group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
14 | 98 | 27 | 208 | -38.83 | 263.30 | 66.42 | 227.19 | 0.9723 | 285.7 | 86.8 |
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or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-19 01:35:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
2 | 30 | 4 | 84 | -37.80 | 268.37 | 71.49 | 229.57 | 0.9852 | -43.4 | 4.3 | |
12 | 66 | 23 | 121 | -39.50 | 259.88 | 63.00 | 225.60 | 0.9636 | 342.0 | 137.6 | |
0 | 2 | 0 | 3 | -40.59 | 259.41 | 62.53 | 224.41 | 0.9641 | 397.0 | 349.0 |
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. |