group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
36 | 99 | 18 | 48 | -2.45 | 259.86 | -3.69 | 51.87 | 0.0999 | 9.8 | 19.6 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 7 | 0 | 3 | -8.30 | 263.92 | 0.36 | 190.11 | 0.0357 | 334.0 | 432.2 | |
19 | 41 | 9 | 21 | -1.56 | 260.84 | -2.72 | 29.89 | 0.0955 | -1453.0 | -826.8 | |
0 | 5 | 0 | 2 | -1.91 | 259.87 | -3.69 | 40.13 | 0.1003 | -351.0 | -360.5 | |
0 | 3 | 0 | 1 | -7.19 | 259.21 | -4.35 | 102.00 | 0.0772 | 559.0 | 462.0 | |
17 | 43 | 9 | 21 | -2.32 | 258.34 | -5.21 | 52.83 | 0.1145 | 1461.3 | 822.2 |
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. |