May, 1999
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 |   | 86 | 112 |   |   | 92 | 148 | 188 | 190 |   |   |   |   |   |   |   |   |   | 109 |   | 106 | 91 | 76 | 81 |   | 122 |   | 93 | 79 |   | 102 | 111.67 | 100 |
Wn |   | 74 | 96 |   |   | 67 | 107 | 133 | 134 |   |   |   |   |   |   |   |   |   | 43 |   | 37 | 25 | 27 | 36 |   | 78 |   | 64 | 50 |   | 60 | 68.73 | 61.55 |
Ws |   | 12 | 16 |   |   | 25 | 41 | 55 | 56 |   |   |   |   |   |   |   |   |   | 66 |   | 69 | 66 | 49 | 45 |   | 44 |   | 29 | 29 |   | 42 | 42.93 | 38.45 |
n |   | 5 | 6 |   |   | 7 | 10 | 11 | 11 |   |   |   |   |   |   |   |   |   | 7 |   | 7 | 6 | 5 | 6 |   | 9 |   | 6 | 5 |   | 5 | 7.07 | 100 |
A |   | 0 | 0 |   |   | 0 | 0 | 0 | 0 |   |   |   |   |   |   |   |   |   | 0 |   | 0 | 0 | 0 | 0 |   | 2 |   | 0 | 0 |   | 0 | 0.13 | 1.89 |
B |   | 0 | 0 |   |   | 0 | 0 | 0 | 1 |   |   |   |   |   |   |   |   |   | 0 |   | 0 | 0 | 0 | 0 |   | 0 |   | 0 | 0 |   | 0 | 0.07 | 0.94 |
C |   | 0 | 1 |   |   | 2 | 3 | 2 | 2 |   |   |   |   |   |   |   |   |   | 2 |   | 1 | 1 | 2 | 2 |   | 2 |   | 0 | 2 |   | 0 | 1.47 | 20.75 |
D |   | 2 | 1 |   |   | 2 | 4 | 7 | 4 |   |   |   |   |   |   |   |   |   | 2 |   | 3 | 1 | 0 | 0 |   | 2 |   | 2 | 1 |   | 3 | 2.27 | 32.08 |
E |   | 1 | 1 |   |   | 0 | 1 | 1 | 2 |   |   |   |   |   |   |   |   |   | 0 |   | 1 | 0 | 1 | 0 |   | 1 |   | 1 | 1 |   | 1 | 0.80 | 11.32 |
F |   | 1 | 1 |   |   | 0 | 0 | 0 | 0 |   |   |   |   |   |   |   |   |   | 0 |   | 0 | 0 | 0 | 0 |   | 0 |   | 0 | 0 |   | 0 | 0.13 | 1.89 |
G |   | 0 | 0 |   |   | 0 | 0 | 0 | 0 |   |   |   |   |   |   |   |   |   | 1 |   | 0 | 2 | 1 | 2 |   | 0 |   | 0 | 0 |   | 0 | 0.40 | 5.66 |
H |   | 0 | 0 |   |   | 3 | 2 | 1 | 1 |   |   |   |   |   |   |   |   |   | 1 |   | 1 | 1 | 0 | 1 |   | 2 |   | 2 | 0 |   | 0 | 1.00 | 14.15 |
I |   | 1 | 2 |   |   | 0 | 0 | 0 | 1 |   |   |   |   |   |   |   |   |   | 1 |   | 1 | 1 | 1 | 1 |   | 0 |   | 1 | 1 |   | 1 | 0.80 | 11.32 |
x |   | 0 | 0 |   |   | 0 | 0 | 0 | 1 |   |   |   |   |   |   |   |   |   | 0 |   | 0 | 0 | 0 | 0 |   | 2 |   | 0 | 0 |   | 0 | 0.20 | 2.83 |
r |   | 1 | 1 |   |   | 0 | 0 | 0 | 1 |   |   |   |   |   |   |   |   |   | 0 |   | 1 | 1 | 1 | 1 |   | 1 |   | 1 | 0 |   | 0 | 0.60 | 8.49 |
s |   | 2 | 2 |   |   | 2 | 3 | 5 | 4 |   |   |   |   |   |   |   |   |   | 2 |   | 3 | 1 | 1 | 2 |   | 4 |   | 2 | 2 |   | 2 | 2.47 | 34.91 |
