group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1 | 58 | 2 | 98 | 16.80 | 308.16 | 73.41 | 286.15 | 0.9540 | 305.8 | 169.5 |
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back to the solar disc SOHO MDI 2000-07-19 23:59:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 6 | 0 | 16 | 17.26 | 314.58 | 79.84 | 286.66 | 0.9820 | -78.0 | -163.5 | |
0 | 10 | 0 | 20 | 14.80 | 310.81 | 76.07 | 284.05 | 0.9684 | 89.0 | 86.0 | |
1 | 11 | 2 | 19 | 17.40 | 308.78 | 74.03 | 286.72 | 0.9592 | 378.3 | 348.9 | |
0 | 21 | 0 | 30 | 17.65 | 305.55 | 70.80 | 287.02 | 0.9426 | 663.0 | 478.9 | |
0 | 10 | 0 | 13 | 16.50 | 301.29 | 66.54 | 285.90 | 0.9163 | -176.0 | -268.2 |
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. |