group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3.81 | 6.74 | 12.39 | 22.28 | 25.00 | 217.17 | 76.89 | 296.76 | 0.9893 | -24.9 | 25.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.38 | 0.00 | 4.74 | 24.72 | 217.56 | 77.27 | 296.42 | 0.9900 | 134.0 | 90.4 | |
0.00 | 0.43 | 0.00 | 1.47 | 24.92 | 217.51 | 77.23 | 296.62 | 0.9900 | 163.0 | 86.2 | |
1.56 | 4.93 | 5.19 | 16.07 | 25.16 | 217.25 | 76.97 | 296.90 | 0.9895 | 203.2 | -83.5 | |
2.25 | -3.00 | 7.20 | -3.00 | 25.04 | 216.87 | 76.58 | 296.86 | 0.9886 | -237.5 | 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. |