group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3.31 | 14.85 | 1.72 | 7.78 | 15.02 | 227.94 | -3.01 | 8.49 | 0.3241 | -310.9 | -338.3 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 0.98 | 0.00 | 0.53 | 19.24 | 231.28 | 0.33 | 359.19 | 0.3870 | -712.0 | -584.7 | |
3.31 | 8.95 | 1.72 | 4.64 | 13.67 | 229.53 | -1.42 | 4.69 | 0.2962 | -1056.1 | -824.8 | |
0.00 | 0.36 | 0.00 | 0.19 | 13.92 | 228.47 | -2.48 | 8.03 | 0.3024 | -331.0 | -469.2 | |
0.00 | 1.25 | 0.00 | 0.65 | 14.24 | 227.46 | -3.49 | 11.00 | 0.3105 | -784.0 | -690.2 | |
0.00 | 1.07 | 0.00 | 0.57 | 17.09 | 223.09 | -7.86 | 20.49 | 0.3752 | 699.0 | 611.2 | |
0.00 | 2.24 | 0.00 | 1.20 | 18.00 | 222.79 | -8.16 | 20.31 | 0.3906 | 855.0 | 711.1 |
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. |