group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 11.84 | 0.00 | 7.08 | 17.48 | 224.06 | 27.24 | 308.72 | 0.5609 | 314.0 | 449.3 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 0.90 | 0.00 | 0.58 | 12.86 | 234.38 | 37.56 | 293.97 | 0.6527 | -614.0 | -488.9 | |
0.00 | 0.99 | 0.00 | 0.61 | 16.26 | 227.84 | 31.03 | 303.25 | 0.5939 | -574.0 | -461.7 | |
0.00 | 5.11 | 0.00 | 3.04 | 18.04 | 223.44 | 26.62 | 309.85 | 0.5571 | 714.0 | 620.2 | |
0.00 | 2.24 | 0.00 | 1.34 | 18.50 | 223.44 | 26.63 | 310.50 | 0.5611 | 696.0 | 618.2 | |
0.00 | 0.90 | 0.00 | 0.52 | 17.33 | 220.73 | 23.91 | 311.72 | 0.5205 | 782.0 | 615.1 | |
0.00 | 1.70 | 0.00 | 0.99 | 17.90 | 220.15 | 23.33 | 313.25 | 0.5195 | 880.0 | 721.2 |
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. |