group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 23 | 0 | 18 | -19.55 | 345.10 | -45.20 | 121.60 | 0.7873 | 107.2 | 16.0 |
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back to the solar disc SOHO MDI 2000-09-27 22:23:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 6 | 0 | 5 | -20.21 | 346.44 | -43.86 | 123.08 | 0.7783 | -701.0 | -486.6 | |
0 | 5 | 0 | 4 | -19.87 | 345.46 | -44.84 | 122.14 | 0.7855 | -135.0 | -188.3 | |
0 | 5 | 0 | 4 | -19.24 | 344.27 | -46.04 | 120.80 | 0.7934 | 697.0 | 595.9 | |
0 | 5 | 0 | 4 | -18.77 | 344.32 | -45.98 | 120.29 | 0.7908 | 356.0 | 211.1 | |
0 | 2 | 0 | 1 | -19.27 | 343.47 | -46.83 | 120.44 | 0.8007 | 319.0 | 245.4 |
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. |