group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
8 | 70 | 7 | 59 | -7.35 | 53.67 | 52.48 | 256.25 | 0.8120 | -343.8 | -230.6 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1 | 47 | 1 | 40 | -7.73 | 55.11 | 53.92 | 256.18 | 0.8268 | -725.0 | -587.1 | |
5 | -1 | 5 | -1 | -7.86 | 53.86 | 52.66 | 255.68 | 0.8151 | -740.5 | 999999 | |
2 | 13 | 1 | 11 | -6.53 | 53.05 | 51.86 | 257.05 | 0.8040 | 123.4 | 287.4 | |
0 | 7 | 0 | 6 | -5.89 | 52.64 | 51.45 | 257.72 | 0.7983 | 883.0 | 703.0 | |
0 | 3 | 0 | 2 | -6.34 | 52.26 | 51.06 | 257.06 | 0.7954 | 327.0 | 541.1 |
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. |