group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
21 | 65 | 14 | 45 | 18.76 | 24.61 | 42.16 | 292.59 | 0.6905 | -366.2 | -39.2 |
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spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
4 | 12 | 3 | 8 | 18.43 | 26.38 | 43.93 | 291.57 | 0.7102 | 601.8 | 392.8 | |
0 | 3 | 0 | 2 | 18.34 | 25.90 | 43.45 | 291.58 | 0.7044 | 765.0 | 638.8 | |
3 | 17 | 2 | 12 | 19.13 | 26.05 | 43.60 | 292.64 | 0.7083 | 664.1 | 571.7 | |
0 | 5 | 0 | 4 | 19.09 | 23.65 | 41.20 | 293.37 | 0.6805 | -409.0 | -247.7 | |
14 | 28 | 9 | 19 | 18.65 | 23.03 | 40.58 | 292.94 | 0.6717 | -942.0 | -634.4 |
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. |