| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 16 | 181 | 24 | 291 | 13.12 | 356.80 | -73.17 | 78.43 | 0.9503 | 431.3 | 109.3 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-28 15:59:31 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 13 | 128 | 18 | 176 | 13.71 | 359.95 | -70.02 | 78.02 | 0.9349 | 720.5 | 237.9 | |
| 0 | 13 | 0 | 21 | 12.37 | 356.14 | -73.82 | 79.21 | 0.9563 | 216.0 | 136.9 | |
| 0 | 1 | 0 | 2 | 13.23 | 351.78 | -78.19 | 78.02 | 0.9751 | -194.0 | -195.3 | |
| 3 | 26 | 6 | 55 | 11.99 | 352.30 | -77.66 | 79.32 | 0.9735 | -405.0 | -321.6 | |
| 0 | 13 | 0 | 37 | 12.42 | 349.15 | -80.82 | 78.62 | 0.9842 | 328.0 | 139.1 | |
| 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. |
||
| 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. | |