| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 52 | 247 | 151 | 617 | 9.65 | 312.91 | 78.08 | 280.13 | 0.9743 | -216.7 | -31.1 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 1999-12-14 19:11:32 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23 | 107 | 91 | 423 | 9.05 | 317.44 | 82.61 | 279.24 | 0.9928 | -141.5 | 21.4 | |
| 8 | -1 | 31 | -1 | 9.87 | 317.27 | 82.45 | 280.06 | 0.9925 | -3.1 | 999999 | |
| 5 | 134 | 7 | 186 | 10.15 | 303.47 | 68.64 | 281.22 | 0.9362 | -568.8 | -143.6 | |
| 8 | -3 | 11 | -3 | 10.78 | 303.33 | 68.51 | 281.89 | 0.9357 | -658.2 | 999999 | |
| 8 | -3 | 11 | -3 | 10.46 | 303.07 | 68.25 | 281.58 | 0.9339 | -820.1 | 999999 | |
| 0 | 6 | 0 | 8 | 10.14 | 299.95 | 65.13 | 281.55 | 0.9133 | 285.0 | 204.5 | |
| 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. | |