group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3 | 55 | 1 | 28 | -6.57 | 62.63 | -10.48 | 140.03 | 0.2817 | -345.9 | 176.5 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3 | 10 | 1 | 5 | -5.83 | 64.94 | -8.17 | 144.98 | 0.2474 | -1133.6 | -882.0 | |
0 | 12 | 0 | 6 | -7.06 | 64.07 | -9.03 | 144.98 | 0.2728 | -809.0 | -659.7 | |
0 | 4 | 0 | 2 | -6.60 | 62.31 | -10.80 | 139.00 | 0.2850 | 548.0 | 407.1 | |
0 | 7 | 0 | 4 | -6.57 | 61.78 | -11.33 | 137.57 | 0.2905 | 595.0 | 650.2 | |
0 | 18 | 0 | 9 | -6.63 | 61.21 | -11.90 | 136.28 | 0.2976 | 1156.0 | 955.1 | |
0 | 4 | 0 | 2 | -6.67 | 60.89 | -12.22 | 135.61 | 0.3019 | 719.0 | 649.4 |
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. |