group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 34 | 0 | 18 | -18.32 | 338.51 | -3.06 | 172.55 | 0.3999 | -501.0 | -454.4 |
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or next observation for the same group /
back to the solar disc SOHO MDI 2000-10-28 22:23:32 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 8 | 0 | 4 | -18.63 | 342.00 | 0.43 | 181.04 | 0.3962 | -1012.0 | -747.7 | |
0 | 2 | 0 | 1 | -21.13 | 341.56 | -0.01 | 179.97 | 0.4360 | -535.0 | -595.7 | |
0 | 5 | 0 | 3 | -18.67 | 341.23 | -0.34 | 179.19 | 0.3969 | -569.0 | -363.4 | |
0 | 4 | 0 | 2 | -19.56 | 340.00 | -1.57 | 176.40 | 0.4118 | -462.0 | -383.1 | |
0 | 4 | 0 | 2 | -18.04 | 339.57 | -2.00 | 175.08 | 0.3881 | -814.0 | -689.1 | |
0 | 4 | 0 | 2 | -17.26 | 337.52 | -4.05 | 169.73 | 0.3799 | 590.0 | 475.2 | |
0 | 7 | 0 | 4 | -17.08 | 331.43 | -10.14 | 155.43 | 0.4066 | -705.0 | -577.1 |
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. |