Statistics of sunspot activity
February, 2003
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 | 77.67 | 62.50 | 66.25 | 66.00 | 86.00 | 128.00 | 158.50 | 140.00 | 161.25 | 136.67 | 127.67 | 123.00 | 111.00 | 86.67 | 55.67 | 44.00 | 15.67 | 36.00 | 58.00 | 69.00 | 88.67 | 49.33 | 40.75 | 43.67 | 49.00 | 55.50 | 68.75 | 50.75 | 80.57 | 100 |
| Wn | 12.67 | 0.00 | 0.00 | 4.00 | 19.67 | 34.50 | 50.25 | 47.33 | 53.00 | 44.00 | 50.67 | 49.67 | 44.50 | 44.67 | 39.67 | 26.33 | 15.67 | 36.00 | 54.33 | 64.00 | 67.33 | 41.00 | 40.75 | 43.67 | 32.00 | 25.00 | 17.75 | 14.00 | 34.73 | 43.11 |
| Ws | 65.00 | 62.50 | 66.25 | 62.00 | 66.33 | 93.50 | 108.25 | 92.67 | 108.25 | 92.67 | 77.00 | 73.33 | 66.50 | 42.00 | 16.00 | 17.67 | 0.00 | 0.00 | 3.67 | 5.00 | 21.33 | 8.33 | 0.00 | 0.00 | 17.00 | 30.50 | 51.00 | 36.75 | 45.84 | 56.89 |
| n | 5.33 | 4.50 | 2.75 | 3.50 | 5.00 | 7.00 | 9.00 | 8.67 | 9.25 | 8.33 | 8.67 | 8.33 | 8.00 | 6.33 | 4.00 | 3.33 | 1.00 | 2.00 | 3.33 | 3.33 | 4.33 | 2.67 | 2.00 | 2.00 | 3.00 | 4.00 | 5.00 | 4.00 | 4.95 | 100 |
| A | 0.33 | 0.00 | 0.25 | 0.75 | 0.33 | 1.25 | 1.25 | 0.67 | 0.75 | 1.00 | 1.00 | 0.33 | 0.50 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.50 | 0.37 | 7.51 |
| B | 0.33 | 0.00 | 0.00 | 0.50 | 1.00 | 0.50 | 0.75 | 0.33 | 0.00 | 0.67 | 0.00 | 0.67 | 1.00 | 0.33 | 0.33 | 1.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.50 | 0.00 | 0.33 | 6.67 |
| C | 1.33 | 0.50 | 0.25 | 0.25 | 0.33 | 0.50 | 2.25 | 1.67 | 2.00 | 1.33 | 1.33 | 4.00 | 3.00 | 2.67 | 1.00 | 0.67 | 0.00 | 1.00 | 0.33 | 1.00 | 1.67 | 0.33 | 0.00 | 0.33 | 0.67 | 1.00 | 2.00 | 0.50 | 1.14 | 23.02 |
| D | 2.33 | 2.00 | 1.00 | 1.00 | 1.67 | 2.75 | 2.50 | 3.67 | 2.75 | 3.67 | 4.00 | 1.00 | 1.00 | 2.00 | 1.33 | 1.33 | 1.00 | 0.50 | 1.33 | 1.00 | 1.00 | 0.00 | 0.50 | 0.00 | 1.00 | 1.00 | 1.50 | 1.50 | 1.58 | 31.97 |
| E | 0.00 | 0.50 | 0.50 | 0.75 | 1.00 | 1.00 | 1.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 1.00 | 1.00 | 0.25 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.32 | 6.43 |
| F | 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 | 0.00 | 0.00 | 0.00 |
| G | 0.00 | 0.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 1.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.15 | 3.00 |
| 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 | 0.02 | 0.36 |
| I | 1.00 | 1.50 | 0.25 | 0.00 | 0.67 | 1.00 | 1.25 | 1.33 | 3.00 | 1.33 | 2.33 | 2.33 | 2.50 | 1.33 | 1.00 | 0.33 | 0.00 | 0.00 | 1.00 | 0.33 | 0.00 | 1.33 | 1.00 | 0.67 | 0.67 | 1.00 | 1.00 | 1.00 | 1.04 | 21.03 |
