group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
55.12 | 304.88 | 53.39 | 293.98 | -17.61 | 58.77 | -54.22 | 115.55 | 0.8588 | 566.4 | 120.9 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
50.87 | 292.74 | 48.56 | 280.34 | -17.65 | 59.04 | -53.95 | 115.68 | 0.8568 | 711.2 | 137.1 | |
0.00 | 0.97 | 0.00 | 0.98 | -18.90 | 57.52 | -55.47 | 116.45 | 0.8726 | 297.0 | 236.9 | |
0.35 | 0.97 | 0.40 | 1.10 | -16.99 | 53.07 | -59.92 | 112.89 | 0.9001 | -436.0 | -433.4 | |
0.53 | 1.77 | 0.61 | 2.03 | -17.42 | 52.71 | -60.28 | 113.23 | 0.9035 | -481.8 | -386.8 | |
0.00 | 2.22 | 0.00 | 2.48 | -16.57 | 53.11 | -59.88 | 112.45 | 0.8989 | -604.0 | -501.5 | |
2.75 | 4.17 | 3.11 | 4.72 | -16.38 | 52.76 | -60.23 | 112.14 | 0.9009 | -376.2 | -317.7 | |
0.62 | 2.04 | 0.71 | 2.33 | -16.69 | 52.60 | -60.39 | 112.42 | 0.9027 | -298.7 | -201.2 |
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. |