group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 27 | 0 | 37 | -12.67 | 7.39 | 66.85 | 253.76 | 0.9358 | -207.2 | -171.0 |
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back to the solar disc SOHO MDI 2000-08-11 05:29:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 3 | 0 | 4 | -14.06 | 8.82 | 68.27 | 252.62 | 0.9456 | -269.0 | -238.1 | |
0 | 11 | 0 | 16 | -12.32 | 7.28 | 66.74 | 254.10 | 0.9348 | -273.0 | -147.5 | |
0 | 8 | 0 | 10 | -11.67 | 6.96 | 66.41 | 254.71 | 0.9320 | -168.0 | -200.9 | |
0 | 5 | 0 | 7 | -14.12 | 7.45 | 66.90 | 252.26 | 0.9381 | -119.0 | -143.6 |
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. |
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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. |