| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30 | 170 | 27 | 153 | -30.34 | 20.82 | 54.35 | 237.26 | 0.8359 | -747.9 | -308.4 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-01-31 11:58:32 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 11 | 57 | 10 | 52 | -29.13 | 22.52 | 56.05 | 239.08 | 0.8468 | -583.4 | -217.9 | |
| 0 | 2 | 0 | 2 | -30.28 | 23.27 | 56.80 | 237.92 | 0.8549 | 136.0 | 102.9 | |
| 0 | 4 | 0 | 4 | -29.22 | 21.49 | 55.02 | 238.75 | 0.8387 | -357.0 | -442.1 | |
| 0 | 3 | 0 | 3 | -29.60 | 20.43 | 53.95 | 238.04 | 0.8309 | -491.0 | -423.8 | |
| 10 | 104 | 9 | 92 | -30.94 | 19.91 | 53.44 | 236.34 | 0.8299 | -770.7 | -358.9 | |
| 9 | -5 | 8 | -5 | -31.26 | 19.65 | 53.18 | 235.89 | 0.8286 | -966.2 | 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. |
||
| 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. | |