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

Statistics of sunspot activity

September, 1991

Visual indices of solar activity by National Geophysical Data Center

Date123456789101112131415161718192021222324252627282930Average%
W226.00163.14181.50247.80184.17178.67144.60181.33159.80165.33158.00158.17188.33192.50180.20132.67134.50179.67124.33138.50147.00155.20179.40142.67144.88153.29158.86195.33203.67153.00168.42100
Wn75.5756.4350.8860.2036.8329.003.0044.8356.6047.3340.8036.6761.6783.3377.0058.6770.17119.3394.3391.8386.6084.6089.4066.5071.3858.5741.4350.3347.6731.0060.7336.06
Ws150.43106.71130.63187.60147.33149.67141.60136.50103.20118.00117.20121.50126.67109.17103.2074.0064.3360.3330.0046.6760.4070.6090.0076.1773.5094.71117.43145.00156.00122.00107.6863.94
n9.149.008.3811.209.009.837.808.678.008.338.408.509.8310.3310.207.677.6711.006.508.679.208.208.808.838.137.868.009.337.506.208.67100
A1.001.140.130.600.331.000.401.171.001.001.200.670.830.501.201.831.503.671.003.501.800.600.201.002.501.861.002.331.171.201.2414.35
B0.430.430.631.400.831.170.600.670.601.000.000.670.830.831.000.171.674.002.331.672.003.202.802.001.130.712.713.002.000.801.3815.86
C0.711.431.753.402.832.330.400.670.600.330.400.330.832.001.401.332.671.001.000.502.201.802.803.171.751.861.001.000.330.201.4016.16
D2.713.143.883.802.672.002.003.673.203.332.803.003.834.002.402.001.170.330.000.170.200.401.201.501.882.141.290.831.831.402.0924.13
E1.000.570.000.800.670.831.000.830.200.330.000.000.170.330.200.000.170.671.000.670.600.400.000.000.500.140.290.500.671.000.455.20
F0.430.000.000.000.000.000.000.170.400.000.000.000.000.000.000.000.000.000.000.170.000.000.000.000.000.710.861.170.830.800.182.13
G0.710.710.750.000.000.000.200.170.400.001.201.000.670.170.400.330.000.000.000.170.400.200.200.000.130.430.570.330.670.800.354.08
H0.000.000.000.000.000.000.000.000.000.330.000.000.000.000.000.000.000.000.000.000.000.000.000.170.130.000.000.000.000.000.020.24
I2.141.571.251.201.672.503.201.331.602.002.802.832.672.503.602.000.501.331.171.832.001.601.601.000.130.000.290.170.000.001.5517.86
x1.431.570.752.001.172.171.001.831.602.001.201.331.671.332.202.003.177.673.335.173.803.803.003.003.632.573.715.333.172.002.6230.21
r0.000.000.130.200.670.330.600.000.400.330.000.000.330.170.400.000.170.000.000.170.600.200.200.000.000.000.140.500.170.200.202.27
s3.002.863.752.802.333.503.202.671.801.673.004.003.834.005.203.833.002.331.831.673.202.804.403.670.880.431.291.331.171.002.6830.91
a3.573.432.504.403.332.671.202.672.403.674.002.833.834.832.401.671.330.671.171.331.401.001.001.832.753.861.861.172.001.602.4127.81
h0.430.570.500.200.000.000.000.500.200.000.000.000.000.000.000.000.000.000.000.000.000.400.200.000.000.000.000.000.000.000.101.15
k0.710.570.751.601.501.171.801.001.600.670.200.330.170.000.000.170.000.330.170.330.200.000.000.330.881.001.001.001.001.400.667.64
x3.142.711.381.802.003.503.602.502.603.334.003.503.503.004.803.832.005.002.175.333.802.201.802.172.751.861.292.501.171.202.8132.45
o3.144.865.507.405.174.172.403.173.204.333.804.505.676.174.602.835.335.333.332.504.805.206.406.174.885.005.294.674.002.004.5352.20
i2.861.431.381.401.672.171.803.002.200.670.600.500.671.170.801.000.330.671.000.830.600.800.600.500.000.291.141.501.832.401.1913.76
c0.000.000.130.600.170.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.500.710.290.670.500.600.141.60
CV168.14156.57167.25191.60149.00138.83147.40168.83155.80116.00119.80127.67137.33139.17118.2092.1765.6765.6754.3362.0075.6074.2088.4090.00100.88121.29112.14115.67128.50137.20119.51100
CVn65.0062.4356.1356.4043.5029.675.0020.8329.4022.3324.8031.0048.5064.8348.2038.1733.5047.6740.8343.8350.2050.0044.6030.8326.0024.2913.1413.1725.0025.4037.1531.09
CVs103.1494.14111.13135.20105.50109.17142.40148.00126.4093.6795.0096.6788.8374.3370.0054.0032.1718.0013.5018.1725.4024.2043.8059.1774.8897.0099.00102.50103.50111.8082.3668.91