group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 8.15 | 0.00 | 4.57 | 17.41 | 223.11 | 18.60 | 319.19 | 0.4682 | 415.4 | 384.9 |
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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 | 0.72 | 13.61 | 229.57 | 25.06 | 304.62 | 0.5023 | -708.0 | -540.4 | |
0.00 | 1.34 | 0.00 | 0.76 | 18.38 | 223.66 | 19.15 | 319.54 | 0.4817 | 528.0 | 495.9 | |
0.00 | 0.72 | 0.00 | 0.41 | 19.00 | 223.56 | 19.06 | 320.55 | 0.4877 | 605.0 | 523.6 | |
0.00 | 1.79 | 0.00 | 1.00 | 17.76 | 223.12 | 18.61 | 319.43 | 0.4692 | 842.0 | 691.1 | |
0.00 | 3.05 | 0.00 | 1.68 | 17.99 | 219.98 | 15.47 | 324.80 | 0.4420 | 810.0 | 513.5 |
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. |