group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15 | 74 | 8 | 37 | -2.64 | 260.21 | -5.27 | 55.54 | 0.1120 | 427.0 | 38.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 2 | -7.48 | 269.21 | 3.73 | 252.18 | 0.0680 | 897.0 | 684.7 | |
0 | 4 | 0 | 2 | -6.99 | 265.09 | -0.39 | 150.40 | 0.0138 | 959.0 | 742.1 | |
6 | 32 | 3 | 16 | -1.32 | 260.30 | -5.18 | 46.21 | 0.1256 | -1084.2 | -725.4 | |
0 | 4 | 0 | 2 | -7.14 | 259.08 | -6.40 | 97.88 | 0.1121 | 723.0 | 441.5 | |
0 | 6 | 0 | 3 | -1.88 | 258.54 | -6.94 | 57.71 | 0.1435 | 403.0 | 313.3 | |
9 | 24 | 5 | 12 | -2.31 | 258.38 | -7.10 | 60.86 | 0.1420 | 1282.8 | 696.8 |
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. |