Statistics of sunspot activity
February, 1994
Visual indices of solar activity by National Geophysical Data Center
Date | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | Average | % |
W | 46.80 | 46.00 | 52.60 | 61.00 | 54.00 | 66.00 | 73.50 | 71.33 | 56.80 | 43.00 | 43.00 | 50.50 | 58.75 | 57.00 | 44.25 | 58.25 | 62.67 | 58.50 | 33.20 | 26.25 | 23.00 | 61.00 | 43.33 | 51.50 | 42.33 | 47.75 | 56.00 | 63.67 | 51.86 | 100 |
Wn | 16.60 | 33.00 | 45.60 | 41.40 | 34.00 | 29.50 | 31.75 | 44.00 | 39.20 | 33.20 | 43.00 | 50.50 | 58.75 | 57.00 | 44.25 | 58.25 | 62.67 | 58.50 | 23.40 | 20.50 | 23.00 | 46.67 | 29.00 | 23.50 | 18.67 | 15.50 | 16.60 | 12.00 | 36.07 | 69.56 |
Ws | 30.20 | 13.00 | 7.00 | 19.60 | 20.00 | 36.50 | 41.75 | 27.33 | 17.60 | 9.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 9.80 | 5.75 | 0.00 | 14.33 | 14.33 | 28.00 | 23.67 | 32.25 | 39.40 | 51.67 | 15.79 | 30.44 |
n | 3.40 | 3.50 | 3.60 | 4.20 | 3.50 | 4.00 | 4.25 | 4.33 | 3.60 | 2.80 | 2.75 | 3.75 | 4.50 | 4.00 | 3.00 | 4.00 | 4.67 | 3.75 | 2.20 | 1.50 | 1.50 | 3.67 | 3.00 | 3.50 | 3.33 | 3.75 | 4.00 | 4.00 | 3.50 | 100 |
A | 0.60 | 0.50 | 0.60 | 0.80 | 0.50 | 0.25 | 0.50 | 0.33 | 0.60 | 0.20 | 0.25 | 1.00 | 2.00 | 1.00 | 0.25 | 0.25 | 1.00 | 1.00 | 0.40 | 0.25 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 1.25 | 0.60 | 0.33 | 0.53 | 15.09 |
B | 1.20 | 0.75 | 0.00 | 0.60 | 1.00 | 1.00 | 1.00 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 1.00 | 1.50 | 2.00 | 1.67 | 1.00 | 0.40 | 0.25 | 0.50 | 1.33 | 0.33 | 0.50 | 0.33 | 0.00 | 1.00 | 0.33 | 0.65 | 18.65 |
C | 0.20 | 1.25 | 2.20 | 1.20 | 1.00 | 2.00 | 0.75 | 1.67 | 1.20 | 0.80 | 1.00 | 0.25 | 0.00 | 1.00 | 0.25 | 1.75 | 1.67 | 1.50 | 1.00 | 0.25 | 0.00 | 1.33 | 1.00 | 1.50 | 1.00 | 0.50 | 2.00 | 2.00 | 1.08 | 30.87 |
D | 0.40 | 0.25 | 0.20 | 1.20 | 0.75 | 0.25 | 1.25 | 1.67 | 1.20 | 0.60 | 0.00 | 0.25 | 1.00 | 0.33 | 0.75 | 0.00 | 0.33 | 0.00 | 0.40 | 0.75 | 1.00 | 0.67 | 0.67 | 0.50 | 1.00 | 0.75 | 0.20 | 1.00 | 0.62 | 17.71 |
E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.20 |
F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.40 | 1.00 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 2.60 |
H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.76 |
I | 1.00 | 0.75 | 0.60 | 0.40 | 0.25 | 0.50 | 0.75 | 0.33 | 0.00 | 0.80 | 0.25 | 1.50 | 1.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 1.00 | 1.00 | 1.25 | 0.20 | 0.33 | 0.49 | 14.11 |
