Statistics of sunspot activity
April, 2002
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 | Average | % |
W | 160 | 132 |   | 137 |   | 177 | 181 | 177 | 239 | 208 | 215 | 259 | 215 |   |   |   | 137 | 135 | 141 | 113 | 103 | 135 | 151 | 185 | 149 |   |   | 78 | 78 | 83 | 156.00 | 100 |
Wn | 103 | 88 |   | 111 |   | 140 | 120 | 89 | 135 | 102 | 103 | 108 | 97 |   |   |   | 35 | 51 | 46 | 48 | 62 | 86 | 89 | 98 | 79 |   |   | 78 | 67 | 66 | 87.00 | 55.77 |
Ws | 57 | 44 |   | 26 |   | 37 | 61 | 88 | 104 | 106 | 112 | 151 | 118 |   |   |   | 102 | 84 | 95 | 65 | 41 | 49 | 62 | 87 | 70 |   |   | 0 | 11 | 17 | 69.00 | 44.23 |
n | 6 | 7 |   | 7 |   | 9 | 10 | 9 | 12 | 11 | 11 | 11 | 10 |   |   |   | 7 | 8 | 7 | 6 | 7 | 7 | 9 | 11 | 10 |   |   | 5 | 6 | 6 | 8.35 | 100 |
A | 0 | 0 |   | 0 |   | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |   |   | 0 | 0 | 0 | 0.09 | 1.04 |
B | 0 | 0 |   | 0 |   | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |   |   |   | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |   |   | 0 | 0 | 0 | 0.09 | 1.04 |
C | 1 | 1 |   | 0 |   | 0 | 1 | 0 | 0 | 1 | 1 | 2 | 0 |   |   |   | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 2 |   |   | 0 | 0 | 1 | 0.61 | 7.29 |
D | 2 | 1 |   | 2 |   | 3 | 2 | 1 | 5 | 5 | 5 | 2 | 5 |   |   |   | 2 | 4 | 4 | 2 | 3 | 4 | 4 | 8 | 6 |   |   | 4 | 2 | 2 | 3.39 | 40.63 |
E | 2 | 2 |   | 2 |   | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 |   |   |   | 2 | 1 | 1 | 2 | 1 | 0 | 1 | 0 | 0 |   |   | 0 | 0 | 0 | 1.13 | 13.54 |
F | 1 | 1 |   | 0 |   | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |   |   |   | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   | 0 | 0 | 0 | 0.35 | 4.17 |
G | 0 | 0 |   | 0 |   | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |   |   | 1 | 1 | 0 | 0.30 | 3.65 |
H | 0 | 1 |   | 1 |   | 3 | 2 | 4 | 2 | 2 | 2 | 2 | 2 |   |   |   | 2 | 1 | 0 | 1 | 0 | 1 | 2 | 2 | 0 |   |   | 0 | 1 | 2 | 1.43 | 17.19 |
I | 0 | 1 |   | 2 |   | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |   |   |   | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 2 |   |   | 0 | 2 | 1 | 0.96 | 11.46 |
x | 0 | 0 |   | 0 |   | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |   |   |   | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |   |   | 0 | 0 | 0 | 0.17 | 2.08 |
r | 1 | 0 |   | 0 |   | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |   |   |   | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 4 |   |   | 0 | 0 | 0 | 0.39 | 4.69 |
s | 1 | 0 |   | 3 |   | 2 | 5 | 4 | 4 | 5 | 3 | 4 | 4 |   |   |   | 2 | 1 | 1 | 1 | 2 | 2 | 4 | 4 | 2 |   |   | 2 | 5 | 3 | 2.78 | 33.33 |
