Statistics of sunspot activity
February, 1984
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 | Average | % |
| W | 125.75 | 89.00 | 67.57 | 68.40 | 85.20 | 96.00 | 95.25 | 101.00 | 140.25 | 149.00 | 162.33 | 123.67 | 103.00 | 93.50 | 89.00 | 53.00 | 50.50 | 59.60 | 59.80 | 74.40 | 94.67 | 119.17 | 157.50 | 182.40 | 133.71 | 133.60 | 97.33 | 93.25 | 87.25 | 102.93 | 100 |
| Wn | 92.25 | 61.50 | 37.71 | 37.00 | 19.20 | 16.00 | 21.75 | 17.67 | 14.25 | 14.60 | 12.33 | 8.17 | 3.67 | 7.25 | 12.60 | 8.00 | 13.00 | 29.00 | 44.80 | 65.00 | 71.17 | 73.00 | 99.50 | 117.80 | 86.57 | 74.60 | 51.17 | 39.25 | 23.75 | 40.43 | 39.28 |
| Ws | 33.50 | 27.50 | 29.86 | 31.40 | 66.00 | 80.00 | 73.50 | 83.33 | 126.00 | 134.40 | 150.00 | 115.50 | 99.33 | 86.25 | 76.40 | 45.00 | 37.50 | 30.60 | 15.00 | 9.40 | 23.50 | 46.17 | 58.00 | 64.60 | 47.14 | 59.00 | 46.17 | 54.00 | 63.50 | 62.50 | 60.72 |
| n | 6.25 | 5.25 | 4.29 | 4.80 | 5.40 | 6.20 | 5.50 | 5.67 | 5.50 | 5.60 | 6.67 | 6.67 | 6.00 | 5.50 | 6.00 | 4.00 | 3.67 | 3.40 | 2.80 | 2.80 | 3.83 | 4.83 | 4.67 | 5.60 | 4.71 | 4.80 | 3.67 | 4.25 | 4.25 | 4.92 | 100 |
| A | 0.50 | 1.00 | 0.57 | 0.20 | 0.40 | 1.20 | 0.50 | 0.33 | 0.25 | 0.60 | 1.00 | 1.33 | 2.00 | 1.25 | 1.80 | 1.83 | 2.00 | 0.40 | 0.20 | 0.60 | 0.17 | 0.00 | 0.00 | 0.00 | 0.71 | 0.60 | 0.00 | 0.00 | 0.00 | 0.67 | 13.64 |
| B | 0.50 | 0.25 | 0.29 | 0.00 | 0.40 | 0.20 | 0.00 | 0.33 | 0.25 | 0.20 | 1.00 | 1.00 | 0.67 | 1.00 | 1.20 | 0.33 | 0.17 | 1.00 | 0.80 | 0.20 | 1.00 | 0.33 | 0.50 | 0.60 | 0.00 | 0.40 | 0.50 | 1.00 | 0.50 | 0.50 | 10.25 |
| C | 0.50 | 0.25 | 0.71 | 1.40 | 1.40 | 2.20 | 1.50 | 1.00 | 1.00 | 1.40 | 0.67 | 1.00 | 0.33 | 0.75 | 1.00 | 0.17 | 0.33 | 0.00 | 0.00 | 0.00 | 0.50 | 0.33 | 0.33 | 0.80 | 0.14 | 0.00 | 0.17 | 0.25 | 0.75 | 0.65 | 13.25 |
| D | 2.25 | 2.50 | 1.43 | 1.40 | 0.80 | 1.00 | 1.50 | 2.33 | 2.00 | 1.80 | 0.67 | 0.50 | 0.00 | 0.00 | 0.00 | 0.17 | 0.67 | 0.60 | 0.20 | 0.80 | 1.17 | 3.17 | 2.67 | 3.00 | 2.86 | 2.40 | 2.67 | 2.50 | 2.50 | 1.50 | 30.54 |
| E | 1.00 | 0.25 | 0.29 | 0.20 | 0.40 | 0.40 | 0.50 | 0.00 | 0.00 | 0.00 | 1.33 | 0.83 | 1.00 | 0.50 | 0.20 | 0.17 | 0.17 | 0.80 | 0.60 | 0.20 | 0.17 | 0.17 | 0.33 | 0.60 | 0.29 | 0.60 | 0.17 | 0.25 | 0.25 | 0.40 | 8.17 |
| 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 | 0.20 | 0.80 | 0.83 | 0.67 | 0.83 | 0.60 | 0.14 | 0.00 | 0.00 | 0.25 | 0.00 | 0.15 | 3.03 |
| G | 0.25 | 0.50 | 0.29 | 0.40 | 0.40 | 0.60 | 0.50 | 0.67 | 1.00 | 0.80 | 1.00 | 1.33 | 1.00 | 1.25 | 1.00 | 0.67 | 0.33 | 0.20 | 0.60 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.40 | 0.17 | 0.00 | 0.00 | 0.48 | 9.71 |
| H | 0.00 | 0.00 | 0.14 | 0.20 | 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 | 0.40 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.05 | 1.07 |
| I | 1.25 | 0.50 | 0.57 | 1.00 | 1.60 | 0.60 | 1.00 | 1.00 | 1.00 | 0.80 | 1.00 | 0.67 | 0.67 | 0.75 | 0.80 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.29 | 0.40 | 0.00 | 0.00 | 0.00 | 0.51 | 10.33 |
