| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 25 | 130 | 26 | 140 | -30.34 | 20.59 | 61.79 | 238.81 | 0.8909 | -675.7 | -281.8 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-02-01 01:56:32 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9 | 43 | 10 | 49 | -28.84 | 22.61 | 63.81 | 240.78 | 0.9025 | -497.9 | -214.0 | |
| 0 | 3 | 0 | 3 | -30.05 | 20.18 | 61.37 | 239.08 | 0.8876 | -233.0 | -265.0 | |
| 0 | 2 | 0 | 2 | -30.36 | 20.13 | 61.33 | 238.73 | 0.8877 | -237.0 | -151.1 | |
| 16 | 82 | 16 | 86 | -31.20 | 19.47 | 60.66 | 237.68 | 0.8844 | -797.9 | -324.0 | |
| 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. | |