| x | 0.67 | 0.00 | 0.25 | 1.25 | 1.33 | 1.75 | 2.00 | 1.00 | 0.75 | 1.67 | 1.00 | 1.00 | 1.50 | 0.33 | 0.67 | 1.00 | 0.00 | 0.50 | 0.33 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.50 | 0.50 | 0.70 | 14.18 |
| r | 0.00 | 0.50 | 0.25 | 0.00 | 0.33 | 0.25 | 1.25 | 1.00 | 0.25 | 0.67 | 2.00 | 1.67 | 0.50 | 1.33 | 0.33 | 0.00 | 0.00 | 0.50 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.25 | 0.25 | 0.00 | 0.45 | 9.13 |
| s | 2.33 | 2.50 | 1.00 | 1.25 | 2.33 | 3.00 | 3.00 | 4.67 | 5.50 | 3.67 | 3.33 | 3.67 | 4.00 | 2.67 | 1.33 | 1.67 | 1.00 | 0.50 | 0.67 | 1.33 | 1.67 | 1.00 | 0.75 | 1.00 | 0.67 | 1.75 | 2.00 | 2.25 | 2.16 | 43.63 |
| a | 2.33 | 1.50 | 1.25 | 1.00 | 1.00 | 2.00 | 2.75 | 2.00 | 2.75 | 2.33 | 2.33 | 2.00 | 2.00 | 2.00 | 1.67 | 0.67 | 0.00 | 0.50 | 1.33 | 2.00 | 1.00 | 1.00 | 0.50 | 0.67 | 1.67 | 1.00 | 2.25 | 0.50 | 1.50 | 30.29 |
| 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 | 0.75 | 0.03 | 0.54 |
| k | 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 | 0.33 | 0.00 | 1.00 | 0.67 | 0.75 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 2.22 |
| x | 1.33 | 1.50 | 0.50 | 0.75 | 1.00 | 2.25 | 2.50 | 2.00 | 3.75 | 2.33 | 3.33 | 2.67 | 3.00 | 1.33 | 1.33 | 0.33 | 0.00 | 0.00 | 1.33 | 0.33 | 0.33 | 1.33 | 1.00 | 0.67 | 0.67 | 1.50 | 1.00 | 2.00 | 1.43 | 28.91 |
| o | 4.00 | 2.50 | 1.75 | 2.00 | 3.00 | 3.25 | 5.00 | 6.67 | 4.75 | 5.67 | 5.33 | 5.67 | 5.00 | 5.00 | 2.67 | 3.00 | 1.00 | 2.00 | 1.67 | 2.33 | 3.00 | 0.33 | 0.25 | 0.33 | 2.33 | 2.50 | 3.75 | 2.00 | 3.10 | 62.56 |
| i | 0.00 | 0.50 | 0.50 | 0.75 | 1.00 | 1.25 | 1.25 | 0.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 1.00 | 1.00 | 0.75 | 1.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.40 | 7.99 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.00 | 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 | 0.03 | 0.54 |
| CV | 74.00 | 74.50 | 49.00 | 51.75 | 75.33 | 106.50 | 109.25 | 133.67 | 131.25 | 113.67 | 113.00 | 77.00 | 75.00 | 75.33 | 45.33 | 44.00 | 25.00 | 20.00 | 52.00 | 56.33 | 86.33 | 54.00 | 49.00 | 41.33 | 41.33 | 40.75 | 60.75 | 77.25 | 69.74 | 100 |
| CVn | 8.67 | 0.00 | 0.00 | 6.25 | 21.67 | 24.25 | 25.50 | 49.67 | 41.25 | 30.67 | 37.00 | 28.00 | 32.50 | 32.33 | 38.67 | 30.67 | 25.00 | 20.00 | 51.67 | 52.67 | 79.00 | 48.00 | 49.00 | 41.33 | 29.00 | 23.75 | 13.75 | 37.25 | 31.34 | 44.94 |
| CVs | 65.33 | 74.50 | 49.00 | 45.50 | 53.67 | 82.25 | 83.75 | 84.00 | 90.00 | 83.00 | 76.00 | 49.00 | 42.50 | 43.00 | 6.67 | 13.33 | 0.00 | 0.00 | 0.33 | 3.67 | 7.33 | 6.00 | 0.00 | 0.00 | 12.33 | 17.00 | 47.00 | 40.00 | 38.40 | 55.06 |
|
