Statistics of sunspot activity
January, 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 | 31 | Average | % |
| W | 218.25 | 222.33 | 207.00 | 235.00 | 176.67 | 135.00 | 128.00 | 142.75 | 158.00 | 182.67 | 189.50 | 175.67 | 172.25 | 192.00 | 109.25 | 132.67 | 123.33 | 137.50 | 150.50 | 183.50 | 191.25 | 178.25 | 194.25 | 162.00 | 163.33 | 170.75 | 160.25 | 185.67 | 205.67 | 229.50 | 220.33 | 175.26 | 100 |
| Wn | 96.00 | 91.67 | 77.50 | 76.00 | 64.33 | 57.00 | 56.75 | 63.75 | 75.00 | 78.67 | 79.75 | 72.33 | 71.00 | 80.33 | 53.25 | 58.00 | 55.33 | 66.50 | 86.75 | 95.75 | 97.75 | 81.50 | 77.25 | 61.33 | 72.00 | 83.25 | 77.00 | 89.33 | 96.00 | 85.00 | 100.33 | 76.66 | 43.74 |
| Ws | 122.25 | 130.67 | 129.50 | 159.00 | 112.33 | 78.00 | 71.25 | 79.00 | 83.00 | 104.00 | 109.75 | 103.33 | 101.25 | 111.67 | 56.00 | 74.67 | 68.00 | 71.00 | 63.75 | 87.75 | 93.50 | 96.75 | 117.00 | 100.67 | 91.33 | 87.50 | 83.25 | 96.33 | 109.67 | 144.50 | 120.00 | 98.60 | 56.26 |
| n | 12.25 | 12.00 | 11.75 | 12.67 | 10.33 | 8.50 | 7.75 | 9.00 | 8.67 | 8.67 | 10.25 | 10.33 | 9.75 | 11.33 | 7.00 | 8.33 | 8.00 | 8.50 | 9.75 | 12.25 | 11.75 | 11.75 | 13.25 | 11.00 | 10.67 | 9.25 | 8.50 | 10.67 | 10.00 | 11.00 | 9.00 | 10.13 | 100 |
| A | 0.75 | 1.00 | 0.25 | 0.33 | 0.00 | 2.50 | 1.50 | 1.00 | 0.00 | 0.00 | 0.25 | 0.33 | 0.75 | 1.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.25 | 1.25 | 0.25 | 1.25 | 1.00 | 0.00 | 0.67 | 0.50 | 0.50 | 1.00 | 1.00 | 0.00 | 1.00 | 0.60 | 5.95 |
| B | 1.50 | 0.67 | 0.75 | 1.00 | 0.00 | 0.25 | 1.50 | 0.25 | 0.33 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.33 | 0.75 | 0.75 | 0.75 | 0.75 | 0.50 | 0.50 | 1.00 | 1.00 | 0.75 | 0.25 | 0.33 | 0.00 | 1.50 | 1.00 | 0.55 | 5.42 |
| C | 1.75 | 2.33 | 2.50 | 3.00 | 2.00 | 0.75 | 1.25 | 1.75 | 1.00 | 2.67 | 2.00 | 0.67 | 1.00 | 1.00 | 0.25 | 0.33 | 2.67 | 2.25 | 2.50 | 3.50 | 3.50 | 3.00 | 3.25 | 3.00 | 4.00 | 2.50 | 3.00 | 1.67 | 0.67 | 2.50 | 2.00 | 2.07 | 20.47 |
| D | 4.00 | 5.33 | 3.25 | 2.33 | 4.00 | 1.50 | 1.00 | 1.50 | 4.00 | 2.33 | 2.25 | 1.33 | 0.25 | 2.33 | 2.25 | 4.33 | 3.00 | 2.50 | 4.00 | 4.50 | 5.00 | 3.25 | 3.25 | 3.00 | 3.67 | 4.00 | 3.75 | 4.33 | 5.00 | 2.00 | 2.00 | 3.07 | 30.34 |
| E | 1.25 | 1.00 | 0.75 | 0.33 | 0.00 | 0.25 | 0.50 | 0.00 | 1.00 | 1.33 | 1.25 | 1.67 | 0.50 | 1.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.50 | 0.00 | 0.00 | 0.25 | 0.75 | 1.33 | 1.33 | 1.50 | 1.00 | 0.59 | 5.87 |
| F | 0.50 | 0.33 | 0.25 | 0.67 | 1.00 | 0.75 | 0.50 | 0.00 | 0.00 | 0.33 | 0.50 | 0.67 | 1.00 | 1.33 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.50 | 1.00 | 0.35 | 3.42 |
| G | 0.25 | 0.33 | 0.75 | 0.67 | 0.00 | 0.00 | 0.25 | 0.75 | 0.67 | 0.33 | 0.50 | 1.00 | 2.50 | 0.33 | 0.75 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.25 | 0.50 | 1.00 | 0.00 | 0.50 | 0.25 | 0.67 | 0.00 | 0.50 | 1.00 | 0.48 | 4.73 |
| 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 | 0.25 | 1.00 | 0.50 | 0.67 | 0.67 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.13 | 1.30 |
| I | 2.25 | 1.00 | 3.25 | 4.33 | 3.33 | 2.50 | 1.25 | 3.75 | 1.67 | 1.67 | 3.50 | 4.33 | 3.50 | 3.00 | 2.25 | 2.00 | 1.33 | 2.50 | 2.00 | 2.25 | 1.75 | 3.25 | 4.25 | 3.00 | 1.33 | 0.75 | 0.00 | 1.33 | 1.33 | 2.00 | 0.00 | 2.28 | 22.51 |
