group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15 | 110 | 10 | 73 | -23.33 | 197.20 | -31.37 | 134.01 | 0.6669 | -1162.0 | -528.3 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-07-20 11:11:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
15 | 100 | 10 | 67 | -23.42 | 197.27 | -31.30 | 134.18 | 0.6670 | -1198.0 | -551.5 | |
0 | 7 | 0 | 4 | -21.24 | 197.57 | -31.00 | 131.81 | 0.6464 | -75.0 | -208.3 | |
0 | 3 | 0 | 2 | -24.52 | 194.11 | -34.45 | 132.87 | 0.7046 | -447.0 | -389.5 |
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. |