Statistics of sunspot activity
June, 1988
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 | Average | % |
| W | 103.33 | 100.00 | 104.57 | 115.14 | 133.71 | 182.00 | 166.00 | 199.00 | 200.00 | 157.00 | 116.57 | 85.00 | 60.29 | 58.83 | 81.17 | 102.71 | 104.57 | 70.75 | 81.43 | 96.71 | 114.60 | 101.29 | 105.86 | 102.29 | 108.33 | 128.60 | 134.86 | 140.00 | 134.57 | 159.00 | 118.27 | 100 |
| Wn | 56.67 | 56.80 | 68.57 | 80.86 | 82.00 | 100.50 | 88.71 | 97.00 | 103.33 | 75.71 | 55.29 | 38.00 | 26.43 | 32.17 | 33.83 | 60.00 | 75.29 | 46.88 | 42.86 | 29.71 | 33.40 | 28.57 | 28.43 | 33.71 | 35.00 | 50.20 | 48.43 | 40.29 | 53.86 | 68.00 | 55.68 | 47.08 |
| Ws | 46.67 | 43.20 | 36.00 | 34.29 | 51.71 | 81.50 | 77.29 | 102.00 | 96.67 | 81.29 | 61.29 | 47.00 | 33.86 | 26.67 | 47.33 | 42.71 | 29.29 | 23.88 | 38.57 | 67.00 | 81.20 | 72.71 | 77.43 | 68.57 | 73.33 | 78.40 | 86.43 | 99.71 | 80.71 | 91.00 | 62.59 | 52.92 |
| n | 5.00 | 4.40 | 5.00 | 5.00 | 6.29 | 8.83 | 8.29 | 8.60 | 9.83 | 8.00 | 5.71 | 3.88 | 3.00 | 3.50 | 5.67 | 6.43 | 6.43 | 4.25 | 5.43 | 5.57 | 5.80 | 5.43 | 6.29 | 6.57 | 7.33 | 8.20 | 6.86 | 5.43 | 5.57 | 5.29 | 6.06 | 100 |
| A | 1.00 | 0.40 | 0.71 | 0.14 | 0.14 | 0.67 | 1.00 | 0.00 | 0.33 | 0.57 | 0.00 | 0.88 | 0.86 | 0.17 | 1.33 | 1.71 | 1.57 | 0.38 | 0.29 | 1.43 | 1.00 | 0.71 | 0.57 | 0.14 | 1.00 | 1.00 | 0.43 | 0.14 | 0.57 | 0.57 | 0.66 | 10.84 |
| B | 0.00 | 0.00 | 0.29 | 0.14 | 0.43 | 1.17 | 1.14 | 0.60 | 1.83 | 0.71 | 0.71 | 0.50 | 0.14 | 0.00 | 1.00 | 1.57 | 1.71 | 0.25 | 1.00 | 1.14 | 0.60 | 0.29 | 0.43 | 1.00 | 2.00 | 1.80 | 0.71 | 0.29 | 0.57 | 0.43 | 0.75 | 12.35 |
| C | 0.17 | 0.20 | 0.57 | 1.71 | 3.14 | 2.67 | 1.86 | 3.40 | 2.50 | 2.71 | 2.29 | 1.13 | 1.14 | 1.33 | 0.67 | 0.86 | 0.71 | 0.63 | 1.14 | 0.00 | 0.60 | 0.71 | 1.00 | 0.43 | 0.33 | 0.60 | 1.14 | 0.71 | 0.14 | 0.29 | 1.16 | 19.13 |
| D | 0.50 | 1.60 | 1.14 | 0.86 | 1.14 | 1.33 | 1.57 | 1.20 | 2.17 | 1.14 | 0.14 | 0.63 | 0.86 | 0.83 | 1.50 | 1.71 | 1.29 | 1.38 | 0.86 | 0.43 | 1.00 | 1.29 | 0.57 | 0.71 | 0.50 | 0.60 | 1.00 | 1.71 | 0.14 | 0.00 | 0.99 | 16.39 |