x | 1.80 | 1.25 | 0.60 | 1.40 | 1.50 | 1.25 | 1.50 | 0.67 | 0.60 | 0.20 | 0.50 | 1.00 | 2.00 | 2.00 | 1.75 | 2.25 | 2.67 | 2.00 | 0.80 | 0.50 | 0.50 | 1.33 | 0.67 | 0.50 | 0.33 | 1.25 | 1.60 | 0.67 | 1.18 | 33.74 |
r | 0.00 | 0.50 | 0.20 | 0.60 | 0.00 | 0.25 | 0.50 | 1.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.50 | 0.67 | 0.25 | 0.20 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.33 | 0.25 | 0.00 | 0.67 | 0.27 | 7.82 |
s | 1.00 | 0.75 | 1.40 | 1.00 | 1.00 | 0.75 | 1.00 | 0.33 | 0.80 | 1.60 | 1.50 | 1.00 | 0.75 | 0.33 | 0.00 | 0.00 | 0.33 | 0.25 | 0.20 | 0.50 | 0.00 | 0.00 | 1.33 | 2.00 | 1.67 | 1.50 | 1.40 | 1.67 | 0.86 | 24.55 |
a | 0.60 | 1.00 | 1.40 | 1.20 | 1.00 | 1.75 | 1.25 | 2.33 | 2.20 | 1.00 | 0.75 | 1.25 | 1.00 | 1.00 | 0.75 | 0.25 | 0.00 | 0.25 | 0.40 | 0.50 | 1.00 | 1.00 | 0.67 | 1.00 | 1.00 | 0.75 | 1.00 | 1.00 | 0.98 | 27.84 |
h | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.67 | 0.50 | 0.25 | 0.67 | 0.25 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 3.57 |
k | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.33 | 0.75 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 2.48 |
x | 1.60 | 1.25 | 1.20 | 1.20 | 0.75 | 0.75 | 1.25 | 0.67 | 0.60 | 1.00 | 0.50 | 2.50 | 3.50 | 1.67 | 0.50 | 0.25 | 1.00 | 1.25 | 0.40 | 0.25 | 0.00 | 0.33 | 1.00 | 1.00 | 1.00 | 2.50 | 0.80 | 0.67 | 1.05 | 29.97 |
o | 1.80 | 2.25 | 2.40 | 3.00 | 2.75 | 3.00 | 2.75 | 3.67 | 2.80 | 1.80 | 2.25 | 1.25 | 1.00 | 2.33 | 2.50 | 3.75 | 3.67 | 2.25 | 1.80 | 1.00 | 1.50 | 3.33 | 2.00 | 2.50 | 2.33 | 1.25 | 3.20 | 3.33 | 2.41 | 68.81 |
i | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 1.22 |
c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
CV | 22.20 | 22.75 | 29.80 | 37.20 | 29.50 | 28.25 | 39.75 | 45.33 | 49.20 | 38.20 | 35.75 | 34.75 | 50.25 | 45.00 | 37.00 | 47.50 | 56.00 | 47.75 | 34.80 | 20.00 | 20.00 | 35.33 | 41.33 | 35.50 | 39.67 | 33.50 | 28.60 | 42.33 | 36.69 | 100 |
CVn | 10.60 | 17.75 | 29.20 | 31.60 | 27.50 | 20.50 | 22.00 | 25.67 | 29.40 | 31.00 | 35.75 | 34.75 | 50.25 | 45.00 | 37.00 | 47.50 | 56.00 | 47.75 | 30.80 | 19.25 | 20.00 | 28.67 | 26.00 | 16.00 | 21.67 | 19.25 | 5.40 | 5.33 | 28.27 | 77.06 |
CVs | 11.60 | 5.00 | 0.60 | 5.60 | 2.00 | 7.75 | 17.75 | 19.67 | 19.80 | 7.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.00 | 0.75 | 0.00 | 6.67 | 15.33 | 19.50 | 18.00 | 14.25 | 23.20 | 37.00 | 8.42 | 22.94 |
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