The Sunspot Observer - Average annual indices of solar activity NGDC - April, 1982

Statistics of sunspot activity

April, 1982

Visual indices of solar activity by National Geophysical Data Center

Date123456789101112131415161718192021222324252627282930Average%
W157.00169.60190.50194.00126.80144.60152.50164.60131.43191.67187.60198.33195.00186.60178.80156.5099.80117.17113.00117.33117.60126.25210.00222.50201.67193.00151.40133.33123.25121.20159.10100
Wn77.5096.8085.5094.0067.2075.2076.0072.4062.7195.0092.6098.6792.0085.0078.2075.2548.4044.3340.2066.0077.00109.50190.75196.50174.83159.40117.8096.0086.7572.0093.4558.74
Ws79.5072.80105.00100.0059.6069.4076.5092.2068.7196.6795.0099.67103.00101.60100.6081.2551.4072.8372.8051.3340.6016.7519.2526.0026.8333.6033.6037.3336.5049.2065.6541.26
n9.0010.4013.5011.008.009.8011.2512.209.1411.6711.6012.3312.0012.6011.8010.507.808.508.208.007.207.258.5010.339.5010.208.206.676.758.009.73100
A1.002.002.001.000.600.201.003.001.141.002.002.672.202.003.001.751.402.501.200.670.200.500.250.501.001.800.800.000.501.001.3013.32
B1.750.802.251.330.400.401.500.000.430.670.602.331.802.201.000.250.200.000.000.000.601.001.002.500.831.400.800.000.001.200.919.33
C2.752.403.251.001.401.803.252.201.432.001.802.333.202.202.201.251.201.001.601.671.601.752.752.172.171.400.800.331.001.001.8318.81
D1.752.802.754.002.402.801.001.802.293.673.201.671.001.401.602.501.001.001.602.002.801.751.502.001.501.400.801.332.001.201.9520.04
E0.750.400.000.670.000.000.000.000.000.330.601.000.800.400.600.250.000.000.200.000.000.001.251.001.171.200.400.000.000.200.373.84
F0.000.400.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.010.14
G0.000.201.001.000.600.000.000.000.000.000.000.000.200.600.400.750.200.170.000.330.000.000.000.000.501.202.402.671.251.000.484.96
H0.000.000.250.330.000.400.250.000.140.331.000.331.201.400.800.501.001.001.402.000.800.750.750.670.170.400.400.670.500.400.596.11
I1.001.402.001.672.604.204.255.203.713.672.402.001.602.402.203.252.802.832.201.331.201.501.001.502.171.401.801.671.502.002.2823.45
x2.752.804.252.331.000.602.503.001.571.672.605.004.004.204.002.001.602.501.200.670.801.501.253.001.833.201.600.000.502.202.2022.65
r2.501.001.250.330.201.201.250.600.140.331.200.000.400.200.001.251.200.170.200.330.201.250.500.500.670.200.000.000.250.400.596.07
s2.253.204.503.674.805.605.756.205.716.003.604.674.003.402.203.252.203.334.202.333.002.502.501.832.833.402.202.003.002.603.5636.57
a0.752.402.254.001.802.001.252.001.143.332.401.331.202.203.602.751.801.001.202.001.000.251.251.831.830.801.803.332.251.801.8919.38
h0.000.000.250.000.000.400.500.400.570.331.200.671.801.801.201.251.001.001.402.332.201.751.751.170.830.800.400.330.250.400.878.90
k0.751.001.000.670.200.000.000.000.000.000.600.670.600.800.800.000.000.500.000.330.000.001.252.001.501.802.201.000.500.600.636.43
x2.003.404.253.003.204.805.508.205.005.005.405.005.005.806.005.505.206.334.804.002.202.752.002.673.333.603.002.332.503.404.1742.88
o6.256.208.257.004.604.405.004.004.006.004.806.336.205.805.204.252.602.002.604.004.402.754.505.174.675.404.603.673.503.804.7348.63
i0.500.601.001.000.200.600.750.000.140.671.001.000.801.000.600.750.000.170.800.000.601.751.502.501.501.200.600.670.750.800.788.03
c0.250.200.000.000.000.000.000.000.000.000.400.000.000.000.000.000.000.000.000.000.000.000.500.000.000.000.000.000.000.000.050.46
CV103.50141.80170.00172.33113.00130.20113.75125.40124.29156.67186.80153.00177.00189.60166.00157.7598.20119.17135.60177.00163.40129.25192.75196.50175.67189.40174.20144.00122.25114.60150.44100
CVn54.0099.6097.25101.6767.6078.2059.2560.8066.2983.67110.40100.00115.00109.6098.4085.2552.4055.8376.40113.00113.80118.50175.50181.33160.33151.00143.20118.3397.5073.20100.5866.86
CVs49.5042.2072.7570.6745.4052.0054.5064.6058.0073.0076.4053.0062.0080.0067.6072.5045.8063.3359.2064.0049.6010.7517.2515.1715.3338.4031.0025.6724.7541.4049.8633.14