Statistics of sunspot activity
February, 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 | Average | % |
| W | 236.33 | 208.00 | 284.00 | 266.00 | 290.00 | 205.00 | 176.33 | 200.33 | 200.25 | 182.75 | 195.00 | 171.00 | 160.25 | 182.75 | 152.33 | 136.33 | 126.67 | 89.67 | 108.50 | 132.50 | 116.00 | 134.33 | 157.75 | 167.50 | 220.25 | 221.75 | 180.67 | 175.67 | 181.35 | 100 |
| Wn | 97.67 | 85.67 | 121.67 | 95.67 | 103.33 | 81.33 | 71.00 | 115.67 | 106.50 | 71.50 | 67.75 | 76.75 | 83.75 | 88.75 | 68.00 | 60.67 | 53.33 | 30.00 | 46.00 | 37.25 | 41.50 | 33.33 | 43.75 | 50.50 | 63.75 | 75.25 | 77.33 | 84.67 | 72.58 | 40.02 |
| Ws | 138.67 | 122.33 | 162.33 | 170.33 | 186.67 | 123.67 | 105.33 | 84.67 | 93.75 | 111.25 | 127.25 | 94.25 | 76.50 | 94.00 | 84.33 | 75.67 | 73.33 | 59.67 | 62.50 | 95.25 | 74.50 | 101.00 | 114.00 | 117.00 | 156.50 | 146.50 | 103.33 | 91.00 | 108.77 | 59.98 |
| n | 8.33 | 8.67 | 13.67 | 14.00 | 16.67 | 12.33 | 11.00 | 12.67 | 12.25 | 10.25 | 11.00 | 9.00 | 9.00 | 10.00 | 8.67 | 7.33 | 6.33 | 3.33 | 4.50 | 7.00 | 7.50 | 8.00 | 9.25 | 9.25 | 11.75 | 12.00 | 9.67 | 8.67 | 9.72 | 100 |
| A | 0.33 | 0.00 | 0.33 | 1.00 | 2.33 | 1.33 | 0.67 | 1.00 | 2.25 | 1.00 | 1.25 | 0.50 | 0.00 | 2.00 | 1.33 | 1.67 | 1.33 | 0.00 | 0.00 | 1.00 | 1.50 | 1.67 | 0.75 | 0.00 | 0.50 | 0.50 | 1.00 | 1.00 | 0.94 | 9.65 |
| B | 0.00 | 0.00 | 1.00 | 1.00 | 1.33 | 0.33 | 0.67 | 0.67 | 1.00 | 0.75 | 0.00 | 0.25 | 0.50 | 0.75 | 0.33 | 0.67 | 1.33 | 0.33 | 0.50 | 0.50 | 0.75 | 0.33 | 0.50 | 0.50 | 0.25 | 0.25 | 1.00 | 0.00 | 0.55 | 5.70 |
| C | 1.67 | 2.67 | 3.00 | 1.33 | 2.67 | 4.00 | 3.33 | 2.67 | 5.00 | 3.00 | 2.00 | 3.00 | 1.75 | 0.75 | 1.33 | 1.33 | 0.67 | 0.00 | 1.00 | 0.50 | 1.25 | 1.67 | 2.75 | 2.00 | 2.25 | 2.25 | 0.33 | 1.67 | 1.99 | 20.52 |
| D | 1.33 | 2.33 | 3.33 | 5.33 | 4.67 | 4.33 | 4.00 | 5.67 | 1.75 | 1.75 | 3.25 | 0.75 | 1.50 | 1.50 | 1.67 | 0.33 | 0.00 | 0.00 | 0.50 | 1.25 | 1.00 | 2.00 | 2.75 | 3.75 | 7.25 | 7.00 | 5.00 | 4.33 | 2.80 | 28.79 |
| E | 2.00 | 1.67 | 1.33 | 1.33 | 0.67 | 0.33 | 0.33 | 0.00 | 0.00 | 1.50 | 1.25 | 1.25 | 0.25 | 0.25 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.25 | 0.75 | 0.00 | 1.00 | 1.00 | 0.57 | 5.91 |
| F | 1.00 | 1.00 | 1.00 | 1.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.75 | 1.00 | 1.67 | 1.67 | 1.33 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.75 | 0.25 | 0.00 | 0.00 | 0.00 | 0.62 | 6.34 |
| G | 0.00 | 0.33 | 0.67 | 0.33 | 1.00 | 0.33 | 0.00 | 0.00 | 0.75 | 0.25 | 0.50 | 0.50 | 0.75 | 0.50 | 0.33 | 1.33 | 0.33 | 0.67 | 0.50 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.50 | 0.67 | 0.67 | 0.40 | 4.10 |
| H | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.43 |
| I | 2.00 | 0.33 | 3.00 | 2.67 | 3.67 | 1.67 | 2.00 | 2.67 | 1.50 | 2.00 | 2.75 | 2.75 | 3.50 | 3.50 | 2.00 | 0.33 | 0.67 | 1.00 | 1.00 | 2.50 | 1.75 | 1.33 | 1.25 | 2.00 | 0.50 | 1.50 | 0.67 | 0.00 | 1.80 | 18.56 |