| E | 0.83 | 1.00 | 0.71 | 0.71 | 0.29 | 1.33 | 1.00 | 1.20 | 1.17 | 1.00 | 0.57 | 0.38 | 0.00 | 0.17 | 0.00 | 0.14 | 0.14 | 0.13 | 0.14 | 0.29 | 0.80 | 0.71 | 0.86 | 0.57 | 1.00 | 0.60 | 0.14 | 0.14 | 1.14 | 0.86 | 0.60 | 9.91 |
| F | 0.50 | 0.00 | 0.00 | 0.14 | 0.71 | 0.50 | 0.00 | 0.20 | 0.00 | 0.00 | 0.29 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 1.00 | 0.86 | 0.86 | 0.86 | 1.14 | 0.25 | 4.18 |
| G | 1.83 | 1.20 | 1.43 | 0.71 | 0.43 | 0.67 | 0.43 | 0.40 | 0.33 | 0.29 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.57 | 0.57 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.32 | 5.29 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.57 | 1.00 | 0.83 | 1.00 | 0.57 | 0.00 | 0.00 | 0.50 | 0.17 | 0.00 | 0.29 | 0.25 | 0.43 | 0.43 | 0.20 | 0.29 | 0.14 | 0.00 | 0.50 | 0.20 | 0.14 | 0.29 | 0.29 | 0.57 | 0.29 | 4.85 |
| I | 0.17 | 0.00 | 0.14 | 0.57 | 0.00 | 0.33 | 0.71 | 0.60 | 0.67 | 0.57 | 1.00 | 0.13 | 0.00 | 0.50 | 1.00 | 0.43 | 0.57 | 1.25 | 1.57 | 1.57 | 1.60 | 1.43 | 2.14 | 3.00 | 1.67 | 2.40 | 2.43 | 1.29 | 1.86 | 1.43 | 1.03 | 17.06 |
| x | 1.00 | 0.40 | 1.00 | 0.29 | 0.57 | 1.83 | 2.14 | 0.60 | 2.17 | 1.29 | 0.71 | 1.38 | 1.00 | 0.17 | 2.33 | 3.29 | 3.29 | 0.63 | 1.29 | 2.57 | 1.60 | 1.00 | 1.00 | 1.14 | 3.00 | 2.80 | 1.14 | 0.43 | 1.14 | 1.00 | 1.41 | 23.20 |
| r | 0.00 | 0.00 | 0.00 | 0.29 | 0.57 | 0.17 | 0.29 | 0.60 | 0.00 | 0.14 | 0.14 | 0.50 | 0.00 | 0.17 | 0.00 | 0.14 | 0.29 | 0.50 | 0.29 | 0.00 | 0.80 | 0.43 | 0.57 | 0.43 | 0.33 | 0.40 | 0.14 | 0.43 | 0.14 | 0.14 | 0.26 | 4.34 |
| s | 1.00 | 0.40 | 1.43 | 2.29 | 1.00 | 2.33 | 2.57 | 0.80 | 2.33 | 2.29 | 1.71 | 1.63 | 1.71 | 2.17 | 1.50 | 2.00 | 1.14 | 1.38 | 1.57 | 1.29 | 1.20 | 1.57 | 2.00 | 2.86 | 1.50 | 2.00 | 2.86 | 1.29 | 1.71 | 1.14 | 1.69 | 27.86 |
| a | 2.00 | 2.00 | 1.14 | 1.29 | 2.43 | 2.83 | 2.14 | 5.40 | 4.17 | 3.14 | 2.57 | 0.38 | 0.29 | 0.50 | 1.50 | 0.43 | 0.43 | 0.63 | 0.86 | 0.29 | 1.00 | 1.14 | 1.57 | 1.14 | 0.67 | 0.80 | 1.57 | 2.00 | 1.14 | 0.71 | 1.54 | 25.38 |
| h | 0.83 | 1.00 | 1.00 | 0.71 | 1.57 | 1.50 | 0.86 | 1.00 | 0.83 | 0.86 | 0.57 | 0.00 | 0.00 | 0.33 | 0.33 | 0.29 | 1.14 | 0.88 | 1.00 | 0.86 | 1.00 | 0.29 | 0.14 | 0.00 | 0.50 | 0.40 | 0.00 | 0.14 | 0.29 | 0.57 | 0.63 | 10.39 |