a | 2 | 5 |   | 2 |   | 4 | 2 | 2 | 5 | 5 | 7 | 6 | 5 |   |   |   | 4 | 5 | 5 | 4 | 4 | 4 | 3 | 6 | 4 |   |   | 2 | 1 | 3 | 3.91 | 46.88 |
h | 0 | 1 |   | 1 |   | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |   |   |   | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |   |   | 0 | 0 | 0 | 0.22 | 2.60 |
k | 2 | 1 |   | 1 |   | 1 | 3 | 3 | 2 | 0 | 0 | 0 | 1 |   |   |   | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 |   |   | 1 | 0 | 0 | 0.87 | 10.42 |
x | 0 | 2 |   | 3 |   | 3 | 3 | 5 | 4 | 3 | 3 | 3 | 3 |   |   |   | 3 | 2 | 1 | 2 | 1 | 2 | 3 | 3 | 2 |   |   | 0 | 3 | 3 | 2.48 | 29.69 |
o | 2 | 2 |   | 1 |   | 3 | 3 | 2 | 6 | 6 | 3 | 1 | 3 |   |   |   | 2 | 5 | 4 | 1 | 4 | 3 | 4 | 7 | 7 |   |   | 4 | 1 | 2 | 3.30 | 39.58 |
i | 4 | 2 |   | 3 |   | 2 | 4 | 2 | 2 | 2 | 4 | 6 | 3 |   |   |   | 1 | 0 | 1 | 3 | 2 | 2 | 2 | 1 | 1 |   |   | 0 | 1 | 1 | 2.13 | 25.52 |
c | 0 | 1 |   | 0 |   | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |   |   |   | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |   |   | 1 | 1 | 0 | 0.43 | 5.21 |
CV | 170 | 174 |   | 174 |   | 210 | 268 | 211 | 253 | 183 | 228 | 179 | 225 |   |   |   | 150 | 154 | 156 | 131 | 109 | 125 | 173 | 224 | 139 |   |   | 144 | 115 | 82 | 172.91 | 100 |
CVn | 118 | 141 |   | 157 |   | 180 | 187 | 112 | 168 | 97 | 109 | 73 | 123 |   |   |   | 42 | 55 | 48 | 36 | 59 | 76 | 123 | 138 | 96 |   |   | 144 | 105 | 60 | 106.39 | 61.53 |
CVs | 52 | 33 |   | 17 |   | 30 | 83 | 99 | 85 | 86 | 119 | 106 | 102 |   |   |   | 108 | 99 | 108 | 95 | 50 | 49 | 50 | 86 | 43 |   |   | 0 | 10 | 22 | 66.61 | 38.52 |
gr | 6 | 7 |   | 6 |   | 7 | 8 | 6 | 9 | 8 | 9 | 9 | 9 |   |   |   | 6 | 7 | 6 | 6 | 7 | 7 | 7 | 9 | 10 |   |   | 5 | 4 | 4 | 7.04 | 84.38 |
grfp | 62 | 48 |   | 41 |   | 52 | 49 | 57 | 67 | 67 | 72 | 98 | 81 |   |   |   | 42 | 39 | 38 | 36 | 19 | 38 | 31 | 43 | 33 |   |   | 22 | 12 | 13 | 46.09 | 64.71 |
grf | 38 | 14 |   | 25 |   | 33 | 30 | 27 | 49 | 28 | 31 | 49 | 33 |   |   |   | 24 | 15 | 32 | 17 | 14 | 27 | 28 | 30 | 16 |   |   | 6 | 4 | 8 | 25.13 | 35.29 |
efp | 0 | 0 |   | 1 |   | 2 | 2 | 3 | 2 | 3 | 2 | 2 | 1 |   |   |   | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 0 |   |   | 0 | 2 | 2 | 1.22 | 14.58 |
ef | 0 | 0 |   | 0 |   | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |   |   |   | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |   |   | 0 | 0 | 0 | 0.09 | 1.04 |
Cond | 2 | 5 |   | 3 |   | 2 | 3 | 3 | 1 | 3 | 3 | 1 | 2 |   |   |   | 1 | 3 | 4 | 4 | 4 | 1 | 2 | 1 | 3 |   |   | 2 | 2 | 1 | 2.43 | 51.30 |
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