a |   | 2 | 3 |   |   | 5 | 6 | 5 | 4 |   |   |   |   |   |   |   |   |   | 4 |   | 2 | 3 | 3 | 1 |   | 1 |   | 2 | 2 |   | 2 | 3.00 | 42.45 |
h |   | 0 | 0 |   |   | 0 | 1 | 1 | 0 |   |   |   |   |   |   |   |   |   | 0 |   | 0 | 0 | 0 | 2 |   | 1 |   | 0 | 0 |   | 0 | 0.33 | 4.72 |
k |   | 0 | 0 |   |   | 0 | 0 | 0 | 1 |   |   |   |   |   |   |   |   |   | 1 |   | 1 | 1 | 0 | 0 |   | 0 |   | 1 | 1 |   | 1 | 0.47 | 6.60 |
x |   | 1 | 2 |   |   | 3 | 2 | 1 | 2 |   |   |   |   |   |   |   |   |   | 2 |   | 2 | 2 | 1 | 2 |   | 4 |   | 3 | 1 |   | 1 | 1.93 | 27.36 |
o |   | 1 | 0 |   |   | 4 | 7 | 7 | 6 |   |   |   |   |   |   |   |   |   | 4 |   | 3 | 4 | 3 | 4 |   | 2 |   | 1 | 2 |   | 1 | 3.27 | 46.23 |
i |   | 3 | 4 |   |   | 0 | 1 | 3 | 2 |   |   |   |   |   |   |   |   |   | 1 |   | 2 | 0 | 1 | 0 |   | 3 |   | 2 | 2 |   | 3 | 1.80 | 25.47 |
c |   | 0 | 0 |   |   | 0 | 0 | 0 | 1 |   |   |   |   |   |   |   |   |   | 0 |   | 0 | 0 | 0 | 0 |   | 0 |   | 0 | 0 |   | 0 | 0.07 | 0.94 |
CV |   | 101 | 101 |   |   | 81 | 179 | 239 | 202 |   |   |   |   |   |   |   |   |   | 127 |   | 147 | 111 | 66 | 142 |   | 147 |   | 112 | 101 |   | 126 | 132.13 | 100 |
CVn |   | 88 | 95 |   |   | 63 | 131 | 175 | 132 |   |   |   |   |   |   |   |   |   | 67 |   | 67 | 42 | 12 | 86 |   | 89 |   | 92 | 85 |   | 85 | 87.27 | 66.04 |
CVs |   | 13 | 6 |   |   | 18 | 48 | 64 | 70 |   |   |   |   |   |   |   |   |   | 60 |   | 80 | 69 | 54 | 56 |   | 58 |   | 20 | 16 |   | 41 | 44.87 | 33.96 |
gr |   | 5 | 6 |   |   | 4 | 8 | 9 | 10 |   |   |   |   |   |   |   |   |   | 5 |   | 6 | 5 | 5 | 4 |   | 6 |   | 3 | 3 |   | 5 | 5.60 | 80.77 |
grfp |   | 25 | 34 |   |   | 13 | 35 | 54 | 57 |   |   |   |   |   |   |   |   |   | 17 |   | 19 | 19 | 16 | 17 |   | 17 |   | 18 | 17 |   | 31 | 25.93 | 64.19 |
grf |   | 11 | 18 |   |   | 6 | 11 | 23 | 22 |   |   |   |   |   |   |   |   |   | 20 |   | 16 | 11 | 10 | 2 |   | 12 |   | 13 | 11 |   | 21 | 14.47 | 35.81 |
efp |   | 0 | 0 |   |   | 3 | 2 | 2 | 1 |   |   |   |   |   |   |   |   |   | 2 |   | 1 | 1 | 0 | 2 |   | 2 |   | 2 | 1 |   | 0 | 1.27 | 18.27 |
ef |   | 0 | 0 |   |   | 0 | 0 | 0 | 0 |   |   |   |   |   |   |   |   |   | 0 |   | 0 | 0 | 0 | 0 |   | 1 |   | 0 | 0 |   | 0 | 0.07 | 0.96 |
Cond |   | 3 | 3 |   |   | 3 | 3 | 2 | 3 |   |   |   |   |   |   |   |   |   | 2 |   | 2 | 3 | 1 | 2 |   | 1 |   | 2 | 2 |   | 1 | 2.20 | 56.00 |