| k | 0.17 | 0.60 | 0.43 | 0.14 | 0.14 | 0.17 | 0.29 | 0.20 | 0.33 | 0.29 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.29 | 0.14 | 0.25 | 0.43 | 0.57 | 0.20 | 1.00 | 1.00 | 1.00 | 1.33 | 1.80 | 1.14 | 1.14 | 1.14 | 1.71 | 0.54 | 8.84 |
| x | 1.17 | 0.40 | 0.86 | 0.71 | 0.14 | 1.17 | 2.29 | 1.60 | 1.83 | 2.14 | 1.57 | 1.00 | 0.86 | 1.17 | 2.50 | 2.14 | 2.43 | 1.88 | 2.29 | 3.43 | 2.80 | 2.43 | 2.86 | 3.14 | 3.17 | 3.60 | 3.00 | 1.71 | 2.71 | 2.57 | 1.99 | 32.75 |
| o | 2.33 | 2.60 | 3.14 | 3.43 | 4.00 | 4.50 | 3.00 | 5.00 | 6.50 | 4.57 | 3.29 | 1.50 | 1.29 | 2.00 | 2.67 | 3.43 | 3.00 | 1.38 | 2.71 | 1.43 | 1.60 | 2.00 | 2.43 | 2.43 | 3.00 | 2.60 | 2.57 | 2.00 | 0.86 | 0.71 | 2.73 | 45.07 |
| i | 1.50 | 1.40 | 1.00 | 0.86 | 2.14 | 3.17 | 3.00 | 1.80 | 1.33 | 0.86 | 0.86 | 1.38 | 0.86 | 0.33 | 0.50 | 0.86 | 1.00 | 1.00 | 0.43 | 0.71 | 1.40 | 0.57 | 0.29 | 0.14 | 0.17 | 0.00 | 0.57 | 0.86 | 1.00 | 0.71 | 1.02 | 16.87 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.17 | 0.43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.71 | 0.86 | 1.00 | 2.00 | 0.71 | 0.86 | 1.00 | 1.29 | 0.32 | 5.31 |
| CV | 115.50 | 127.60 | 124.71 | 104.71 | 138.14 | 173.17 | 138.14 | 145.80 | 159.67 | 134.00 | 81.14 | 45.75 | 35.57 | 62.50 | 62.17 | 76.00 | 90.86 | 83.75 | 91.29 | 84.71 | 93.20 | 102.29 | 108.57 | 109.29 | 125.00 | 155.40 | 116.57 | 119.71 | 117.57 | 139.43 | 108.74 | 100 |
| CVn | 73.67 | 73.40 | 72.57 | 79.86 | 81.29 | 101.17 | 73.43 | 83.60 | 93.67 | 88.00 | 52.29 | 23.63 | 24.00 | 36.83 | 33.33 | 34.43 | 41.71 | 37.25 | 33.71 | 24.14 | 27.80 | 38.43 | 36.43 | 33.29 | 29.00 | 30.20 | 41.00 | 41.00 | 46.86 | 71.29 | 51.91 | 47.74 |
| CVs | 41.83 | 54.20 | 52.14 | 24.86 | 56.86 | 72.00 | 64.71 | 62.20 | 66.00 | 46.00 | 28.86 | 22.13 | 11.57 | 25.67 | 28.83 | 41.57 | 49.14 | 46.50 | 57.57 | 60.57 | 65.40 | 63.86 | 72.14 | 76.00 | 96.00 | 125.20 | 75.57 | 78.71 | 70.71 | 68.14 | 56.83 | 52.26 |
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