The Sunspot Observer - Average annual indices of solar activity NGDC - April, 1983

Statistics of sunspot activity

April, 1983

Visual indices of solar activity by National Geophysical Data Center

Date123456789101112131415161718192021222324252627282930Average%
W83.1789.3396.5077.3361.6073.8095.6785.6783.6086.3383.1782.2573.00     124.60111.8394.5792.00104.86103.13126.29137.75154.25160.43174.33162.80104.73100
Wn0.000.000.000.000.000.000.000.000.000.000.005.5010.00     39.0032.3328.2944.0044.1428.5040.8642.2541.2538.4340.1735.2018.8017.95
Ws83.1789.3396.5077.3361.6073.8095.6785.6783.6086.3383.1776.7563.00     85.6079.5066.2948.0060.7174.6385.4395.50113.00122.00134.17127.6085.9382.05
n5.335.506.005.333.804.605.503.833.804.174.835.504.80     8.007.176.146.006.005.756.867.257.257.439.009.605.98100
A1.500.830.332.000.600.400.330.170.400.170.171.500.40     0.600.670.292.001.000.500.860.250.750.000.830.800.6911.60
B2.672.002.330.670.801.001.170.670.400.330.670.750.60     1.400.501.711.001.290.631.141.250.750.290.170.400.9816.44
C0.001.002.000.330.600.801.330.000.601.001.671.251.60     2.403.332.001.501.711.751.141.502.501.572.002.201.4323.95
D1.001.671.331.331.601.801.331.671.801.331.501.501.20     2.602.171.711.501.862.633.003.251.751.712.171.801.8130.25
E0.000.000.000.000.000.000.000.000.000.000.000.000.00     0.000.000.000.000.000.000.000.000.000.430.670.200.050.87
F0.000.000.000.000.000.000.000.000.000.000.000.000.00     0.000.000.000.000.000.000.000.000.250.140.000.000.020.26
G0.000.000.000.670.200.000.000.330.200.500.000.000.00     0.000.000.000.000.140.000.430.500.751.431.172.200.345.70
H0.000.000.000.000.000.200.000.000.200.000.000.000.20     0.400.000.140.000.000.130.000.000.000.140.170.200.071.19
I0.170.000.000.330.000.401.331.000.200.830.830.500.80     0.600.500.290.000.000.130.290.500.501.711.831.800.589.73
x4.172.832.672.671.401.401.500.830.800.500.832.251.00     2.001.172.003.002.291.132.001.501.500.291.001.201.6828.05
r0.000.500.830.330.600.401.000.170.200.501.331.750.60     1.601.171.000.500.140.130.430.500.501.711.501.200.7412.44
s0.500.671.000.670.602.202.171.171.001.502.171.002.00     2.003.000.711.000.431.000.862.251.752.003.503.801.5626.05
a0.501.501.501.671.200.400.831.171.000.830.500.500.60     0.600.330.570.001.431.132.291.002.252.140.831.401.0517.51
h0.170.000.000.000.000.200.000.000.200.500.000.000.40     0.600.330.290.500.290.250.000.500.250.290.831.400.284.68
k0.000.000.000.000.000.000.000.500.600.330.000.000.20     1.201.171.571.001.432.131.291.501.001.001.330.600.6711.27
x1.670.830.332.330.601.001.671.170.801.001.002.001.40     1.601.170.712.001.000.751.140.751.251.862.832.801.3522.53
o3.674.505.503.003.003.603.832.172.803.173.673.503.40     5.405.004.713.504.864.885.715.004.254.144.836.404.1869.92
i0.000.170.170.000.200.000.000.500.200.000.170.000.00     1.000.670.570.500.140.130.001.501.751.431.330.400.437.24
c0.000.000.000.000.000.000.000.000.000.000.000.000.00     0.000.330.140.000.000.000.000.000.000.000.000.000.020.32
CV35.0046.5047.3349.0043.2062.2054.0065.3371.6077.5056.1744.2567.00     132.40125.00107.2990.00104.29136.00114.57155.75121.00135.71181.17185.0092.29100
CVn0.000.000.000.000.000.000.000.000.000.000.000.5012.80     17.0021.839.1414.5013.5715.3823.1429.0030.7523.1427.0020.4010.3311.19
CVs35.0046.5047.3349.0043.2062.2054.0065.3371.6077.5056.1743.7554.20     115.40103.1798.1475.5090.71120.6391.43126.7590.25112.57154.17164.6081.9688.81