group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
25 | 174 | 13 | 91 | -13.18 | 26.04 | -4.26 | 168.10 | 0.3513 | -1658.5 | -652.3 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 8 | 0 | 4 | -11.69 | 28.92 | -1.38 | 175.74 | 0.3199 | -1030.0 | -808.6 | |
14 | 151 | 7 | 80 | -13.19 | 26.23 | -4.07 | 168.57 | 0.3505 | -1893.1 | -683.6 | |
11 | -2 | 6 | -2 | -13.24 | 25.91 | -4.39 | 167.72 | 0.3523 | -1601.0 | 999999 | |
0 | 4 | 0 | 2 | -13.08 | 24.83 | -5.48 | 164.71 | 0.3540 | -805.0 | -648.8 | |
0 | 3 | 0 | 1 | -13.38 | 24.74 | -5.56 | 164.70 | 0.3590 | -296.0 | -254.9 | |
0 | 4 | 0 | 2 | -13.13 | 24.34 | -5.96 | 163.47 | 0.3569 | -421.0 | -527.1 | |
0 | 4 | 0 | 2 | -15.09 | 22.02 | -8.29 | 159.49 | 0.3989 | 746.0 | 583.6 |
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. |