group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 6.45 | 0.00 | 4.24 | 15.30 | 227.37 | 36.64 | 298.24 | 0.6554 | 312.2 | 295.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.08 | 0.00 | 0.77 | 12.66 | 234.38 | 43.65 | 290.89 | 0.7231 | -693.0 | -606.6 | |
0.00 | 0.54 | 0.00 | 0.37 | 9.58 | 232.84 | 42.11 | 287.28 | 0.6947 | 604.0 | 496.0 | |
0.00 | 3.58 | 0.00 | 2.30 | 16.15 | 225.47 | 34.74 | 300.34 | 0.6365 | 683.0 | 502.6 | |
0.00 | 1.25 | 0.00 | 0.80 | 18.02 | 223.56 | 32.83 | 304.32 | 0.6266 | 655.0 | 477.1 |
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. |