group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
13.27 | 57.43 | 7.61 | 33.17 | -3.30 | 160.33 | -29.88 | 104.69 | 0.5156 | 772.8 | 446.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
13.27 | 51.88 | 7.61 | 29.70 | -3.21 | 161.06 | -29.15 | 104.86 | 0.5053 | 1154.1 | 515.8 | |
0.00 | 1.21 | 0.00 | 0.71 | -2.96 | 159.13 | -31.08 | 103.46 | 0.5322 | 707.0 | 516.2 | |
0.00 | 0.52 | 0.00 | 0.31 | -4.00 | 158.81 | -31.40 | 105.18 | 0.5406 | 719.0 | 540.3 | |
0.00 | 1.30 | 0.00 | 0.76 | -2.38 | 158.73 | -31.48 | 102.21 | 0.5360 | 505.0 | 413.9 | |
0.00 | 0.26 | 0.00 | 0.17 | -4.35 | 151.55 | -38.66 | 102.75 | 0.6410 | -416.0 | -460.3 | |
0.00 | 2.26 | 0.00 | 1.52 | -5.40 | 148.81 | -41.40 | 103.37 | 0.6791 | -553.0 | -506.3 |
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. |