Statistics of sunspot activity
February, 1989
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 | 164.25 | 161.60 | 198.67 | 151.83 | 122.71 | 135.67 | 146.50 | 175.00 | 195.57 | 211.50 | 251.00 | 246.71 | 237.29 | 248.40 | 204.67 | 221.83 | 229.50 | 183.14 | 181.43 | 199.50 | 174.86 | 153.67 | 137.43 | 213.29 | 216.86 | 183.33 | 159.33 | 148.80 | 187.65 | 100 |
| Wn | 36.00 | 42.00 | 75.67 | 63.00 | 60.14 | 82.33 | 92.00 | 110.17 | 126.29 | 133.00 | 154.83 | 164.00 | 148.57 | 165.20 | 124.33 | 127.67 | 136.17 | 88.43 | 87.86 | 87.83 | 75.29 | 59.33 | 60.86 | 109.00 | 112.57 | 101.33 | 80.50 | 79.40 | 99.42 | 52.98 |
| Ws | 128.25 | 119.60 | 123.00 | 88.83 | 62.57 | 53.33 | 54.50 | 64.83 | 69.29 | 78.50 | 96.17 | 82.71 | 88.71 | 83.20 | 80.33 | 94.17 | 93.33 | 94.71 | 93.57 | 111.67 | 99.57 | 94.33 | 76.57 | 104.29 | 104.29 | 82.00 | 78.83 | 69.40 | 88.23 | 47.02 |
| n | 9.00 | 10.80 | 13.83 | 10.00 | 7.86 | 7.83 | 8.33 | 9.33 | 8.57 | 8.67 | 10.33 | 10.14 | 9.71 | 9.00 | 9.00 | 10.00 | 10.50 | 8.43 | 9.00 | 9.33 | 7.57 | 6.00 | 6.43 | 9.57 | 9.86 | 9.83 | 8.83 | 9.00 | 9.17 | 100 |
| A | 0.75 | 1.60 | 4.00 | 1.50 | 0.71 | 0.33 | 1.00 | 1.00 | 1.00 | 1.17 | 2.50 | 2.00 | 2.71 | 1.80 | 1.67 | 0.83 | 0.50 | 0.57 | 0.29 | 1.33 | 1.57 | 1.00 | 0.57 | 1.29 | 1.29 | 0.83 | 1.17 | 1.20 | 1.29 | 14.09 |
| B | 0.75 | 2.00 | 2.83 | 1.67 | 1.57 | 1.00 | 0.83 | 1.33 | 0.71 | 0.67 | 1.00 | 2.00 | 2.14 | 1.60 | 1.00 | 1.17 | 1.50 | 0.00 | 0.71 | 2.17 | 1.57 | 1.00 | 2.14 | 3.00 | 1.86 | 2.33 | 2.17 | 2.20 | 1.53 | 16.72 |
| C | 2.00 | 1.60 | 2.17 | 3.83 | 2.57 | 2.17 | 3.33 | 2.00 | 0.57 | 1.00 | 1.00 | 0.86 | 0.29 | 0.20 | 0.17 | 2.17 | 3.00 | 2.86 | 3.29 | 1.50 | 1.14 | 0.83 | 0.57 | 1.29 | 2.86 | 2.50 | 2.50 | 2.00 | 1.79 | 19.57 |
| D | 2.25 | 1.20 | 1.50 | 1.00 | 1.29 | 1.50 | 1.00 | 1.50 | 3.00 | 2.83 | 3.00 | 2.29 | 1.71 | 2.00 | 2.00 | 2.33 | 2.17 | 0.57 | 0.71 | 0.83 | 1.14 | 1.00 | 1.00 | 1.29 | 1.14 | 1.67 | 1.17 | 1.20 | 1.58 | 17.25 |
| E | 1.25 | 0.60 | 0.50 | 0.00 | 0.29 | 0.00 | 0.00 | 0.17 | 0.29 | 0.17 | 0.33 | 0.14 | 0.14 | 0.00 | 0.17 | 0.00 | 0.33 | 1.00 | 0.86 | 1.33 | 1.14 | 0.83 | 1.57 | 1.86 | 1.71 | 1.17 | 0.83 | 1.20 | 0.64 | 6.96 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.33 | 1.71 | 1.86 | 2.00 | 1.67 | 1.50 | 1.17 | 0.71 | 1.00 | 1.00 | 1.00 | 1.00 | 0.14 | 0.29 | 0.43 | 0.33 | 0.00 | 0.00 | 0.80 | 8.73 |
| G | 0.00 | 0.40 | 0.50 | 0.17 | 0.00 | 0.00 | 0.00 | 0.50 | 0.86 | 0.83 | 0.50 | 1.00 | 0.86 | 1.00 | 1.17 | 1.67 | 1.00 | 1.00 | 0.29 | 0.17 | 0.00 | 0.17 | 0.29 | 0.57 | 0.43 | 0.67 | 0.83 | 0.00 | 0.53 | 5.78 |
| 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 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.20 | 0.02 | 0.21 |
| I | 2.00 | 3.40 | 2.33 | 1.83 | 1.14 | 1.83 | 1.17 | 1.83 | 1.14 | 1.00 | 0.67 | 0.14 | 0.00 | 0.40 | 1.17 | 0.33 | 0.67 | 1.71 | 1.86 | 1.00 | 0.00 | 0.17 | 0.14 | 0.00 | 0.14 | 0.17 | 0.17 | 1.00 | 0.98 | 10.68 |
