group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
11 | 42 | 11 | 38 | -19.84 | 280.35 | 57.67 | 250.56 | 0.8449 | 696.6 | 479.6 |
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back to the solar disc SOHO MDI 2000-04-02 23:59:33 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 7 | 0 | 7 | -20.64 | 281.83 | 59.14 | 249.76 | 0.8583 | 647.0 | 451.3 | |
3 | 32 | 3 | 29 | -19.25 | 280.13 | 57.45 | 251.23 | 0.8426 | 592.0 | 511.1 | |
4 | -2 | 4 | -2 | -19.55 | 279.99 | 57.31 | 250.86 | 0.8416 | 841.1 | 999999 | |
0 | 3 | 0 | 2 | -20.60 | 280.45 | 57.76 | 249.66 | 0.8465 | 194.0 | 121.5 | |
4 | -2 | 4 | -2 | -19.88 | 279.87 | 57.19 | 250.45 | 0.8408 | 658.3 | 999999 |
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. |