group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 42 | 0 | 24 | 11.10 | 221.67 | 26.54 | 281.32 | 0.4490 | 744.8 | 617.0 |
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back to the solar disc SOHO MDI 2000-08-19 04:47:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 3 | 0 | 2 | 10.63 | 224.57 | 29.45 | 279.48 | 0.4920 | 704.0 | 694.3 | |
0 | 7 | 0 | 4 | 11.16 | 224.31 | 29.19 | 280.61 | 0.4888 | 1109.0 | 669.7 | |
0 | 5 | 0 | 3 | 10.81 | 224.18 | 29.06 | 279.92 | 0.4863 | 719.0 | 641.9 | |
0 | 5 | 0 | 3 | 7.89 | 223.28 | 28.16 | 273.90 | 0.4704 | 789.0 | 570.2 | |
0 | 3 | 0 | 2 | 11.28 | 222.22 | 27.10 | 281.35 | 0.4576 | 744.0 | 691.7 | |
0 | 4 | 0 | 2 | 13.85 | 221.70 | 26.58 | 287.11 | 0.4564 | 403.0 | 386.2 | |
0 | 5 | 0 | 3 | 12.23 | 220.57 | 25.45 | 284.01 | 0.4346 | 774.0 | 635.7 | |
0 | 10 | 0 | 5 | 11.48 | 216.33 | 21.21 | 283.98 | 0.3669 | 716.0 | 608.4 |
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. |