| x | 1.00 | 1.25 | 0.86 | 0.20 | 0.80 | 1.40 | 0.50 | 0.67 | 0.50 | 0.80 | 2.00 | 2.33 | 2.67 | 2.25 | 3.00 | 2.17 | 2.17 | 1.40 | 1.00 | 0.80 | 1.17 | 0.33 | 0.50 | 0.60 | 0.71 | 1.00 | 0.50 | 1.00 | 0.50 | 1.17 | 23.90 |
| r | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.33 | 0.17 | 0.33 | 0.25 | 1.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.17 | 0.17 | 0.20 | 0.00 | 0.00 | 0.17 | 0.00 | 0.50 | 0.16 | 3.24 |
| s | 2.00 | 0.25 | 1.43 | 1.80 | 2.20 | 3.00 | 3.25 | 1.67 | 2.25 | 2.40 | 1.33 | 1.33 | 0.67 | 1.00 | 1.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 1.33 | 0.17 | 0.80 | 1.00 | 0.60 | 0.33 | 1.00 | 0.50 | 1.09 | 22.10 |
| a | 1.25 | 1.50 | 0.57 | 1.20 | 1.40 | 0.60 | 0.50 | 1.00 | 0.75 | 0.40 | 0.00 | 0.33 | 0.33 | 0.50 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 1.33 | 1.33 | 1.00 | 0.57 | 0.40 | 0.00 | 0.25 | 1.00 | 0.59 | 12.08 |
| h | 0.25 | 0.00 | 0.14 | 0.40 | 0.40 | 0.20 | 0.25 | 1.00 | 0.25 | 0.60 | 0.00 | 0.17 | 0.67 | 0.25 | 0.20 | 0.33 | 0.33 | 0.40 | 0.40 | 0.40 | 0.00 | 0.17 | 0.50 | 0.60 | 0.86 | 0.80 | 0.83 | 0.50 | 1.00 | 0.41 | 8.35 |
| k | 1.50 | 2.00 | 1.29 | 1.20 | 0.60 | 1.00 | 1.00 | 1.00 | 1.75 | 1.40 | 3.00 | 2.33 | 1.33 | 1.25 | 0.80 | 0.67 | 1.17 | 1.40 | 1.40 | 1.60 | 2.00 | 1.50 | 2.00 | 2.40 | 1.57 | 2.00 | 1.83 | 1.50 | 0.75 | 1.49 | 30.33 |
| x | 1.75 | 1.50 | 1.29 | 1.40 | 2.00 | 1.80 | 1.50 | 1.33 | 1.25 | 1.40 | 2.00 | 2.00 | 3.00 | 2.00 | 2.60 | 2.50 | 2.00 | 0.80 | 0.40 | 0.60 | 0.17 | 0.17 | 0.00 | 0.00 | 1.00 | 1.00 | 0.00 | 0.00 | 0.25 | 1.23 | 25.04 |
| o | 2.50 | 2.00 | 2.57 | 2.80 | 2.60 | 3.80 | 2.75 | 3.33 | 3.25 | 2.80 | 2.67 | 3.50 | 2.00 | 3.00 | 3.20 | 1.33 | 1.00 | 1.60 | 1.60 | 0.80 | 1.83 | 3.00 | 1.83 | 3.00 | 1.71 | 1.60 | 1.67 | 2.00 | 1.75 | 2.33 | 47.35 |
| i | 1.25 | 1.00 | 0.29 | 0.60 | 0.80 | 0.60 | 1.25 | 1.00 | 0.75 | 1.40 | 2.00 | 1.17 | 1.00 | 0.50 | 0.20 | 0.00 | 0.67 | 0.80 | 0.60 | 1.00 | 1.67 | 1.33 | 2.50 | 2.40 | 1.71 | 2.20 | 1.83 | 1.75 | 1.75 | 1.17 | 23.86 |
| c | 0.75 | 0.75 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.20 | 0.20 | 0.40 | 0.17 | 0.33 | 0.33 | 0.20 | 0.29 | 0.00 | 0.17 | 0.50 | 0.50 | 0.18 | 3.75 |
| CV | 145.00 | 129.75 | 95.00 | 108.20 | 90.80 | 105.80 | 115.50 | 136.00 | 137.75 | 133.00 | 155.67 | 136.83 | 111.00 | 92.50 | 68.20 | 55.33 | 68.33 | 90.00 | 86.20 | 99.20 | 102.67 | 137.00 | 152.67 | 178.00 | 149.00 | 150.80 | 137.67 | 129.25 | 123.50 | 117.95 | 100 |
| CVn | 123.50 | 116.50 | 56.14 | 54.60 | 12.40 | 21.20 | 24.50 | 14.33 | 10.25 | 9.00 | 5.00 | 2.50 | 0.33 | 1.50 | 3.20 | 2.00 | 23.17 | 48.20 | 77.00 | 98.20 | 95.17 | 89.50 | 89.83 | 106.00 | 89.43 | 94.20 | 90.50 | 80.00 | 54.25 | 51.46 | 43.63 |
| CVs | 21.50 | 13.25 | 38.86 | 53.60 | 78.40 | 84.60 | 91.00 | 121.67 | 127.50 | 124.00 | 150.67 | 134.33 | 110.67 | 91.00 | 65.00 | 53.33 | 45.17 | 41.80 | 9.20 | 1.00 | 7.50 | 47.50 | 62.83 | 72.00 | 59.57 | 56.60 | 47.17 | 49.25 | 69.25 | 66.49 | 56.37 |
|
