| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4 | 42 | 2 | 21 | -8.60 | 145.80 | -16.60 | 131.25 | 0.3757 | -535.7 | 242.8 | |
|
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2002-07-31 20:47:32 UT ![]() |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4 | 10 | 2 | 5 | -8.89 | 149.26 | -13.14 | 138.15 | 0.3380 | -1119.0 | -749.6 | |
| 0 | 10 | 0 | 5 | -7.67 | 147.65 | -14.74 | 132.29 | 0.3423 | 1264.0 | 998.1 | |
| 0 | 6 | 0 | 3 | -8.85 | 144.90 | -17.50 | 129.86 | 0.3886 | -575.0 | -479.6 | |
| 0 | 6 | 0 | 3 | -8.65 | 143.35 | -19.05 | 127.08 | 0.4061 | 924.0 | 680.4 | |
| 0 | 4 | 0 | 2 | -8.84 | 142.66 | -19.74 | 126.47 | 0.4167 | 743.0 | 572.2 | |
| 0 | 6 | 0 | 3 | -9.18 | 142.38 | -20.01 | 126.74 | 0.4233 | 798.0 | 702.9 | |
| 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. | |