group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.62 | 34.08 | 7.98 | 17.54 | -3.63 | 159.87 | -12.75 | 123.56 | 0.2638 | 980.4 | 473.8 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15.62 | 26.20 | 7.98 | 13.38 | -3.52 | 161.10 | -11.52 | 125.25 | 0.2452 | 1214.9 | 603.6 | |
0.00 | 1.47 | 0.00 | 0.75 | -1.37 | 160.49 | -12.14 | 116.21 | 0.2353 | 1141.0 | 850.9 | |
0.00 | 0.78 | 0.00 | 0.40 | -1.19 | 160.40 | -12.23 | 115.35 | 0.2354 | 978.0 | 693.1 | |
0.00 | 0.69 | 0.00 | 0.36 | -4.42 | 159.59 | -13.03 | 124.74 | 0.2748 | 746.0 | 597.8 | |
0.00 | 1.56 | 0.00 | 0.81 | -4.60 | 159.34 | -13.28 | 124.78 | 0.2801 | 1057.0 | 920.9 | |
0.00 | 0.78 | 0.00 | 0.40 | -4.52 | 159.13 | -13.49 | 124.10 | 0.2822 | 813.0 | 738.7 | |
0.00 | 2.60 | 0.00 | 1.44 | -5.57 | 148.56 | -24.06 | 112.83 | 0.4422 | -724.0 | -629.3 |
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. |