| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0 | 12 | 0 | 14 | -24.94 | 71.03 | -62.75 | 115.52 | 0.8951 | -16.0 | -19.6 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-01-18 19:11:32 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0 | 4 | 0 | 4 | -24.76 | 71.78 | -62.01 | 115.43 | 0.8898 | -214.0 | -132.6 | |
| 0 | 4 | 0 | 5 | -26.08 | 69.78 | -64.00 | 116.63 | 0.9049 | 449.0 | 245.6 | |
| 0 | 4 | 0 | 5 | -23.93 | 71.69 | -62.10 | 114.49 | 0.8896 | -283.0 | -194.4 | |
| 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. | |