| x | 2.25 | 1.67 | 1.00 | 1.33 | 0.00 | 2.75 | 3.00 | 1.25 | 0.33 | 0.00 | 0.25 | 0.67 | 0.75 | 1.00 | 0.25 | 0.33 | 0.33 | 0.75 | 1.00 | 2.00 | 1.00 | 1.75 | 1.50 | 1.00 | 1.67 | 1.25 | 0.75 | 1.33 | 1.00 | 1.50 | 2.00 | 1.15 | 11.36 |
| r | 0.00 | 0.00 | 1.00 | 0.33 | 0.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.25 | 0.25 | 0.75 | 0.75 | 0.00 | 1.00 | 1.00 | 0.00 | 0.00 | 0.25 | 0.00 | 1.00 | 0.00 | 0.00 | 0.25 | 2.44 |
| s | 5.50 | 6.67 | 6.25 | 7.00 | 8.67 | 2.75 | 2.75 | 5.25 | 3.67 | 5.33 | 4.25 | 5.33 | 4.00 | 5.00 | 2.75 | 2.33 | 3.00 | 3.50 | 4.00 | 4.25 | 5.75 | 6.50 | 5.50 | 4.67 | 2.33 | 3.25 | 2.75 | 5.00 | 4.00 | 5.50 | 2.67 | 4.52 | 44.65 |
| a | 3.25 | 3.33 | 3.00 | 3.67 | 1.00 | 2.75 | 1.75 | 2.50 | 4.67 | 2.67 | 4.50 | 3.33 | 3.25 | 2.33 | 2.50 | 4.33 | 2.67 | 3.00 | 3.75 | 4.00 | 3.00 | 2.25 | 4.25 | 3.33 | 5.67 | 3.50 | 3.50 | 1.67 | 1.33 | 2.00 | 1.67 | 3.05 | 30.08 |
| h | 0.75 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.25 | 0.67 | 0.00 | 0.00 | 0.33 | 0.00 | 0.25 | 0.25 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.50 | 0.00 | 0.15 | 1.51 |
| k | 0.50 | 0.33 | 0.25 | 0.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 1.00 | 1.00 | 1.50 | 2.33 | 1.50 | 1.33 | 1.33 | 1.00 | 0.50 | 1.00 | 0.75 | 1.25 | 1.00 | 1.00 | 1.00 | 1.25 | 1.25 | 2.67 | 2.00 | 1.50 | 2.67 | 1.01 | 9.95 |
| x | 3.00 | 2.00 | 3.50 | 4.67 | 3.33 | 5.00 | 2.75 | 4.75 | 1.67 | 1.67 | 3.75 | 4.67 | 4.50 | 5.00 | 2.75 | 3.00 | 2.00 | 3.00 | 2.25 | 3.50 | 2.00 | 4.50 | 5.25 | 3.00 | 2.00 | 1.25 | 0.50 | 2.33 | 2.33 | 2.50 | 1.00 | 3.01 | 29.76 |
| o | 6.75 | 8.33 | 7.00 | 7.00 | 5.67 | 2.50 | 4.00 | 3.75 | 5.67 | 5.33 | 4.50 | 3.33 | 3.75 | 3.33 | 3.25 | 5.00 | 5.67 | 5.50 | 7.50 | 8.75 | 9.25 | 6.50 | 6.75 | 7.33 | 8.33 | 6.75 | 7.00 | 6.67 | 5.67 | 6.50 | 6.00 | 5.91 | 58.40 |
| i | 2.50 | 1.33 | 1.25 | 1.00 | 1.33 | 1.00 | 1.00 | 0.50 | 1.00 | 1.00 | 1.75 | 2.00 | 1.25 | 2.33 | 1.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.50 | 0.75 | 1.25 | 0.33 | 0.33 | 1.25 | 0.75 | 0.67 | 2.00 | 0.50 | 0.00 | 0.94 | 9.32 |
| c | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 0.25 | 0.33 | 0.25 | 0.67 | 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 | 1.00 | 0.00 | 1.50 | 2.00 | 0.26 | 2.52 |
| CV | 216.25 | 209.00 | 179.75 | 172.00 | 193.33 | 87.00 | 79.75 | 104.25 | 153.67 | 169.67 | 174.75 | 183.33 | 185.75 | 256.00 | 146.25 | 164.33 | 152.00 | 129.25 | 155.75 | 184.50 | 208.50 | 176.25 | 184.50 | 169.33 | 148.67 | 170.75 | 165.00 | 247.67 | 238.33 | 222.00 | 219.00 | 175.70 | 100 |
| CVn | 100.50 | 90.67 | 67.50 | 61.33 | 64.33 | 31.25 | 34.25 | 48.50 | 67.00 | 61.67 | 91.00 | 103.33 | 108.00 | 140.00 | 68.50 | 65.33 | 66.67 | 58.50 | 75.25 | 72.75 | 75.75 | 69.25 | 68.50 | 46.33 | 66.67 | 69.00 | 60.00 | 94.67 | 84.33 | 77.50 | 82.67 | 73.26 | 41.70 |
| CVs | 115.75 | 118.33 | 112.25 | 110.67 | 129.00 | 55.75 | 45.50 | 55.75 | 86.67 | 108.00 | 83.75 | 80.00 | 77.75 | 116.00 | 77.75 | 99.00 | 85.33 | 70.75 | 80.50 | 111.75 | 132.75 | 107.00 | 116.00 | 123.00 | 82.00 | 101.75 | 105.00 | 153.00 | 154.00 | 144.50 | 136.33 | 102.44 | 58.30 |
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