The Sunspot Observer - Average annual indices of solar activity NGDC - May, 1999

Statistics of sunspot activity

May, 1999

Visual indices of solar activity by National Geophysical Data Center

Date12345678910111213141516171819202122232425262728293031Average%
W46.5081.0081.0090.00124.75127.50162.00187.50178.25126.20113.0093.2082.2588.50106.0085.8090.00101.67111.50 124.0094.40102.67101.0095.00131.75150.25119.00136.33149.67155.00114.52100
Wn32.5059.0050.0072.7586.7594.75123.00130.00119.0074.8053.3334.2041.2542.2550.7546.0041.0038.6736.50 44.5026.2028.0044.0051.0082.7592.0078.6793.33106.0086.0065.3057.02
Ws14.0022.0031.0017.2538.0032.7539.0057.5059.2551.4059.6759.0041.0046.2555.2539.8049.0063.0075.00 79.5068.2074.6757.0044.0049.0058.2540.3343.0043.6769.0049.2242.98
n3.255.335.335.508.509.0011.0011.7511.007.206.335.004.505.756.755.806.006.336.50 6.755.206.006.006.007.759.258.008.678.339.007.06100
A1.500.331.330.501.251.250.000.000.750.400.330.600.750.001.000.401.000.331.00 0.000.000.670.000.250.250.750.671.002.330.000.628.81
B0.002.671.671.252.501.501.670.752.502.001.330.400.751.750.750.200.601.330.50 0.250.000.000.000.750.501.501.331.000.672.001.0715.16
C0.000.670.671.751.753.505.673.251.751.401.671.800.751.251.251.800.600.672.00 1.750.602.002.503.253.002.000.000.670.332.001.6823.74
D0.000.000.000.500.751.002.335.003.501.801.001.201.001.252.250.800.600.671.00 2.251.600.330.250.001.251.752.003.003.673.001.4620.66
E0.000.000.000.000.000.000.000.000.250.400.330.000.000.000.000.000.000.000.00 0.250.400.000.250.250.000.001.000.330.000.000.121.64
F0.000.000.330.000.000.000.000.000.000.200.330.000.000.000.000.000.000.000.00 0.250.200.000.000.000.000.000.000.330.330.000.070.94
G1.001.000.671.001.000.500.332.000.750.200.000.401.000.250.250.401.201.001.00 1.250.802.001.500.751.251.500.000.330.330.000.7911.17
H0.000.000.000.000.000.250.000.000.250.000.000.000.000.250.751.201.201.000.00 0.000.400.670.750.000.000.000.000.000.000.500.243.41
I0.750.670.670.501.251.001.000.751.250.801.330.600.251.000.501.000.801.331.00 0.751.200.330.750.751.501.753.002.000.671.501.0214.47
x1.503.003.001.753.752.751.670.753.252.401.671.001.501.751.750.601.601.671.50 0.250.000.670.001.000.752.252.002.003.002.001.6923.97
r0.250.330.330.751.000.751.671.500.000.001.000.600.250.250.000.200.000.331.00 0.000.000.000.000.001.000.250.671.330.000.000.456.36
s1.251.671.672.252.252.254.004.504.502.401.671.001.251.251.252.000.801.671.50 1.502.402.001.752.503.752.002.672.002.005.002.2231.49
a0.250.330.330.751.503.003.004.002.251.601.331.600.751.501.751.402.001.331.50 4.252.202.672.501.251.003.501.672.332.001.001.8225.76
h0.000.000.000.000.000.250.670.750.250.200.000.000.000.250.250.000.000.000.50 0.000.200.001.250.500.500.500.000.670.330.000.243.34
k0.000.000.000.000.000.000.000.250.750.600.670.800.750.751.751.601.601.330.50 0.750.400.670.500.750.750.751.000.331.001.000.649.09
x2.251.002.001.002.502.501.000.752.251.201.671.201.001.252.252.603.002.672.00 0.751.601.671.501.001.752.503.673.003.002.001.8826.69
o1.004.333.004.506.006.5010.0011.007.505.004.003.403.504.504.253.203.003.674.50 5.252.804.334.254.755.756.503.334.004.006.504.8168.14
i0.000.000.330.000.000.000.000.001.250.600.330.400.000.000.250.000.000.000.00 0.500.800.000.250.250.250.250.671.331.330.500.314.39
c0.000.000.000.000.000.000.000.000.000.400.330.000.000.000.000.000.000.000.00 0.250.000.000.000.000.000.000.330.330.000.000.060.78
CV32.7542.6742.6759.2570.2583.75133.67209.00168.50110.6082.3377.8076.0085.50135.00107.80104.40102.6795.50 127.75106.4098.67133.25101.75130.50136.75117.33136.67141.33139.00106.32100
CVn31.5039.3336.3351.0056.5070.5097.33157.25108.2561.6053.0041.2049.7557.7589.5075.6065.0066.6754.50 60.2543.8038.3375.2568.2590.5092.2586.00107.6798.3390.0070.4466.25
CVs1.253.336.338.2513.7513.2536.3351.7560.2549.0029.3336.6026.2527.7545.5032.2039.4036.0041.00 67.5062.6060.3358.0033.5040.0044.5031.3329.0043.0049.0035.8833.75