group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
36 | 271 | 20 | 149 | 16.50 | 49.68 | -23.43 | 63.22 | 0.4290 | 1794.4 | 652.5 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-01 05:03:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 5 | 0 | 3 | 17.41 | 51.48 | -21.62 | 59.51 | 0.4098 | -661.0 | -508.7 | |
36 | 248 | 20 | 136 | 16.30 | 49.70 | -23.41 | 63.62 | 0.4274 | 1825.9 | 659.1 | |
0 | 18 | 0 | 10 | 18.97 | 48.83 | -24.28 | 58.82 | 0.4564 | 1100.0 | 910.8 |
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. |