group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
32 | 224 | 96 | 647 | 26.07 | 101.91 | 77.31 | 297.23 | 0.9852 | 10.7 | 108.1 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
30 | 200 | 93 | 613 | 26.01 | 102.57 | 77.97 | 297.04 | 0.9876 | 15.9 | 121.9 | |
2 | 13 | 3 | 18 | 25.93 | 90.46 | 65.86 | 299.16 | 0.9413 | -115.3 | -73.9 | |
0 | 2 | 0 | 3 | 26.30 | 89.18 | 64.58 | 299.85 | 0.9351 | -294.0 | -280.9 | |
0 | 9 | 0 | 13 | 29.22 | 89.75 | 65.15 | 302.71 | 0.9426 | -197.0 | -202.0 |
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. |