| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2 | 54 | 4 | 140 | 5.21 | 68.02 | 78.52 | 276.45 | 0.9830 | -83.3 | -95.5 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-01-29 18:02:32 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0 | 7 | 0 | 20 | 2.85 | 69.69 | 80.20 | 273.88 | 0.9872 | -20.0 | -27.2 | |
| 0 | 3 | 0 | 8 | 4.70 | 69.49 | 80.00 | 275.75 | 0.9872 | 192.0 | 160.5 | |
| 0 | 10 | 0 | 28 | 4.08 | 68.37 | 78.87 | 275.26 | 0.9837 | -347.0 | -217.6 | |
| 2 | 34 | 4 | 84 | 6.19 | 67.36 | 77.86 | 277.53 | 0.9813 | -87.0 | -95.4 | |
| 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. | |