group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
14 | 59 | 8 | 32 | 18.86 | 14.57 | 15.57 | 320.21 | 0.3910 | 636.6 | 360.2 |
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back to the solar disc SOHO MDI 2000-11-23 22:23:32 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
10 | 25 | 6 | 14 | 20.64 | 18.63 | 19.63 | 316.11 | 0.4553 | 1253.4 | 774.5 | |
0 | 4 | 0 | 2 | 22.70 | 15.95 | 16.94 | 323.26 | 0.4513 | -880.0 | -743.5 | |
4 | 9 | 2 | 5 | 22.29 | 15.68 | 16.67 | 323.09 | 0.4439 | -1068.9 | -897.0 | |
0 | 13 | 0 | 7 | 15.82 | 9.82 | 10.81 | 323.62 | 0.3057 | 533.0 | 540.5 | |
0 | 8 | 0 | 4 | 11.72 | 6.61 | 7.61 | 323.43 | 0.2186 | 806.0 | 717.6 |
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. |