Statistics of sunspot activity
February, 2000
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 | Average | % |
W |   | 63 |   | 119 | 113 |   |   | 136 |   |   |   |   | 126 |   | 153 |   | 169 | 150 |   | 124 | 136 | 138 | 124 |   |   | 181 | 216 | 196 |   | 142.93 | 100 |
Wn |   | 27 |   | 60 | 66 |   |   | 66 |   |   |   |   | 24 |   | 24 |   | 11 | 23 |   | 22 | 47 | 46 | 67 |   |   | 95 | 100 | 91 |   | 51.27 | 35.87 |
Ws |   | 36 |   | 59 | 47 |   |   | 70 |   |   |   |   | 102 |   | 129 |   | 158 | 127 |   | 102 | 89 | 92 | 57 |   |   | 86 | 116 | 105 |   | 91.67 | 64.13 |
n |   | 4 |   | 8 | 6 |   |   | 8 |   |   |   |   | 9 |   | 11 |   | 10 | 9 |   | 6 | 8 | 9 | 7 |   |   | 10 | 10 | 10 |   | 8.33 | 100 |
A |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 1 | 0 |   | 0 | 0 | 0 | 0 |   |   | 1 | 0 | 1 |   | 0.20 | 2.40 |
B |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 0 | 0 |   | 0 | 0 | 0 | 1 |   |   | 0 | 0 | 0 |   | 0.07 | 0.80 |
C |   | 1 |   | 0 | 0 |   |   | 3 |   |   |   |   | 2 |   | 1 |   | 1 | 1 |   | 1 | 0 | 1 | 1 |   |   | 0 | 3 | 3 |   | 1.20 | 14.40 |
D |   | 1 |   | 3 | 2 |   |   | 2 |   |   |   |   | 3 |   | 3 |   | 2 | 2 |   | 1 | 5 | 3 | 4 |   |   | 3 | 2 | 3 |   | 2.60 | 31.20 |
E |   | 1 |   | 1 | 2 |   |   | 1 |   |   |   |   | 1 |   | 1 |   | 3 | 1 |   | 1 | 1 | 2 | 1 |   |   | 2 | 3 | 1 |   | 1.47 | 17.60 |
F |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 0 | 0 |   | 0 | 0 | 0 | 0 |   |   | 0 | 0 | 1 |   | 0.07 | 0.80 |
G |   | 0 |   | 2 | 1 |   |   | 1 |   |   |   |   | 0 |   | 1 |   | 0 | 0 |   | 1 | 0 | 0 | 0 |   |   | 1 | 0 | 0 |   | 0.47 | 5.60 |
H |   | 1 |   | 2 | 1 |   |   | 1 |   |   |   |   | 3 |   | 3 |   | 2 | 3 |   | 2 | 2 | 1 | 0 |   |   | 0 | 0 | 0 |   | 1.40 | 16.80 |
I |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 2 |   | 1 | 2 |   | 0 | 0 | 2 | 0 |   |   | 3 | 2 | 1 |   | 0.87 | 10.40 |
x |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 1 | 0 |   | 0 | 0 | 0 | 1 |   |   | 1 | 0 | 1 |   | 0.27 | 3.20 |
r |   | 0 |   | 1 | 0 |   |   | 0 |   |   |   |   | 0 |   | 2 |   | 0 | 1 |   | 0 | 0 | 0 | 0 |   |   | 0 | 1 | 0 |   | 0.33 | 4.00 |
s |   | 3 |   | 3 | 1 |   |   | 3 |   |   |   |   | 4 |   | 4 |   | 3 | 3 |   | 2 | 2 | 3 | 1 |   |   | 4 | 2 | 2 |   | 2.67 | 32.00 |
a |   | 1 |   | 4 | 5 |   |   | 5 |   |   |   |   | 5 |   | 5 |   | 5 | 4 |   | 2 | 5 | 6 | 3 |   |   | 3 | 5 | 5 |   | 4.20 | 50.40 |
h |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 0 | 0 |   | 0 | 0 | 0 | 1 |   |   | 0 | 0 | 0 |   | 0.07 | 0.80 |
k |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 1 | 1 |   | 2 | 1 | 0 | 1 |   |   | 2 | 2 | 2 |   | 0.80 | 9.60 |
x |   | 1 |   | 2 | 1 |   |   | 1 |   |   |   |   | 3 |   | 5 |   | 4 | 5 |   | 2 | 2 | 3 | 3 |   |   | 4 | 2 | 2 |   | 2.67 | 32.00 |
o |   | 2 |   | 3 | 1 |   |   | 5 |   |   |   |   | 3 |   | 5 |   | 2 | 2 |   | 2 | 2 | 2 | 4 |   |   | 2 | 4 | 4 |   | 2.87 | 34.40 |
i |   | 1 |   | 2 | 3 |   |   | 2 |   |   |   |   | 3 |   | 1 |   | 4 | 2 |   | 2 | 4 | 4 | 0 |   |   | 2 | 2 | 2 |   | 2.27 | 27.20 |
c |   | 0 |   | 1 | 1 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 0 | 0 |   | 0 | 0 | 0 | 0 |   |   | 2 | 2 | 2 |   | 0.53 | 6.40 |
CV |   | 69 |   | 158 | 132 |   |   | 127 |   |   |   |   | 135 |   | 143 |   | 176 | 137 |   | 139 | 171 | 150 | 181 |   |   | 239 | 220 | 217 |   | 159.60 | 100 |
CVn |   | 23 |   | 87 | 68 |   |   | 53 |   |   |   |   | 21 |   | 18 |   | 10 | 17 |   | 20 | 58 | 35 | 87 |   |   | 119 | 81 | 83 |   | 52.00 | 32.58 |
CVs |   | 46 |   | 71 | 64 |   |   | 74 |   |   |   |   | 114 |   | 125 |   | 166 | 120 |   | 119 | 113 | 115 | 94 |   |   | 120 | 139 | 134 |   | 107.60 | 67.42 |
gr |   | 4 |   | 7 | 7 |   |   | 7 |   |   |   |   | 7 |   | 9 |   | 7 | 7 |   | 4 | 6 | 6 | 7 |   |   | 9 | 10 | 9 |   | 7.07 | 83.47 |
grfp |   | 19 |   | 31 | 39 |   |   | 37 |   |   |   |   | 27 |   | 31 |   | 43 | 37 |   | 47 | 41 | 40 | 34 |   |   | 66 | 86 | 72 |   | 43.33 | 73.61 |
grf |   | 4 |   | 17 | 14 |   |   | 17 |   |   |   |   | 7 |   | 10 |   | 23 | 21 |   | 15 | 13 | 5 | 20 |   |   | 14 | 30 | 23 |   | 15.53 | 26.39 |
efp |   | 0 |   | 1 | 0 |   |   | 2 |   |   |   |   | 2 |   | 2 |   | 2 | 2 |   | 2 | 2 | 3 | 0 |   |   | 0 | 0 | 0 |   | 1.20 | 14.17 |
ef |   | 0 |   | 0 | 0 |   |   | 0 |   |   |   |   | 0 |   | 0 |   | 1 | 0 |   | 0 | 0 | 0 | 0 |   |   | 1 | 0 | 1 |   | 0.20 | 2.36 |
Cond |   | 2 |   | 2 | 2 |   |   | 2 |   |   |   |   | 3 |   | 2 |   | 2 | 1-2 |   | 3-2 | 2-3 | 3 | 2-3 |   |   | 4 | 2 | 2 |   | 2.33 | 53.33 |
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