group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
20 | 120 | 19 | 115 | -18.07 | 163.16 | -59.52 | 107.25 | 0.8591 | -63.6 | 104.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7 | 20 | 6 | 17 | -18.22 | 167.26 | -55.43 | 107.73 | 0.8233 | -794.7 | -620.8 | |
5 | 24 | 5 | 21 | -17.81 | 166.28 | -56.40 | 107.14 | 0.8321 | -531.6 | -313.7 | |
0 | 3 | 0 | 3 | -18.04 | 165.72 | -56.96 | 107.37 | 0.8374 | -229.0 | -269.8 | |
8 | 71 | 8 | 72 | -18.10 | 161.26 | -61.42 | 107.15 | 0.8756 | 773.3 | 408.7 | |
0 | 2 | 0 | 2 | -18.67 | 160.38 | -62.30 | 107.75 | 0.8827 | 258.0 | 268.9 |
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. |