group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
9 | 50 | 13 | 66 | -11.71 | 234.12 | -65.93 | 105.45 | 0.9287 | 480.0 | 314.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 9 | 0 | 11 | -12.28 | 236.38 | -63.67 | 106.56 | 0.9154 | -251.0 | -134.0 | |
0 | 6 | 0 | 7 | -11.39 | 236.67 | -63.38 | 105.68 | 0.9120 | 506.0 | 458.2 | |
0 | 5 | 0 | 6 | -10.92 | 236.86 | -63.19 | 105.22 | 0.9100 | 504.0 | 450.8 | |
9 | 30 | 13 | 42 | -11.73 | 232.71 | -67.34 | 105.15 | 0.9376 | 490.5 | 388.1 |
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. |