group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 9.14 | 0.00 | 4.92 | 15.96 | 225.65 | 12.87 | 326.83 | 0.3958 | 240.2 | 236.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.25 | 0.00 | 0.68 | 13.72 | 229.83 | 17.05 | 315.47 | 0.4078 | -887.0 | -720.8 | |
0.00 | 1.52 | 0.00 | 0.82 | 15.02 | 227.61 | 14.84 | 321.57 | 0.3996 | -745.0 | -636.4 | |
0.00 | 2.87 | 0.00 | 1.54 | 15.15 | 225.88 | 13.10 | 325.16 | 0.3846 | 907.0 | 694.1 | |
0.00 | 1.43 | 0.00 | 0.77 | 17.76 | 223.27 | 10.49 | 334.14 | 0.3991 | 692.0 | 567.5 | |
0.00 | 0.99 | 0.00 | 0.53 | 17.46 | 223.12 | 10.34 | 334.12 | 0.3939 | 738.0 | 606.8 | |
0.00 | 1.08 | 0.00 | 0.58 | 18.27 | 222.81 | 10.03 | 335.68 | 0.4034 | 736.0 | 603.6 |
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. |