group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
13 | 50 | 7 | 28 | 19.79 | 15.39 | 17.26 | 318.58 | 0.4197 | 621.2 | 226.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
9 | 22 | 5 | 12 | 20.62 | 18.63 | 20.50 | 314.90 | 0.4647 | 1321.8 | 796.7 | |
0 | 6 | 0 | 4 | 22.77 | 15.95 | 17.83 | 322.01 | 0.4605 | -771.0 | -647.1 | |
4 | 11 | 2 | 6 | 22.28 | 15.63 | 17.50 | 321.78 | 0.4517 | -1053.0 | -803.0 | |
0 | 5 | 0 | 3 | 15.56 | 9.90 | 11.77 | 320.79 | 0.3124 | 842.0 | 613.5 | |
0 | 6 | 0 | 3 | 11.70 | 6.69 | 8.56 | 320.16 | 0.2286 | 1018.0 | 784.4 |
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. |