group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
29 | 166 | 22 | 123 | 19.16 | 257.50 | -47.84 | 70.02 | 0.7474 | 970.5 | 490.0 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-10 20:47:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
10 | 166 | 8 | 123 | 18.90 | 257.77 | -47.57 | 70.32 | 0.7439 | 1317.6 | 490.0 | |
10 | -1 | 8 | -1 | 19.57 | 257.51 | -47.83 | 69.47 | 0.7480 | 696.3 | 999999 | |
9 | -1 | 6 | -1 | 18.97 | 257.12 | -48.22 | 70.35 | 0.7511 | 873.4 | 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. |