group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
39 | 195 | 26 | 132 | 19.11 | 257.52 | -42.53 | 68.90 | 0.6869 | 1093.5 | 458.0 |
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or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-11 06:23:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
19 | 195 | 13 | 132 | 18.96 | 257.84 | -42.21 | 69.03 | 0.6827 | 1352.1 | 458.0 | |
6 | -1 | 4 | -1 | 19.72 | 257.60 | -42.45 | 68.01 | 0.6875 | 671.1 | 999999 | |
14 | -1 | 9 | -1 | 19.06 | 257.01 | -43.04 | 69.10 | 0.6928 | 907.8 | 999999 |
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. |