| x | 1.50 | 3.60 | 6.83 | 3.17 | 2.29 | 1.33 | 1.83 | 2.33 | 1.71 | 1.83 | 3.50 | 4.00 | 4.86 | 3.40 | 2.67 | 2.00 | 2.00 | 0.57 | 1.00 | 3.50 | 3.14 | 2.00 | 2.71 | 4.29 | 3.14 | 3.17 | 3.33 | 3.40 | 2.83 | 30.81 |
| r | 1.25 | 0.40 | 1.33 | 1.17 | 0.14 | 0.83 | 1.00 | 0.83 | 1.00 | 0.83 | 1.17 | 0.57 | 0.14 | 0.60 | 0.67 | 0.33 | 0.33 | 0.71 | 0.86 | 0.67 | 0.00 | 0.17 | 0.57 | 1.29 | 0.86 | 0.50 | 1.33 | 1.20 | 0.74 | 8.08 |
| s | 3.25 | 4.60 | 4.33 | 3.17 | 3.29 | 3.50 | 2.67 | 3.17 | 1.29 | 1.33 | 1.50 | 1.29 | 0.71 | 0.60 | 1.00 | 1.67 | 2.83 | 2.43 | 4.71 | 2.33 | 1.14 | 0.17 | 0.14 | 0.29 | 1.43 | 1.33 | 1.33 | 1.00 | 2.02 | 22.00 |
| a | 3.00 | 2.20 | 1.33 | 2.00 | 1.29 | 1.17 | 1.67 | 1.50 | 2.86 | 3.33 | 2.50 | 2.00 | 0.86 | 1.40 | 2.33 | 3.83 | 3.83 | 4.14 | 2.00 | 2.00 | 1.57 | 1.83 | 1.14 | 1.71 | 2.43 | 3.50 | 2.00 | 2.40 | 2.21 | 24.08 |
| 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 | 0.43 | 0.40 | 0.33 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.06 | 0.65 |
| k | 0.00 | 0.00 | 0.00 | 0.50 | 0.86 | 1.00 | 1.17 | 1.50 | 1.71 | 1.33 | 1.67 | 2.29 | 2.71 | 2.60 | 2.00 | 2.00 | 1.50 | 0.57 | 0.43 | 0.83 | 1.71 | 1.83 | 1.86 | 2.00 | 2.00 | 1.33 | 0.50 | 1.00 | 1.32 | 14.37 |
| x | 2.75 | 5.00 | 6.33 | 3.33 | 1.86 | 2.17 | 2.17 | 2.83 | 2.14 | 2.17 | 3.17 | 2.14 | 2.71 | 2.20 | 2.83 | 1.17 | 1.33 | 2.29 | 2.14 | 2.33 | 1.57 | 1.17 | 0.71 | 1.29 | 1.43 | 1.17 | 1.33 | 2.40 | 2.29 | 24.98 |
| o | 4.25 | 5.20 | 6.67 | 6.33 | 5.14 | 4.17 | 4.83 | 5.00 | 4.14 | 4.50 | 4.67 | 5.14 | 4.00 | 4.60 | 4.33 | 7.17 | 7.33 | 4.29 | 4.71 | 4.17 | 3.43 | 2.83 | 3.86 | 6.14 | 4.71 | 6.50 | 6.17 | 5.20 | 4.98 | 54.32 |
| i | 2.00 | 0.60 | 0.83 | 0.33 | 0.43 | 0.50 | 0.33 | 1.00 | 1.86 | 1.67 | 1.83 | 2.71 | 2.57 | 1.60 | 1.33 | 1.50 | 1.67 | 1.86 | 2.14 | 2.83 | 2.57 | 2.00 | 1.86 | 2.00 | 3.71 | 2.17 | 1.33 | 1.40 | 1.67 | 18.17 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 1.00 | 1.00 | 0.50 | 0.43 | 0.33 | 0.67 | 0.14 | 0.43 | 0.60 | 0.50 | 0.17 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.23 | 2.53 |
| CV | 114.75 | 102.60 | 104.00 | 89.00 | 106.86 | 130.83 | 124.17 | 149.83 | 172.14 | 157.33 | 176.33 | 185.57 | 195.00 | 197.00 | 183.17 | 196.00 | 177.83 | 126.71 | 128.14 | 125.50 | 132.86 | 120.83 | 118.86 | 148.86 | 162.43 | 145.83 | 106.50 | 108.60 | 142.41 | 100 |
| CVn | 20.50 | 15.60 | 37.33 | 38.17 | 57.29 | 75.33 | 82.17 | 103.00 | 122.43 | 112.83 | 127.67 | 136.14 | 146.57 | 141.80 | 121.67 | 117.00 | 95.83 | 59.57 | 64.43 | 52.17 | 53.14 | 49.67 | 51.43 | 73.57 | 86.43 | 87.50 | 78.17 | 73.40 | 81.46 | 57.20 |
| CVs | 94.25 | 87.00 | 66.67 | 50.83 | 49.57 | 55.50 | 42.00 | 46.83 | 49.71 | 44.50 | 48.67 | 49.43 | 48.43 | 55.20 | 61.50 | 79.00 | 82.00 | 67.14 | 63.71 | 73.33 | 79.71 | 71.17 | 67.43 | 75.29 | 76.00 | 58.33 | 28.33 | 35.20 | 60.96 | 42.80 |
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