group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
14 | 39 | 13 | 36 | -19.73 | 280.26 | 56.70 | 250.59 | 0.8363 | 706.4 | 485.8 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-04-02 22:23:33 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 5 | 0 | 5 | -20.65 | 281.74 | 58.18 | 249.65 | 0.8502 | 690.0 | 559.7 | |
4 | 34 | 4 | 31 | -19.29 | 280.19 | 56.63 | 251.11 | 0.8353 | 607.8 | 473.9 | |
4 | -2 | 4 | -2 | -19.54 | 280.03 | 56.47 | 250.78 | 0.8341 | 857.6 | 999999 | |
6 | -2 | 5 | -2 | -19.84 | 279.89 | 56.33 | 250.41 | 0.8331 | 664.9 | 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. |