group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15 | 58 | 8 | 31 | -13.39 | 132.64 | -10.33 | 152.05 | 0.3690 | -1113.3 | -204.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 2 | -14.13 | 138.04 | -4.93 | 166.04 | 0.3467 | -828.0 | -657.0 | |
15 | 31 | 8 | 17 | -12.63 | 134.32 | -8.65 | 154.64 | 0.3440 | -1277.5 | -634.6 | |
0 | 4 | 0 | 2 | -13.32 | 132.89 | -10.07 | 152.04 | 0.3645 | -780.0 | -704.8 | |
0 | 6 | 0 | 3 | -13.72 | 129.63 | -13.33 | 145.52 | 0.3973 | 764.0 | 643.9 | |
0 | 8 | 0 | 4 | -15.22 | 128.27 | -14.69 | 145.06 | 0.4291 | 872.0 | 685.9 | |
0 | 5 | 0 | 3 | -14.46 | 128.20 | -14.76 | 143.86 | 0.4201 | 973.0 | 835.7 |
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. |