group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 5.12 | 0.00 | 3.41 | 14.47 | 228.61 | 38.43 | 296.12 | 0.6727 | 306.0 | 256.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.17 | 0.00 | 0.84 | 12.63 | 234.34 | 44.16 | 290.63 | 0.7287 | -680.0 | -533.2 | |
0.00 | 0.90 | 0.00 | 0.62 | 9.58 | 232.83 | 42.65 | 287.07 | 0.7012 | 538.0 | 395.8 | |
0.00 | 1.88 | 0.00 | 1.21 | 16.11 | 225.49 | 35.31 | 299.90 | 0.6429 | 672.0 | 555.0 | |
0.00 | 1.17 | 0.00 | 0.74 | 17.99 | 223.69 | 33.51 | 303.76 | 0.6339 | 694.0 | 544.9 |
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. |