| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20 | 104 | 14 | 75 | -9.48 | 22.95 | 42.84 | 249.22 | 0.7196 | -1131.6 | -580.0 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-09-04 11:11:31 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0 | 5 | 0 | 4 | -13.10 | 24.14 | 44.03 | 245.18 | 0.7482 | -500.0 | -305.0 | |
| 20 | 97 | 14 | 69 | -9.14 | 23.06 | 42.95 | 249.71 | 0.7195 | -1151.1 | -601.5 | |
| -2 | -2 | -2 | -2 | -9.31 | 22.71 | 42.60 | 249.32 | 0.7162 | 999999 | 999999 | |
| 0 | 2 | 0 | 2 | -10.86 | 22.64 | 42.53 | 247.27 | 0.7221 | -398.0 | -387.2 | |
| 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. |
||
| 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. |
||
| 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. | |