group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
2 | 49 | 6 | 113 | -18.70 | 19.13 | 74.67 | 249.19 | 0.9771 | 83.5 | 8.2 |
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or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-10 22:23:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
2 | 25 | 6 | 70 | -18.87 | 21.25 | 76.79 | 249.43 | 0.9848 | 89.2 | 32.5 | |
0 | 18 | 0 | 34 | -18.24 | 16.39 | 71.93 | 249.13 | 0.9675 | -53.0 | -60.2 | |
0 | 6 | 0 | 9 | -19.10 | 12.97 | 68.51 | 247.50 | 0.9530 | 50.0 | 77.4 |
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. |
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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. |
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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. |