group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
1 | 19 | 2 | 38 | -14.00 | 9.05 | 73.80 | 253.76 | 0.9709 | 89.8 | -107.0 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-11 15:05:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 9 | 0 | 21 | -14.00 | 10.91 | 75.66 | 254.11 | 0.9784 | -281.0 | -222.9 | |
0 | 3 | 0 | 5 | -12.43 | 7.25 | 72.00 | 255.04 | 0.9625 | -161.0 | -114.6 | |
1 | 7 | 2 | 12 | -14.67 | 6.55 | 71.29 | 252.62 | 0.9614 | 152.0 | 99.0 |
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. |