group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15 | 57 | 9 | 31 | -2.46 | 261.16 | 28.21 | 276.29 | 0.4768 | -357.6 | -200.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
6 | 25 | 4 | 14 | -2.61 | 263.04 | 30.09 | 275.38 | 0.5052 | -1095.2 | -981.6 | |
0 | 4 | 0 | 2 | -1.88 | 262.94 | 29.99 | 276.85 | 0.5052 | -535.0 | -496.5 | |
3 | -1 | 2 | -1 | -2.82 | 262.82 | 29.87 | 275.03 | 0.5015 | -1304.1 | 999999 | |
0 | 4 | 0 | 2 | -2.33 | 262.59 | 29.64 | 276.07 | 0.4989 | -627.0 | -753.3 | |
0 | 7 | 0 | 4 | -2.27 | 259.01 | 26.06 | 277.35 | 0.4445 | 1019.0 | 897.1 | |
6 | 12 | 3 | 6 | -2.60 | 258.67 | 25.72 | 276.74 | 0.4384 | 1131.6 | 861.7 | |
0 | 5 | 0 | 3 | -1.83 | 258.40 | 25.45 | 278.58 | 0.4362 | 594.0 | 428.3 |
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. |