group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
6.89 | 39.42 | 9.29 | 52.18 | -22.45 | 155.78 | 63.24 | 242.96 | 0.9273 | 432.8 | 59.8 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
6.89 | 35.41 | 9.29 | 48.06 | -22.49 | 156.42 | 63.88 | 243.13 | 0.9316 | 563.7 | 43.1 | |
0.00 | 0.52 | 0.00 | 0.61 | -24.22 | 151.48 | 58.94 | 239.83 | 0.9054 | 143.0 | 207.2 | |
0.00 | 2.62 | 0.00 | 2.74 | -21.48 | 149.21 | 56.67 | 241.95 | 0.8829 | 454.0 | 404.9 | |
0.00 | 0.87 | 0.00 | 0.77 | -22.21 | 142.34 | 49.80 | 238.44 | 0.8321 | -515.0 | -438.8 |
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. |