group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 28 | 0 | 16 | -13.90 | 317.83 | 17.78 | 220.83 | 0.4585 | -702.8 | -635.5 |
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back to the solar disc SOHO MDI 2000-08-11 06:23:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 2 | -12.48 | 320.42 | 20.37 | 226.87 | 0.4676 | -736.0 | -620.5 | |
0 | 5 | 0 | 3 | -12.73 | 320.27 | 20.22 | 226.27 | 0.4685 | -846.0 | -750.5 | |
0 | 4 | 0 | 2 | -13.05 | 320.04 | 19.99 | 225.43 | 0.4693 | -745.0 | -611.1 | |
0 | 5 | 0 | 3 | -11.12 | 318.57 | 18.52 | 226.37 | 0.4323 | -382.0 | -514.3 | |
0 | 10 | 0 | 6 | -16.63 | 314.64 | 14.59 | 211.80 | 0.4600 | -805.0 | -651.8 |
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. |