group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 7.35 | 0.00 | 4.60 | 17.62 | 224.77 | 31.82 | 304.63 | 0.6131 | 296.4 | 246.7 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0.00 | 1.88 | 0.00 | 1.21 | 15.91 | 227.97 | 35.02 | 299.84 | 0.6385 | -652.0 | -477.4 | |
0.00 | 0.90 | 0.00 | 0.56 | 18.21 | 223.96 | 31.02 | 306.04 | 0.6076 | 527.0 | 415.7 | |
0.00 | 0.90 | 0.00 | 0.56 | 18.62 | 223.79 | 30.84 | 306.77 | 0.6087 | 230.0 | 270.9 | |
0.00 | 2.51 | 0.00 | 1.55 | 18.00 | 223.55 | 30.60 | 306.09 | 0.6014 | 716.0 | 621.4 | |
0.00 | 1.16 | 0.00 | 0.72 | 18.42 | 223.41 | 30.46 | 306.80 | 0.6030 | 661.0 | 503.9 |
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. |