group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
5.72 | 14.70 | 5.58 | 14.38 | -14.74 | 253.56 | 57.63 | 251.54 | 0.8631 | 636.4 | 439.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.64 | 9.62 | 0.62 | 9.40 | -14.63 | 253.72 | 57.78 | 251.70 | 0.8642 | 577.0 | 397.9 | |
2.72 | 3.99 | 2.67 | 3.92 | -15.07 | 253.73 | 57.79 | 251.20 | 0.8651 | 537.7 | 465.1 | |
2.36 | -1.00 | 2.29 | -1.00 | -14.59 | 253.46 | 57.53 | 251.69 | 0.8620 | 738.9 | 999999 | |
0.00 | 1.09 | 0.00 | 1.06 | -14.84 | 253.39 | 57.46 | 251.39 | 0.8618 | 702.0 | 665.7 |
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. |