group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
17 | 76 | 16 | 67 | -7.12 | 53.61 | 54.18 | 256.98 | 0.8279 | -333.5 | -95.1 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 4 | -7.70 | 55.30 | 55.86 | 256.72 | 0.8448 | -526.0 | -425.0 | |
11 | 38 | 10 | 34 | -7.89 | 54.27 | 54.84 | 256.24 | 0.8359 | -854.3 | -615.8 | |
2 | 34 | 2 | 29 | -6.31 | 52.90 | 53.47 | 257.74 | 0.8195 | 187.6 | 479.7 | |
3 | -3 | 3 | -3 | -5.95 | 52.52 | 53.08 | 258.07 | 0.8149 | 781.8 | 999999 | |
1 | -3 | 1 | -3 | -6.30 | 52.30 | 52.87 | 257.60 | 0.8135 | 678.3 | 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. |