group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 48 | 0 | 26 | -6.28 | 62.54 | -20.42 | 120.47 | 0.4037 | 112.8 | 249.0 |
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or next observation for the same group /
back to the solar disc SOHO MDI 2000-07-31 11:11:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 8 | 0 | 4 | -5.90 | 65.43 | -17.53 | 123.49 | 0.3609 | -800.0 | -641.9 | |
0 | 6 | 0 | 3 | -6.16 | 64.79 | -18.17 | 123.15 | 0.3718 | -661.0 | -542.0 | |
0 | 7 | 0 | 4 | -6.29 | 62.13 | -20.83 | 119.89 | 0.4094 | 599.0 | 528.8 | |
0 | 9 | 0 | 5 | -6.80 | 61.55 | -21.41 | 120.26 | 0.4214 | 786.0 | 526.5 | |
0 | 18 | 0 | 10 | -6.20 | 61.37 | -21.59 | 118.79 | 0.4193 | 640.0 | 591.9 |
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. |
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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. |