group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 25 | 0 | 17 | -14.77 | 233.42 | -34.48 | 123.07 | 0.6519 | 564.0 | 484.6 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 6 | 0 | 4 | -13.50 | 239.49 | -28.41 | 126.28 | 0.5761 | 654.0 | 529.9 | |
0 | 4 | 0 | 3 | -11.32 | 237.41 | -30.49 | 121.20 | 0.5839 | 636.0 | 498.3 | |
0 | 9 | 0 | 6 | -16.20 | 231.78 | -36.12 | 123.50 | 0.6812 | 424.0 | 420.5 | |
0 | 3 | 0 | 2 | -16.21 | 226.96 | -40.94 | 120.36 | 0.7315 | 695.0 | 664.1 | |
0 | 3 | 0 | 2 | -16.79 | 226.65 | -41.25 | 120.88 | 0.7378 | 411.0 | 386.4 |
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. |