group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 69 | 0 | 104 | 16.83 | 307.72 | 71.21 | 286.19 | 0.9428 | 139.0 | 204.2 |
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back to the solar disc SOHO MDI 2000-07-19 20:47:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 6 | 0 | 14 | 17.08 | 314.48 | 77.97 | 286.43 | 0.9757 | -280.0 | -171.3 | |
0 | 9 | 0 | 16 | 14.87 | 310.81 | 74.30 | 284.09 | 0.9606 | 152.0 | 96.0 | |
0 | 14 | 0 | 22 | 17.41 | 308.79 | 72.28 | 286.75 | 0.9505 | 460.0 | 375.8 | |
0 | 27 | 0 | 37 | 17.45 | 305.75 | 69.24 | 286.84 | 0.9336 | 604.0 | 499.6 | |
0 | 13 | 0 | 15 | 16.34 | 301.41 | 64.90 | 285.79 | 0.9048 | -241.0 | -310.1 |
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. |