group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1.16 | 7.96 | 0.64 | 4.51 | 15.41 | 229.89 | 21.51 | 312.27 | 0.4828 | -445.9 | -396.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.07 | 0.00 | 0.62 | 12.75 | 235.21 | 26.82 | 301.46 | 0.5180 | -671.0 | -523.9 | |
0.00 | 2.51 | 0.00 | 1.44 | 12.69 | 234.19 | 25.81 | 302.32 | 0.5047 | -667.0 | -617.5 | |
0.00 | 0.98 | 0.00 | 0.55 | 13.52 | 229.40 | 21.01 | 309.22 | 0.4519 | -599.0 | -494.6 | |
0.00 | 1.43 | 0.00 | 0.82 | 20.48 | 227.44 | 19.06 | 322.54 | 0.5050 | -627.0 | -516.2 | |
1.16 | 1.97 | 0.64 | 1.08 | 17.66 | 223.22 | 14.84 | 325.48 | 0.4324 | 773.6 | 847.2 |
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. |