group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
28 | 83 | 14 | 43 | -9.31 | 330.88 | -9.81 | 144.99 | 0.2951 | -1557.4 | -757.9 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-10-28 23:59:32 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 9 | 0 | 5 | -11.01 | 335.17 | -5.52 | 160.64 | 0.2860 | -784.0 | -621.5 | |
28 | 74 | 14 | 38 | -9.11 | 330.48 | -10.21 | 143.39 | 0.2949 | -1568.4 | -775.8 | |
-2 | -2 | -2 | -2 | -9.07 | 330.16 | -10.53 | 142.48 | 0.2976 | 999999 | 999999 |
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. |