group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 25 | 0 | 17 | 11.98 | 222.30 | -42.08 | 80.11 | 0.6667 | 192.4 | 10.5 |
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back to the solar disc SOHO MDI 2000-09-10 04:47:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 2 | 11.75 | 230.00 | -34.38 | 79.75 | 0.5640 | 813.0 | 741.1 | |
0 | 6 | 0 | 4 | 9.14 | 225.12 | -39.26 | 84.42 | 0.6301 | 663.0 | 517.4 | |
0 | 5 | 0 | 3 | 15.34 | 223.02 | -41.36 | 74.97 | 0.6621 | 580.0 | 422.8 | |
0 | 5 | 0 | 4 | 12.37 | 219.89 | -44.49 | 79.68 | 0.6981 | -671.0 | -608.8 | |
0 | 5 | 0 | 4 | 12.04 | 217.49 | -46.89 | 80.26 | 0.7268 | -423.0 | -551.5 |
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. |