group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7.26 | 14.09 | 9.30 | 17.64 | 24.49 | 215.88 | 60.24 | 300.67 | 0.9199 | -254.5 | 17.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7.26 | 10.20 | 9.30 | 13.07 | 24.59 | 216.52 | 60.88 | 300.54 | 0.9240 | -403.8 | -214.1 | |
0.00 | 1.04 | 0.00 | 1.33 | 24.98 | 216.37 | 60.73 | 300.99 | 0.9240 | -372.0 | -318.0 | |
0.00 | 1.99 | 0.00 | 2.26 | 23.97 | 213.15 | 57.51 | 301.09 | 0.9020 | 491.0 | 432.5 | |
0.00 | 0.86 | 0.00 | 0.98 | 23.74 | 213.00 | 57.36 | 300.92 | 0.9003 | 507.0 | 409.9 |
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. |