group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
44 | 137 | 22 | 69 | -1.92 | 259.93 | 0.60 | 352.07 | 0.0766 | -292.4 | 43.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
26 | 62 | 13 | 31 | -1.82 | 261.43 | 2.11 | 334.68 | 0.0863 | -1556.7 | -906.7 | |
0 | 11 | 0 | 6 | -0.45 | 259.72 | 0.39 | 356.12 | 0.1021 | 872.0 | 646.2 | |
0 | 6 | 0 | 3 | -2.25 | 259.64 | 0.32 | 355.50 | 0.0707 | 736.0 | 452.7 | |
4 | 58 | 2 | 29 | -2.17 | 258.79 | -0.54 | 7.49 | 0.0725 | 1221.1 | 892.6 | |
14 | -4 | 7 | -4 | -2.33 | 258.28 | -1.05 | 14.83 | 0.0715 | 1560.5 | 999999 |
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. |