The Sunspot Observer - Average annual indices of solar activity NGDC - April, 2013

Statistics of sunspot activity

April, 2013

Visual indices of solar activity by National Geophysical Data Center

Date123456789101112131415161718192021222324252627282930Average%
W83.6797.33119.33106.33115.33113.00100.33127.67135.50147.33125.33129.33140.00109.3395.3385.0091.0083.0089.6794.0072.6795.5079.6799.00103.67100.00111.6796.33120.00155.33107.39100
Wn37.3353.3363.0065.6768.0084.3374.0095.0099.0090.3374.6780.3382.6741.6723.3313.3313.007.3334.6763.6761.0076.5063.0072.0076.6772.0062.3345.6745.3364.0060.1155.97
Ws46.3344.0056.3340.6747.3328.6726.3332.6736.5057.0050.6749.0057.3367.6772.0071.6778.0075.6755.0030.3311.6719.0016.6727.0027.0028.0049.3350.6774.6791.3347.2844.03
n6.006.677.676.677.677.336.337.678.008.006.336.006.336.005.674.675.004.676.676.003.334.004.335.677.336.677.005.006.676.676.20100
A1.000.672.331.001.671.331.671.001.500.670.000.330.330.000.000.330.000.001.330.670.000.500.330.671.001.001.670.330.671.330.7812.54
B0.671.000.672.001.330.000.670.330.501.000.330.000.000.330.000.000.000.001.330.670.001.001.330.670.001.000.000.000.330.000.518.15
C0.672.331.332.331.333.672.002.672.001.671.000.330.330.332.001.332.001.001.671.670.670.500.330.670.671.330.670.671.330.331.2920.88
D1.330.671.670.331.671.671.002.333.503.333.003.332.673.671.332.002.671.670.332.331.331.000.000.672.331.671.001.331.002.671.7828.76
E0.000.000.000.000.000.000.000.000.000.000.330.330.670.330.670.000.000.000.000.000.671.000.670.000.330.670.330.001.331.330.294.66
F0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.331.000.670.000.330.670.000.000.101.61
G0.000.000.000.000.000.000.670.000.000.000.000.000.000.330.330.000.000.000.000.000.000.000.000.000.000.000.330.000.000.330.071.08
H0.330.330.000.000.000.000.000.670.500.330.330.330.000.330.000.330.000.000.000.000.000.000.000.000.000.330.330.000.000.000.142.24
I2.001.671.671.001.670.670.330.670.001.001.331.332.330.671.330.670.332.002.000.670.670.001.332.002.330.672.332.002.000.671.2420.07
x1.671.673.003.003.001.332.331.332.001.670.330.330.330.330.000.330.000.002.671.330.001.501.671.331.002.001.670.331.001.331.2820.70
r1.000.001.000.000.670.670.001.330.000.330.000.330.670.330.330.000.000.332.000.670.000.000.000.671.670.331.000.330.000.670.487.71
s1.332.671.332.001.672.331.002.003.002.002.331.673.003.002.671.673.003.000.671.671.330.501.331.002.001.671.672.332.671.001.9230.91
a1.001.331.330.671.332.002.332.002.002.672.002.002.332.002.332.332.001.331.332.001.001.000.331.671.330.671.671.671.001.331.6025.81
h0.000.330.000.000.000.000.000.670.500.000.670.330.000.330.000.000.000.000.000.000.000.000.000.000.330.670.000.000.671.000.182.96
k1.000.671.001.001.001.000.670.330.501.331.001.330.000.000.330.330.000.000.000.331.001.001.001.001.001.331.000.331.331.330.7411.92
x3.332.674.002.003.332.002.002.332.002.001.672.002.671.001.331.330.332.003.331.330.670.501.672.673.332.004.332.332.672.002.1634.86
o2.333.673.674.003.674.003.333.673.503.672.672.331.333.333.002.673.671.333.333.671.332.501.672.002.333.001.000.671.672.002.7043.55
i0.330.330.000.670.671.331.000.671.501.331.331.001.001.000.670.670.671.330.001.000.670.000.330.331.000.000.670.671.330.670.7411.92
c0.000.000.000.000.000.000.001.001.001.000.670.671.330.670.670.000.330.000.000.000.671.000.670.670.671.671.001.331.002.000.609.68
CV77.3387.0088.6774.6795.67106.0078.67125.67150.00149.67153.00143.67110.33128.33100.6775.0087.0066.0032.6780.6788.6783.0072.3389.00132.67144.67107.3392.00150.00181.00105.04100
CVn23.3334.3330.6724.3341.0064.0049.6783.3399.0087.6778.3380.6765.6750.0021.008.6711.006.6710.0068.3379.3375.5070.0078.00102.00113.6747.0044.6751.3352.6755.0652.42
CVs54.0052.6758.0050.3354.6742.0029.0042.3351.0062.0074.6763.0044.6778.3379.6766.3376.0059.3322.6712.339.337.502.3311.0030.6731.0060.3347.3398.67128.3349.9847.58