group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1.55 | 7.69 | 3.49 | 17.50 | 25.00 | 217.04 | 72.38 | 297.71 | 0.9768 | -103.4 | -82.9 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 0.86 | 0.00 | 2.05 | 25.10 | 217.63 | 72.98 | 297.69 | 0.9788 | 340.0 | 306.5 | |
0.00 | 1.47 | 0.00 | 3.39 | 24.85 | 217.25 | 72.60 | 297.52 | 0.9773 | 63.0 | 99.6 | |
0.86 | 5.36 | 1.93 | 12.06 | 24.84 | 216.91 | 72.25 | 297.59 | 0.9762 | -319.6 | -248.0 | |
0.69 | -3.00 | 1.56 | -3.00 | 25.24 | 216.84 | 72.18 | 298.00 | 0.9764 | -226.9 | 999999 |
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. |