group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 9.76 | 0.00 | 5.22 | 15.86 | 226.15 | 8.42 | 336.84 | 0.3711 | 333.6 | 305.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 0.90 | 0.00 | 0.49 | 12.78 | 235.56 | 17.83 | 312.60 | 0.4073 | -717.0 | -545.9 | |
0.00 | 0.90 | 0.00 | 0.48 | 11.17 | 234.99 | 17.26 | 310.38 | 0.3838 | 781.0 | 643.6 | |
0.00 | 1.52 | 0.00 | 0.81 | 13.73 | 229.76 | 12.03 | 325.27 | 0.3568 | -797.0 | -730.5 | |
0.00 | 1.79 | 0.00 | 0.95 | 16.01 | 225.57 | 7.84 | 338.36 | 0.3571 | 873.0 | 666.2 | |
0.00 | 0.98 | 0.00 | 0.53 | 18.55 | 223.11 | 5.38 | 346.57 | 0.3843 | 595.0 | 522.6 | |
0.00 | 1.25 | 0.00 | 0.67 | 17.41 | 222.98 | 5.25 | 346.14 | 0.3659 | 786.0 | 617.6 | |
0.00 | 2.42 | 0.00 | 1.29 | 18.08 | 220.35 | 2.62 | 353.21 | 0.3690 | 814.0 | 631.5 |
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. |