group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
4.20 | 17.61 | 2.18 | 9.31 | 15.30 | 226.67 | -6.49 | 17.94 | 0.3418 | 108.0 | 59.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
4.20 | 8.23 | 2.18 | 4.28 | 13.65 | 229.50 | -3.67 | 11.95 | 0.3017 | -1079.3 | -836.4 | |
0.00 | 1.61 | 0.00 | 0.84 | 14.01 | 227.58 | -5.58 | 17.49 | 0.3156 | -863.0 | -660.9 | |
0.00 | 1.52 | 0.00 | 0.80 | 14.06 | 225.35 | -7.81 | 23.72 | 0.3293 | 881.0 | 661.5 | |
0.00 | 1.34 | 0.00 | 0.72 | 16.88 | 224.86 | -8.31 | 21.74 | 0.3748 | 811.0 | 633.8 | |
0.00 | 0.89 | 0.00 | 0.48 | 17.84 | 222.98 | -10.18 | 24.94 | 0.4009 | 855.0 | 680.1 | |
0.00 | 2.95 | 0.00 | 1.60 | 18.03 | 222.78 | -10.39 | 25.16 | 0.4051 | 892.0 | 703.4 | |
0.00 | 1.07 | 0.00 | 0.59 | 19.44 | 222.46 | -10.71 | 24.31 | 0.4274 | 660.0 | 500.6 |
Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
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Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
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Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
B | - Heliographic latitude B; positive: North, negative: South | |
L | - Heliographic longitude L | |
LCM | - Longitudinal distance from the Sun's central meridian | |
Pos. angle | - Position angle | |
r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. |