group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.01 | 51.88 | 8.51 | 29.52 | -3.28 | 160.62 | -28.49 | 105.36 | 0.4956 | 861.2 | 537.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.01 | 45.90 | 8.51 | 26.00 | -3.27 | 161.04 | -28.07 | 105.55 | 0.4896 | 1142.2 | 577.2 | |
0.00 | 1.13 | 0.00 | 0.64 | -1.26 | 160.30 | -28.80 | 101.19 | 0.4930 | 583.0 | 446.1 | |
0.00 | 2.08 | 0.00 | 1.20 | -2.44 | 159.29 | -29.82 | 103.04 | 0.5120 | 738.0 | 630.5 | |
0.00 | 1.04 | 0.00 | 0.60 | -4.94 | 159.16 | -29.95 | 107.65 | 0.5241 | 661.0 | 517.3 | |
0.00 | 0.78 | 0.00 | 0.45 | -4.02 | 158.82 | -30.29 | 105.77 | 0.5249 | 640.0 | 550.8 | |
0.00 | 0.95 | 0.00 | 0.63 | -5.38 | 148.82 | -40.29 | 103.71 | 0.6651 | -708.0 | -647.9 |
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. |