group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
12.79 | 50.64 | 10.45 | 41.32 | -14.83 | 253.46 | 50.39 | 249.59 | 0.7968 | 664.5 | 407.8 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.72 | 0.00 | 1.43 | -15.12 | 254.02 | 50.95 | 249.41 | 0.8031 | -188.0 | -174.1 | |
3.90 | 47.74 | 3.20 | 38.96 | -15.07 | 253.61 | 50.53 | 249.34 | 0.7989 | 648.1 | 437.5 | |
8.89 | -2.00 | 7.25 | -2.00 | -14.69 | 253.43 | 50.36 | 249.76 | 0.7961 | 823.8 | 999999 | |
0.00 | 1.18 | 0.00 | 0.93 | -15.47 | 251.68 | 48.60 | 248.24 | 0.7806 | 415.0 | 390.5 |
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. |