group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
31 | 111 | 32 | 114 | -6.81 | 53.97 | 59.82 | 258.66 | 0.8773 | 3.9 | -73.1 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
12 | 54 | 13 | 58 | -7.73 | 55.16 | 61.01 | 257.89 | 0.8884 | -672.7 | -512.3 | |
1 | -1 | 1 | -1 | -8.09 | 55.08 | 60.93 | 257.47 | 0.8884 | -594.3 | 999999 | |
3 | -1 | 3 | -1 | -7.85 | 54.69 | 60.54 | 257.65 | 0.8849 | -941.6 | 999999 | |
15 | 57 | 15 | 56 | -5.81 | 52.84 | 58.69 | 259.53 | 0.8664 | 819.1 | 365.1 | |
-4 | -4 | -4 | -4 | -5.98 | 52.49 | 58.34 | 259.27 | 0.8636 | 999999 | 999999 |
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. |