group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
8.94 | 49.48 | 4.99 | 27.74 | -3.30 | 160.68 | -26.77 | 106.37 | 0.4702 | 928.2 | 557.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
8.94 | 46.35 | 4.99 | 25.88 | -3.28 | 161.09 | -26.36 | 106.55 | 0.4644 | 1280.8 | 597.0 | |
0.00 | 2.00 | 0.00 | 1.13 | -2.38 | 159.30 | -28.15 | 103.71 | 0.4872 | 715.0 | 518.9 | |
0.00 | 1.13 | 0.00 | 0.73 | -5.42 | 148.40 | -39.06 | 104.19 | 0.6493 | -618.0 | -502.5 |
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. |