group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.07 | 51.53 | 11.61 | 39.71 | -14.80 | 253.46 | 47.62 | 248.77 | 0.7685 | 830.0 | 456.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1.00 | 51.53 | 0.77 | 39.71 | -14.58 | 253.69 | 47.85 | 249.13 | 0.7701 | 486.5 | 456.7 | |
0.91 | -1.00 | 0.70 | -1.00 | -14.80 | 253.75 | 47.91 | 248.87 | 0.7715 | 411.2 | 999999 | |
4.54 | -1.00 | 3.51 | -1.00 | -15.05 | 253.49 | 47.65 | 248.47 | 0.7695 | 774.1 | 999999 | |
8.62 | -1.00 | 6.63 | -1.00 | -14.70 | 253.39 | 47.55 | 248.88 | 0.7674 | 943.7 | 999999 |
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. |