| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 16 | 166 | 15 | 163 | 13.16 | 357.96 | -60.49 | 78.75 | 0.8657 | 874.1 | 12.4 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-09-25 19:11:31 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 16 | 96 | 15 | 91 | 13.76 | 359.27 | -59.18 | 78.07 | 0.8546 | 967.3 | 247.2 | |
| 0 | 9 | 0 | 8 | 11.96 | 359.18 | -59.27 | 80.18 | 0.8556 | 430.0 | 341.4 | |
| 0 | 4 | 0 | 4 | 12.67 | 357.94 | -60.50 | 79.33 | 0.8662 | 334.0 | 218.9 | |
| 0 | 5 | 0 | 5 | 12.44 | 357.21 | -61.24 | 79.59 | 0.8724 | 230.0 | 150.9 | |
| 0 | 4 | 0 | 4 | 12.58 | 356.65 | -61.80 | 79.42 | 0.8770 | -428.0 | -390.6 | |
| 0 | 20 | 0 | 21 | 12.90 | 356.34 | -62.11 | 79.04 | 0.8795 | -275.0 | -284.5 | |
| 0 | 11 | 0 | 12 | 12.20 | 355.68 | -62.77 | 79.83 | 0.8849 | -510.0 | -542.6 | |
| 0 | 17 | 0 | 18 | 12.01 | 354.69 | -63.76 | 80.01 | 0.8927 | -655.0 | -599.6 | |
| 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. | |