The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2001 - October, 2001

Statistics of sunspot activity

October, 2001

Visual indices of solar activity by author's observations

Date01020304050607080910111213141516171819202122232425262728293031Average%
W 185      71                   175  143.67100
Wn 107      13                   106  75.3352.44
Ws 78      58                   69  68.3347.56
n 11      5                   8  8.00100
A 0      0                   0  0.000.00
B 0      0                   0  0.000.00
C 1      2                   0  1.0012.50
D 4      1                   5  3.3341.67
E 1      0                   0  0.334.17
F 0      0                   0  0.000.00
G 0      0                   0  0.000.00
H 1      0                   0  0.334.17
I 4      2                   3  3.0037.50
x 0      0                   0  0.000.00
r 3      0                   2  1.6720.83
s 5      3                   1  3.0037.50
a 2      2                   2  2.0025.00
h 0      0                   1  0.334.17
k 1      0                   2  1.0012.50
x 5      2                   3  3.3341.67
o 1      3                   2  2.0025.00
i 3      0                   2  1.6720.83
c 2      0                   1  1.0012.50
CV 203      58                   206  155.67100
CVn 82      11                   112  68.3343.90
CVs 121      47                   94  87.3356.10
gr 10      4                   7  7.0087.50
grfp 58      13                   58  43.0068.62
grf 16      7                   36  19.6731.38
efp 1      1                   1  1.0012.50
ef 0      0                   0  0.000.00
Cond 2      2                   2  2.0060.00