 | 1.00 | 1.00 | 1.00 | 0.67 | 0.33 | 0.75 | 0.75 | 1.00 | 1.75 | 0.67 | 2.25 | 3.00 | 0.50 | 0.50 | 0.67 | 1.00 | 2.75 | 1.25 | 2.00 | 1.00 | 1.67 | 1.67 | 2.00 | 0.33 | 0.00 | 2.00 | 0.00 | 0.67 | 0.67 | 1.12 | 11.74 |
| r | 0.00 | 0.50 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 0.25 | 0.33 | 0.25 | 1.00 | 0.75 | 0.25 | 0.33 | 1.00 | 1.25 | 0.25 | 0.00 | 0.00 | 0.33 | 0.33 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.29 | 3.10 |
| s | 5.00 | 5.50 | 4.00 | 5.00 | 4.33 | 3.00 | 4.00 | 5.50 | 4.75 | 3.00 | 3.00 | 1.50 | 0.33 | 1.00 | 2.25 | 3.00 | 4.50 | 4.25 | 5.75 | 4.75 | 3.50 | 3.33 | 5.33 | 3.75 | 6.00 | 4.00 | 2.67 | 1.33 | 2.33 | 2.00 | 3.62 | 38.08 |
| a | 3.00 | 3.00 | 3.00 | 4.00 | 4.00 | 3.00 | 3.75 | 2.25 | 3.25 | 2.50 | 2.00 | 2.50 | 3.00 | 3.25 | 3.00 | 3.33 | 4.25 | 3.75 | 2.75 | 5.00 | 4.50 | 5.33 | 3.67 | 3.50 | 2.67 | 3.67 | 4.33 | 5.00 | 3.33 | 2.33 | 3.43 | 36.07 |
| h | 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 | 0.25 | 0.25 | 0.25 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.55 |
| k | 1.00 | 1.50 | 0.67 | 1.00 | 1.00 | 0.67 | 0.25 | 1.00 | 1.00 | 1.50 | 1.33 | 1.00 | 1.00 | 1.50 | 1.50 | 1.33 | 1.25 | 1.00 | 1.50 | 1.25 | 1.25 | 1.00 | 1.67 | 2.00 | 1.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.99 | 10.46 |
| x | 2.33 | 2.50 | 3.33 | 3.33 | 2.67 | 1.00 | 2.75 | 2.50 | 2.50 | 2.00 | 1.00 | 1.50 | 1.33 | 0.25 | 1.25 | 1.67 | 5.00 | 5.75 | 4.50 | 5.00 | 4.25 | 6.00 | 6.33 | 3.75 | 2.67 | 1.00 | 3.33 | 0.00 | 0.67 | 1.67 | 2.73 | 28.68 |
| o | 6.67 | 8.00 | 4.67 | 5.33 | 5.00 | 4.33 | 5.00 | 6.50 | 6.00 | 5.25 | 4.67 | 3.75 | 4.33 | 4.50 | 5.00 | 5.67 | 5.25 | 5.75 | 5.75 | 6.75 | 5.00 | 4.67 | 5.00 | 5.75 | 5.67 | 5.67 | 4.33 | 5.33 | 5.00 | 2.67 | 5.24 | 55.11 |
| i | 0.33 | 1.00 | 0.67 | 2.33 | 2.00 | 1.33 | 1.00 | 1.00 | 1.25 | 1.25 | 1.33 | 1.50 | 2.00 | 1.75 | 1.00 | 1.33 | 1.75 | 1.50 | 1.25 | 0.50 | 0.25 | 1.00 | 1.00 | 2.00 | 1.67 | 1.33 | 0.67 | 0.67 | 0.67 | 1.00 | 1.21 | 12.73 |
| c | 0.33 | 0.50 | 0.00 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 | 0.50 | 0.50 | 0.33 | 0.75 | 0.67 | 0.50 | 0.25 | 0.00 | 0.00 | 0.25 | 0.25 | 1.00 | 0.75 | 0.33 | 0.33 | 0.00 | 0.33 | 0.00 | 0.67 | 0.33 | 0.33 | 0.00 | 0.33 | 3.48 |
| CV | 180.00 | 241.00 | 134.67 | 188.67 | 168.00 | 144.67 | 143.00 | 179.25 | 178.75 | 169.00 | 165.67 | 144.50 | 137.67 | 165.00 | 157.50 | 178.00 | 192.75 | 172.50 | 204.50 | 223.00 | 172.75 | 174.33 | 191.67 | 204.00 | 208.00 | 150.67 | 118.33 | 110.67 | 107.67 | 68.00 | 165.81 | 100 |
| CVn | 75.00 | 90.00 | 67.33 | 111.67 | 111.00 | 89.00 | 67.00 | 85.25 | 89.25 | 82.75 | 82.33 | 70.00 | 63.00 | 51.25 | 47.50 | 49.00 | 39.00 | 29.50 | 26.00 | 23.75 | 8.00 | 16.67 | 31.00 | 81.50 | 101.67 | 91.33 | 71.00 | 66.33 | 58.33 | 43.67 | 63.97 | 38.58 |
| CVs | 105.00 | 151.00 | 67.33 | 77.00 | 57.00 | 55.67 | 76.00 | 94.00 | 89.50 | 86.25 | 83.33 | 74.50 | 74.67 | 113.75 | 110.00 | 129.00 | 153.75 | 143.00 | 178.50 | 199.25 | 164.75 | 157.67 | 160.67 | 122.50 | 106.33 | 59.33 | 47.33 | 44.33 | 49.33 | 24.33 | 101.84 | 61.42 |
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