group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
55.30 | 290.49 | 54.42 | 284.34 | -17.64 | 58.75 | -54.79 | 115.35 | 0.8635 | 518.3 | 131.4 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
50.88 | 276.93 | 49.30 | 269.01 | -17.68 | 59.04 | -54.50 | 115.49 | 0.8614 | 665.7 | 148.9 | |
0.00 | 1.33 | 0.00 | 1.36 | -18.89 | 57.56 | -55.98 | 116.25 | 0.8764 | 267.0 | 159.3 | |
0.00 | 1.15 | 0.00 | 1.20 | -18.15 | 56.72 | -56.82 | 115.16 | 0.8806 | 127.0 | 132.5 | |
0.35 | 1.33 | 0.41 | 1.52 | -17.02 | 53.09 | -60.45 | 112.75 | 0.9038 | -504.2 | -490.5 | |
0.53 | 2.22 | 0.61 | 2.53 | -16.62 | 53.18 | -60.36 | 112.35 | 0.9023 | -480.5 | -460.2 | |
0.00 | 1.33 | 0.00 | 1.55 | -17.42 | 52.74 | -60.80 | 113.06 | 0.9070 | -490.0 | -420.3 | |
2.48 | 3.81 | 2.86 | 4.39 | -16.37 | 52.80 | -60.74 | 111.97 | 0.9044 | -414.2 | -377.4 | |
1.06 | 2.39 | 1.24 | 2.78 | -16.68 | 52.63 | -60.91 | 112.25 | 0.9062 | -205.0 | -135.9 |
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. |