Statistics of sunspot activity
August, 1998
Visual indices of solar activity by author's observations
Date | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | Average | % |
W | 89 | 90 | 102 | 76 | 106 | 131 | 126 | 139 |   | 167 |   |   |   |   |   |   |   | 104 | 131 | 142 | 165 |   | 134 | 99 | 104 | 87 | 121 |   |   | 193 |   | 121.37 | 100 |
Wn | 49 | 54 | 69 | 51 | 63 | 83 | 81 | 74 |   | 75 |   |   |   |   |   |   |   | 46 | 79 | 87 | 105 |   | 100 | 75 | 81 | 76 | 110 |   |   | 130 |   | 78.32 | 64.53 |
Ws | 40 | 36 | 33 | 25 | 43 | 48 | 45 | 65 |   | 92 |   |   |   |   |   |   |   | 58 | 52 | 55 | 60 |   | 34 | 24 | 23 | 11 | 11 |   |   | 63 |   | 43.05 | 35.47 |
n | 6 | 7 | 7 | 4 | 5 | 6 | 7 | 6 |   | 6 |   |   |   |   |   |   |   | 7 | 9 | 9 | 11 |   | 7 | 5 | 6 | 5 | 5 |   |   | 8 |   | 6.63 | 100 |
A | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |   | 1 |   |   |   |   |   |   |   | 0 | 1 | 0 | 3 |   | 2 | 0 | 0 | 0 | 0 |   |   | 1 |   | 0.63 | 9.52 |
B | 1 | 1 | 1 | 0 | 0 | 1 | 2 | 1 |   | 1 |   |   |   |   |   |   |   | 0 | 0 | 2 | 1 |   | 0 | 0 | 1 | 1 | 0 |   |   | 0 |   | 0.68 | 10.32 |
C | 0 | 0 | 1 | 1 | 2 | 2 | 1 | 2 |   | 0 |   |   |   |   |   |   |   | 1 | 2 | 1 | 1 |   | 1 | 1 | 0 | 0 | 1 |   |   | 0 |   | 0.89 | 13.49 |
D | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 |   | 1 |   |   |   |   |   |   |   | 2 | 2 | 1 | 2 |   | 1 | 1 | 1 | 1 | 2 |   |   | 1 |   | 0.95 | 14.29 |
E | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   | 1 |   |   |   |   |   |   |   | 0 | 0 | 0 | 1 |   | 1 | 1 | 0 | 1 | 0 |   |   | 2 |   | 0.37 | 5.56 |
F | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 |   | 1 |   |   |   |   |   |   |   | 0 | 0 | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 |   |   | 0 |   | 0.32 | 4.76 |
G | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |   | 1 |   |   |   |   |   |   |   | 0 | 0 | 1 | 0 |   | 0 | 0 | 1 | 0 | 0 |   |   | 0 |   | 0.21 | 3.17 |
H | 3 | 4 | 2 | 1 | 2 | 2 | 2 | 0 |   | 0 |   |   |   |   |   |   |   | 2 | 3 | 3 | 2 |   | 2 | 2 | 1 | 1 | 1 |   |   | 1 |   | 1.79 | 26.98 |
I | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |   | 0 |   |   |   |   |   |   |   | 2 | 1 | 1 | 1 |   | 0 | 0 | 2 | 1 | 1 |   |   | 3 |   | 0.79 | 11.90 |
x | 2 | 2 | 2 | 0 | 0 | 1 | 2 | 2 |   | 2 |   |   |   |   |   |   |   | 0 | 1 | 2 | 4 |   | 2 | 0 | 1 | 1 | 0 |   |   | 1 |   | 1.32 | 19.84 |
r | 1 | 1 | 2 | 2 | 1 | 0 | 0 | 0 |   | 0 |   |   |   |   |   |   |   | 0 | 1 | 1 | 0 |   | 1 | 1 | 1 | 1 | 1 |   |   | 1 |   | 0.79 | 11.90 |
s | 1 | 3 | 1 | 2 | 2 | 3 | 1 | 0 |   | 1 |   |   |   |   |   |   |   | 2 | 4 | 3 | 2 |   | 3 | 2 | 1 | 1 | 2 |   |   | 2 |   | 1.89 | 28.57 |
a | 0 | 1 | 2 | 0 | 2 | 1 | 2 | 1 |   | 0 |   |   |   |   |   |   |   | 4 | 2 | 2 | 4 |   | 0 | 1 | 2 | 1 | 2 |   |   | 2 |   | 1.53 | 23.02 |
h | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |   | 0 |   |   |   |   |   |   |   | 0 | 1 | 0 | 0 |   | 0 | 0 | 0 | 0 | 0 |   |   | 0 |   | 0.16 | 2.38 |
k | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 3 |   | 3 |   |   |   |   |   |   |   | 1 | 0 | 1 | 1 |   | 1 | 1 | 1 | 1 | 0 |   |   | 2 |   | 0.95 | 14.29 |
x | 5 | 6 | 3 | 1 | 2 | 2 | 3 | 1 |   | 1 |   |   |   |   |   |   |   | 4 | 5 | 4 | 6 |   | 4 | 2 | 3 | 2 | 2 |   |   | 5 |   | 3.21 | 48.41 |
o | 1 | 1 | 4 | 2 | 2 | 1 | 2 | 4 |   | 2 |   |   |   |   |   |   |   | 2 | 4 | 4 | 3 |   | 1 | 1 | 1 | 1 | 1 |   |   | 0 |   | 1.95 | 29.37 |
i | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0 |   | 1 |   |   |   |   |   |   |   | 0 | 0 | 1 | 2 |   | 1 | 1 | 1 | 1 | 0 |   |   | 1 |   | 0.68 | 10.32 |
c | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |   | 2 |   |   |   |   |   |   |   | 1 | 0 | 0 | 0 |   | 1 | 1 | 1 | 1 | 2 |   |   | 2 |   | 0.79 | 11.90 |
CV | 94 | 44 | 59 | 58 | 66 | 100 | 127 | 155 |   | 188 |   |   |   |   |   |   |   | 116 | 122 | 109 | 128 |   | 111 | 103 | 99 | 94 | 87 |   |   | 166 |   | 106.63 | 100 |
CVn | 48 | 20 | 37 | 28 | 33 | 43 | 70 | 98 |   | 105 |   |   |   |   |   |   |   | 72 | 93 | 79 | 98 |   | 90 | 83 | 82 | 84 | 77 |   |   | 99 |   | 70.47 | 66.09 |
CVs | 46 | 24 | 22 | 30 | 33 | 57 | 57 | 57 |   | 83 |   |   |   |   |   |   |   | 44 | 29 | 30 | 30 |   | 21 | 20 | 17 | 10 | 10 |   |   | 67 |   | 36.16 | 33.91 |
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