The Sunspot Observer - Average annual indices of solar activity NGDC - October, 1991

Statistics of sunspot activity

October, 1991

Visual indices of solar activity by National Geophysical Data Center

Date12345678910111213141516171819202122232425262728293031Average%
W220.17217.29222.86191.80228.14173.71151.86139.29187.17217.50209.43190.20160.17181.33172.83194.80150.83143.71130.17132.14120.17125.20151.83203.29194.71194.43239.00250.75218.71253.60254.00187.78100
Wn60.0063.5763.4360.4071.8652.8656.2975.71110.00109.67100.0072.6062.0081.6779.5095.8079.8370.2978.1772.1458.1753.8053.8372.1480.4387.29107.0097.7569.2984.0083.2076.2240.59
Ws160.17153.71159.43131.40156.29120.8695.5763.5777.17107.83109.43117.6098.1799.6793.3399.0071.0073.4352.0060.0062.0071.4098.00131.14114.29107.14132.00153.00149.43169.60170.80111.5659.41
n8.677.718.008.009.298.149.008.5711.0012.6712.4310.009.0010.1710.0010.007.337.867.508.006.836.606.837.717.437.148.509.258.869.009.208.73100
A3.831.861.431.000.860.571.711.291.671.171.430.801.000.671.672.601.671.861.672.431.330.400.170.290.431.712.001.001.291.001.201.3515.51
B0.831.140.570.000.862.141.572.002.503.832.291.200.670.832.671.600.670.711.173.293.001.801.171.142.291.291.752.001.290.601.001.5417.68
C0.171.000.861.401.291.292.001.861.833.504.430.601.674.501.330.400.170.861.500.861.172.201.832.290.570.000.001.001.000.401.201.3915.94
D1.000.141.431.602.431.571.291.711.831.831.572.202.331.501.502.202.172.001.170.710.671.002.002.001.431.001.252.002.003.602.801.6819.19
E0.670.861.000.200.290.570.430.140.000.500.290.800.500.000.000.600.830.710.670.290.000.400.500.571.001.140.751.000.860.201.000.546.19
F1.001.141.141.201.000.710.710.000.000.000.000.200.000.000.000.000.000.000.170.000.000.000.501.001.001.431.501.251.862.401.000.627.10
G1.171.430.711.801.571.141.141.142.000.000.430.600.500.671.001.000.830.710.000.000.170.000.170.290.570.430.750.750.430.401.000.748.42
H0.000.000.000.000.000.000.000.000.330.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.010.12
I0.000.140.860.801.000.140.140.430.831.832.003.602.332.001.831.601.001.001.170.430.500.800.500.140.140.140.500.250.140.400.000.869.85
x4.673.002.001.001.712.713.293.294.175.003.712.001.671.504.334.202.332.572.835.714.332.201.331.432.713.003.753.002.571.602.202.9033.19
r0.000.140.000.200.570.140.290.291.000.670.710.600.330.330.000.400.170.430.170.570.830.600.330.710.140.000.500.000.140.800.000.364.09
s0.670.861.572.602.141.001.862.001.003.332.572.403.334.672.331.201.001.571.671.000.331.001.171.000.570.140.500.251.570.201.601.5217.40
a0.831.001.861.202.862.292.002.143.832.674.434.002.832.502.332.802.332.712.830.711.332.003.003.292.142.001.754.002.864.803.402.5429.09
h0.170.000.860.800.140.000.000.000.000.000.140.000.000.000.000.000.330.000.000.000.000.000.000.000.000.000.000.000.140.000.000.080.96
k2.332.711.712.201.862.001.570.861.001.000.861.000.831.171.001.401.170.570.000.000.000.801.001.291.862.002.002.001.571.602.001.3315.28
x3.832.002.291.801.860.711.861.712.833.003.434.403.332.673.504.202.672.862.832.861.831.200.670.430.571.862.501.251.431.401.202.2225.48
o2.833.713.004.805.296.005.716.298.008.508.433.404.176.504.834.402.833.713.504.294.834.404.835.144.712.713.755.754.574.605.204.8655.67
i1.331.291.860.601.140.571.290.430.170.830.431.601.500.501.001.001.831.291.170.860.170.600.331.291.141.711.751.501.712.001.801.1212.81
c0.670.710.860.801.000.860.140.140.000.330.140.600.000.500.670.400.000.000.000.000.000.401.000.861.000.860.500.751.141.001.000.536.03
CV160.00166.14189.57212.80196.14159.71143.00113.43132.83135.17134.00150.40133.33146.00120.17137.80131.33107.0072.1741.7134.1780.40122.17144.71151.43149.71154.00176.50183.57194.00199.60141.06100
CVn39.8349.4361.8669.8060.4363.2965.8672.4369.3361.8348.5745.0039.1746.1735.6743.2047.1738.8640.3318.1412.8320.2031.1747.1453.2952.5754.7551.5036.0046.8061.8047.8833.95
CVs120.17116.71127.71143.00135.7196.4377.1441.0063.5073.3385.43105.4094.1799.8384.5094.6084.1768.1431.8323.5721.3360.2091.0097.5798.1497.1499.25125.00147.57147.20137.8093.1866.05