group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
23 | 83 | 13 | 45 | 5.61 | 331.85 | 27.39 | 269.66 | 0.4596 | 198.6 | 135.8 |
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back to the solar disc SOHO MDI 2000-08-10 22:23:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
13 | 25 | 7 | 14 | 5.70 | 333.24 | 28.78 | 270.04 | 0.4810 | 1162.7 | 647.7 | |
0 | 6 | 0 | 3 | 5.12 | 332.39 | 27.93 | 268.68 | 0.4686 | 798.0 | 659.5 | |
0 | 4 | 0 | 2 | 4.94 | 331.98 | 27.52 | 268.24 | 0.4625 | 466.0 | 446.1 | |
0 | 8 | 0 | 4 | 5.88 | 331.45 | 26.99 | 270.21 | 0.4533 | -785.0 | -596.3 | |
10 | 40 | 6 | 22 | 5.63 | 330.95 | 26.49 | 269.59 | 0.4457 | -922.2 | -156.5 |
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. |