group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 8.68 | 0.00 | 4.70 | 16.84 | 224.74 | 12.51 | 328.75 | 0.4049 | 528.2 | 423.1 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.43 | 0.00 | 0.78 | 13.70 | 229.80 | 17.57 | 314.57 | 0.4134 | -876.0 | -691.5 | |
0.00 | 1.43 | 0.00 | 0.77 | 15.13 | 225.91 | 13.68 | 323.96 | 0.3897 | 877.0 | 692.3 | |
0.00 | 0.99 | 0.00 | 0.54 | 18.98 | 223.64 | 11.41 | 333.62 | 0.4228 | 585.0 | 448.3 | |
0.00 | 1.16 | 0.00 | 0.63 | 17.45 | 223.35 | 11.12 | 332.44 | 0.3991 | 806.0 | 642.8 | |
0.00 | 1.97 | 0.00 | 1.06 | 17.64 | 223.23 | 11.00 | 332.92 | 0.4010 | 971.0 | 708.1 | |
0.00 | 1.70 | 0.00 | 0.92 | 18.35 | 222.82 | 10.59 | 334.59 | 0.4082 | 806.0 | 646.2 |
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. |