group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
2 | 62 | 3 | 99 | 16.82 | 307.88 | 72.25 | 286.16 | 0.9485 | 291.7 | 191.6 |
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back to the solar disc SOHO MDI 2000-07-19 22:23:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 5 | 0 | 12 | 17.17 | 314.52 | 78.89 | 286.55 | 0.9790 | -165.0 | -164.0 | |
0 | 10 | 0 | 19 | 15.00 | 310.81 | 75.18 | 284.24 | 0.9646 | 1.0 | 75.1 | |
2 | 12 | 3 | 20 | 17.38 | 308.83 | 73.20 | 286.71 | 0.9552 | 368.6 | 343.3 | |
0 | 24 | 0 | 35 | 17.53 | 305.88 | 70.25 | 286.91 | 0.9395 | 676.0 | 469.7 | |
0 | 11 | 0 | 13 | 16.35 | 301.41 | 65.78 | 285.77 | 0.9110 | -498.0 | -292.0 |
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. |