| x | 0.33 | 0.00 | 1.33 | 2.00 | 3.67 | 1.67 | 1.33 | 1.67 | 3.25 | 1.75 | 1.25 | 0.75 | 0.50 | 2.75 | 1.67 | 2.33 | 2.67 | 0.33 | 0.50 | 1.50 | 2.25 | 2.00 | 1.25 | 0.50 | 0.75 | 0.75 | 2.00 | 1.00 | 1.49 | 15.34 |
| r | 0.00 | 0.00 | 1.33 | 0.67 | 0.33 | 0.33 | 0.00 | 0.00 | 0.75 | 0.25 | 0.25 | 0.50 | 0.50 | 0.25 | 1.00 | 0.67 | 0.00 | 0.00 | 0.50 | 0.50 | 0.25 | 0.33 | 1.50 | 0.25 | 0.25 | 0.75 | 0.00 | 1.00 | 0.43 | 4.47 |
| s | 2.33 | 3.33 | 8.00 | 4.67 | 5.33 | 3.67 | 6.33 | 6.00 | 5.00 | 4.25 | 4.50 | 3.50 | 4.25 | 4.75 | 4.33 | 1.67 | 1.67 | 1.00 | 2.00 | 3.00 | 2.25 | 2.67 | 3.50 | 4.00 | 5.00 | 4.25 | 2.00 | 2.33 | 3.77 | 38.81 |
| a | 3.33 | 3.67 | 1.33 | 5.00 | 6.67 | 6.33 | 3.00 | 5.00 | 2.50 | 3.00 | 4.00 | 3.00 | 3.00 | 1.75 | 1.00 | 2.33 | 1.67 | 1.00 | 0.50 | 1.25 | 2.00 | 2.33 | 2.50 | 3.50 | 5.25 | 5.00 | 5.33 | 4.33 | 3.20 | 32.92 |
| h | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.05 | 0.55 |
| k | 2.33 | 1.67 | 1.67 | 1.67 | 0.67 | 0.33 | 0.33 | 0.00 | 0.50 | 1.00 | 1.00 | 1.25 | 0.75 | 0.50 | 0.33 | 0.00 | 0.00 | 1.00 | 1.00 | 0.75 | 0.75 | 0.67 | 0.50 | 1.00 | 0.50 | 1.00 | 0.33 | 0.00 | 0.77 | 7.90 |
| x | 2.33 | 0.67 | 3.33 | 3.67 | 6.00 | 3.00 | 2.67 | 3.67 | 3.75 | 3.00 | 4.00 | 3.25 | 3.75 | 5.50 | 3.67 | 2.00 | 2.00 | 1.00 | 1.00 | 3.50 | 3.50 | 3.00 | 2.00 | 2.00 | 1.00 | 2.00 | 1.67 | 1.00 | 2.78 | 28.64 |
| o | 3.00 | 5.33 | 8.00 | 8.00 | 9.67 | 8.33 | 7.67 | 9.00 | 7.50 | 5.50 | 5.50 | 4.25 | 3.75 | 3.25 | 3.67 | 3.67 | 2.33 | 1.00 | 2.00 | 2.25 | 3.00 | 4.00 | 6.25 | 5.50 | 8.25 | 8.00 | 6.00 | 5.33 | 5.36 | 55.13 |
| i | 1.33 | 1.67 | 2.00 | 2.00 | 0.67 | 1.00 | 0.67 | 0.00 | 1.00 | 1.75 | 1.25 | 1.25 | 1.50 | 0.75 | 0.67 | 1.67 | 2.00 | 1.33 | 1.00 | 0.50 | 0.50 | 0.67 | 1.00 | 1.25 | 2.00 | 2.00 | 2.00 | 2.33 | 1.28 | 13.14 |
| c | 1.67 | 1.00 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.00 | 0.50 | 0.67 | 0.00 | 0.00 | 0.00 | 0.50 | 0.75 | 0.50 | 0.33 | 0.00 | 0.50 | 0.50 | 0.00 | 0.00 | 0.00 | 0.30 | 3.09 |
| CV | 202.00 | 206.33 | 252.00 | 259.00 | 227.00 | 166.33 | 161.33 | 174.00 | 138.75 | 153.75 | 180.50 | 140.75 | 138.00 | 129.50 | 139.00 | 103.33 | 84.33 | 81.33 | 96.00 | 110.75 | 100.00 | 116.00 | 134.00 | 173.25 | 228.50 | 227.50 | 162.67 | 145.00 | 158.25 | 100 |
| CVn | 73.33 | 93.33 | 109.67 | 119.00 | 97.00 | 59.67 | 53.67 | 97.00 | 78.25 | 78.50 | 72.50 | 61.00 | 65.50 | 64.00 | 62.33 | 47.67 | 37.00 | 32.67 | 38.00 | 38.25 | 33.25 | 23.67 | 41.00 | 46.25 | 64.75 | 71.75 | 53.33 | 48.00 | 62.87 | 39.73 |
| CVs | 128.67 | 113.00 | 142.33 | 140.00 | 130.00 | 106.67 | 107.67 | 77.00 | 60.50 | 75.25 | 108.00 | 79.75 | 72.50 | 65.50 | 76.67 | 55.67 | 47.33 | 48.67 | 58.00 | 72.50 | 66.75 | 92.33 | 93.00 | 127.00 | 163.75 | 155.75 | 109.33 | 97.00 | 95.38 | 60.27 |
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