group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
30 | 98 | 16 | 50 | -9.38 | 330.18 | -9.64 | 145.67 | 0.2939 | -1509.6 | -652.4 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 6 | 0 | 3 | -11.13 | 335.24 | -4.58 | 163.87 | 0.2830 | -911.0 | -725.7 | |
30 | 76 | 16 | 39 | -9.14 | 330.51 | -9.31 | 145.96 | 0.2865 | -1544.0 | -706.4 | |
-2 | -2 | -2 | -2 | -9.07 | 330.19 | -9.62 | 144.92 | 0.2885 | 999999 | 999999 | |
0 | 6 | 0 | 3 | -8.82 | 328.57 | -11.24 | 140.10 | 0.3016 | -594.0 | -660.9 | |
0 | 10 | 0 | 5 | -10.80 | 326.74 | -13.07 | 139.84 | 0.3460 | -272.0 | -182.5 |
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. |