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

Statistics of sunspot activity

February, 2002

Visual indices of solar activity by National Geophysical Data Center

Date12345678910111213141516171819202122232425262728Average%
W236.33208.00284.00266.00290.00205.00176.33200.33200.25182.75195.00171.00160.25182.75152.33136.33126.6789.67108.50132.50116.00134.33157.75167.50220.25221.75180.67175.67181.35100
Wn97.6785.67121.6795.67103.3381.3371.00115.67106.5071.5067.7576.7583.7588.7568.0060.6753.3330.0046.0037.2541.5033.3343.7550.5063.7575.2577.3384.6772.5840.02
Ws138.67122.33162.33170.33186.67123.67105.3384.6793.75111.25127.2594.2576.5094.0084.3375.6773.3359.6762.5095.2574.50101.00114.00117.00156.50146.50103.3391.00108.7759.98
n8.338.6713.6714.0016.6712.3311.0012.6712.2510.2511.009.009.0010.008.677.336.333.334.507.007.508.009.259.2511.7512.009.678.679.72100
A0.330.000.331.002.331.330.671.002.251.001.250.500.002.001.331.671.330.000.001.001.501.670.750.000.500.501.001.000.949.65
B0.000.001.001.001.330.330.670.671.000.750.000.250.500.750.330.671.330.330.500.500.750.330.500.500.250.251.000.000.555.70
C1.672.673.001.332.674.003.332.675.003.002.003.001.750.751.331.330.670.001.000.501.251.672.752.002.252.250.331.671.9920.52
D1.332.333.335.334.674.334.005.671.751.753.250.751.501.501.670.330.000.000.501.251.002.002.753.757.257.005.004.332.8028.79
E2.001.671.331.330.670.330.330.000.001.501.251.250.250.250.330.000.330.000.000.250.000.000.000.250.750.001.001.000.575.91
F1.001.001.001.000.330.000.000.000.000.000.000.000.500.751.001.671.671.331.001.001.001.001.000.750.250.000.000.000.626.34
G0.000.330.670.331.000.330.000.000.750.250.500.500.750.500.331.330.330.670.500.000.000.000.250.000.000.500.670.670.404.10
H0.000.330.000.000.000.000.000.000.000.000.000.000.250.000.330.000.000.000.000.000.250.000.000.000.000.000.000.000.040.43
I2.000.333.002.673.671.672.002.671.502.002.752.753.503.502.000.330.671.001.002.501.751.331.252.000.501.500.670.001.8018.56
x0.330.001.332.003.671.671.331.673.251.751.250.750.502.751.672.332.670.330.501.502.252.001.250.500.750.752.001.001.4915.34
r0.000.001.330.670.330.330.000.000.750.250.250.500.500.251.000.670.000.000.500.500.250.331.500.250.250.750.001.000.434.47
s2.333.338.004.675.333.676.336.005.004.254.503.504.254.754.331.671.671.002.003.002.252.673.504.005.004.252.002.333.7738.81
a3.333.671.335.006.676.333.005.002.503.004.003.003.001.751.002.331.671.000.501.252.002.332.503.505.255.005.334.333.2032.92
h0.000.000.000.000.000.000.000.000.250.000.000.000.000.000.330.330.330.000.000.000.000.000.000.000.000.250.000.000.050.55
k2.331.671.671.670.670.330.330.000.501.001.001.250.750.500.330.000.001.001.000.750.750.670.501.000.501.000.330.000.777.90
x2.330.673.333.676.003.002.673.673.753.004.003.253.755.503.672.002.001.001.003.503.503.002.002.001.002.001.671.002.7828.64
o3.005.338.008.009.678.337.679.007.505.505.504.253.753.253.673.672.331.002.002.253.004.006.255.508.258.006.005.335.3655.13
i1.331.672.002.000.671.000.670.001.001.751.251.251.500.750.671.672.001.331.000.500.500.671.001.252.002.002.002.331.2813.14
c1.671.000.330.330.330.000.000.000.000.000.250.250.000.500.670.000.000.000.500.750.500.330.000.500.500.000.000.000.303.09
CV202.00206.33252.00259.00227.00166.33161.33174.00138.75153.75180.50140.75138.00129.50139.00103.3384.3381.3396.00110.75100.00116.00134.00173.25228.50227.50162.67145.00158.25100
CVn73.3393.33109.67119.0097.0059.6753.6797.0078.2578.5072.5061.0065.5064.0062.3347.6737.0032.6738.0038.2533.2523.6741.0046.2564.7571.7553.3348.0062.8739.73
CVs128.67113.00142.33140.00130.00106.67107.6777.0060.5075.25108.0079.7572.5065.5076.6755.6747.3348.6758.0072.5066.7592.3393.00127.00163.75155.75109.3397.0095.3860.27