group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7 | 52 | 10 | 70 | 14.85 | 99.22 | 69.80 | 283.29 | 0.9326 | 224.9 | -25.8 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-09-27 23:59:32 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
7 | 41 | 10 | 58 | 15.17 | 100.37 | 70.95 | 283.70 | 0.9405 | 231.6 | -44.7 | |
0 | 7 | 0 | 8 | 17.07 | 96.65 | 67.22 | 285.69 | 0.9172 | -99.0 | 15.4 | |
0 | 4 | 0 | 4 | 5.73 | 87.75 | 58.33 | 272.51 | 0.8497 | 213.0 | 165.8 |
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. |