group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
17 | 60 | 10 | 35 | -2.59 | 261.05 | 28.98 | 275.75 | 0.4885 | -383.6 | -86.0 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
12 | 24 | 7 | 14 | -2.72 | 262.98 | 30.91 | 274.95 | 0.5172 | -1191.5 | -887.0 | |
0 | 3 | 0 | 2 | -1.90 | 262.92 | 30.85 | 276.54 | 0.5179 | -557.0 | -471.0 | |
0 | 5 | 0 | 3 | -2.31 | 262.56 | 30.49 | 275.85 | 0.5118 | -860.0 | -624.5 | |
0 | 3 | 0 | 2 | -5.52 | 259.29 | 27.22 | 269.86 | 0.4573 | 766.0 | 651.2 | |
0 | 3 | 0 | 2 | -1.09 | 259.12 | 27.05 | 279.53 | 0.4630 | 748.0 | 719.3 | |
0 | 7 | 0 | 4 | -2.34 | 259.05 | 26.98 | 276.87 | 0.4585 | 873.0 | 880.0 | |
5 | 11 | 3 | 6 | -2.59 | 258.66 | 26.59 | 276.45 | 0.4519 | 1246.3 | 842.7 | |
0 | 4 | 0 | 2 | -1.83 | 258.34 | 26.27 | 278.25 | 0.4489 | 559.0 | 453.3 |
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. |