The Sunspot Observer - Average annual indices of solar activity NGDC - April, 2002

Statistics of sunspot activity

April, 2002

Visual indices of solar activity by National Geophysical Data Center

Date123456789101112131415161718192021222324252627282930Average%
W165.00236.33160.00190.67195.00210.00214.67210.75208.67220.50219.25259.00249.50228.75227.00177.33138.00160.00161.25181.33135.75140.50173.00229.67208.00154.67164.00113.67102.00115.67185.00100
Wn108.00150.67104.00149.67149.00149.75132.67125.75112.33117.75105.50131.00104.00112.50103.6765.3338.0049.6749.0067.6769.5084.50113.00111.3399.0080.33112.6796.6789.33102.33102.8255.58
Ws57.0085.6756.0041.0046.0060.2582.0085.0096.33102.75113.75128.00145.50116.25123.33112.00100.00110.33112.25113.6766.2556.0060.00118.33109.0074.3351.3317.0012.6713.3382.1844.42
n6.678.338.339.009.6712.0012.0012.0012.3312.5012.0012.0010.5011.2512.0010.007.008.007.758.338.258.7510.3312.3313.009.6711.006.337.338.679.91100
A0.000.670.671.000.672.500.331.000.331.250.750.000.000.251.001.330.250.000.250.330.000.501.330.670.000.001.330.671.001.000.646.42
B0.000.331.001.001.670.752.330.500.670.250.500.500.500.751.000.000.000.330.251.001.250.500.000.331.001.671.000.000.330.670.676.75
C0.003.001.331.000.671.500.672.502.003.252.003.000.501.752.332.331.001.001.001.672.001.501.673.004.003.331.671.001.674.671.9019.17
D3.671.672.332.331.672.252.673.003.673.254.505.505.503.252.331.671.753.333.253.672.503.505.674.335.003.005.334.333.330.333.2933.16
E1.001.331.331.672.671.250.330.751.331.750.751.501.001.501.331.671.751.001.000.670.250.000.000.330.000.000.000.000.000.000.878.80
F0.330.670.000.330.001.001.000.750.330.250.250.500.500.250.330.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.222.19
G0.330.330.330.670.670.501.331.252.001.002.000.500.501.000.670.330.000.000.501.000.500.750.001.671.001.000.330.330.000.330.697.01
H0.000.000.000.000.000.250.330.250.000.000.000.000.500.000.000.330.000.000.000.000.000.000.000.000.000.000.000.000.000.000.060.56
I1.330.331.331.001.672.003.002.002.001.501.250.501.502.503.002.332.252.331.500.001.752.001.672.002.000.671.330.001.001.671.5815.95
x0.001.001.672.002.333.252.671.501.001.501.250.500.501.002.001.330.250.330.501.331.251.001.331.001.001.672.330.671.331.671.3113.17
r0.331.000.000.000.330.250.330.500.330.000.000.500.500.000.670.330.000.330.000.000.501.000.670.671.001.671.330.330.330.330.444.46
s1.001.672.002.002.002.503.336.005.675.755.753.002.005.504.674.003.503.673.002.002.253.754.334.005.003.002.674.003.675.333.5735.99
a3.332.332.002.002.673.753.672.504.334.504.257.005.003.003.003.002.253.003.004.674.252.753.336.336.003.003.671.332.001.333.4434.73
h0.330.331.331.330.330.000.000.250.000.000.250.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.141.40
k1.672.001.331.672.002.252.001.251.000.750.501.002.501.751.671.331.000.671.250.330.000.250.670.330.000.331.000.000.000.001.0210.26
x1.331.002.002.002.334.753.673.252.332.752.000.502.002.754.004.002.502.331.750.331.752.503.002.672.000.672.670.672.002.672.2722.93
o3.335.004.334.333.674.756.676.757.337.257.758.005.005.755.334.002.504.335.006.675.505.006.009.0011.008.678.005.004.676.005.8959.39
i2.002.332.002.333.331.501.331.752.332.001.753.501.502.252.001.671.750.330.500.670.751.001.330.330.000.330.330.670.670.001.4114.21
c0.000.000.000.330.331.000.330.250.330.500.500.002.000.500.670.330.251.000.500.670.250.250.000.330.000.000.000.000.000.000.343.48
CV172.67174.67185.33214.33200.33211.50209.67221.75236.00216.00231.00229.00261.50226.75204.33165.33137.25151.33161.25145.67105.25134.00170.00189.33178.00129.67168.00120.67104.3380.33177.84100
CVn117.33124.67136.33170.00150.33153.75143.00147.75160.67134.00139.25111.50136.00113.00102.3357.0037.5056.3345.2547.6754.2586.00112.33103.6778.0089.67148.67115.0096.6769.67107.9260.68
CVs55.3350.0049.0044.3350.0057.7566.6774.0075.3382.0091.75117.50125.50113.75102.00108.3399.7595.00116.0098.0051.0048.0057.6785.67100.0040.0019.335.677.6710.6769.9239.32