group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7.81 | 27.06 | 6.99 | 24.15 | -14.81 | 253.61 | 54.37 | 250.69 | 0.8347 | 692.3 | 497.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1.00 | 26.24 | 0.90 | 23.42 | -14.85 | 253.71 | 54.47 | 250.67 | 0.8357 | 588.4 | 497.9 | |
2.54 | -1.00 | 2.28 | -1.00 | -15.07 | 253.74 | 54.50 | 250.42 | 0.8365 | 614.9 | 999999 | |
4.27 | -1.00 | 3.81 | -1.00 | -14.62 | 253.52 | 54.28 | 250.89 | 0.8335 | 788.3 | 999999 | |
0.00 | 0.82 | 0.00 | 0.73 | -15.35 | 253.30 | 54.06 | 249.98 | 0.8331 | 597.0 | 481.1 |
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. |