group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 8.07 | 0.00 | 4.65 | 18.06 | 222.53 | 22.43 | 314.67 | 0.5116 | 676.8 | 624.8 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.70 | 0.00 | 0.99 | 18.41 | 223.58 | 23.48 | 313.86 | 0.5262 | 612.0 | 564.3 | |
0.00 | 2.24 | 0.00 | 1.30 | 17.95 | 223.41 | 23.31 | 313.39 | 0.5200 | 741.0 | 754.7 | |
0.00 | 0.99 | 0.00 | 0.57 | 18.51 | 223.42 | 23.31 | 314.18 | 0.5254 | 730.0 | 507.5 | |
0.00 | 0.72 | 0.00 | 0.42 | 18.31 | 223.29 | 23.18 | 314.05 | 0.5221 | 467.0 | 435.2 | |
0.00 | 1.17 | 0.00 | 0.66 | 17.31 | 220.62 | 20.52 | 315.98 | 0.4834 | 718.0 | 693.0 | |
0.00 | 1.25 | 0.00 | 0.71 | 17.98 | 220.09 | 19.98 | 317.71 | 0.4850 | 793.0 | 613.9 |
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. |