group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
9 | 43 | 8 | 37 | -38.82 | 270.96 | -33.50 | 148.36 | 0.8201 | -569.6 | -37.5 |
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back to the solar disc SOHO MDI 2000-08-10 22:23:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
9 | 26 | 8 | 22 | -38.24 | 272.73 | -31.73 | 149.11 | 0.8068 | -623.9 | -296.5 | |
0 | 2 | 0 | 2 | -37.59 | 272.69 | -31.77 | 148.55 | 0.8019 | -530.0 | -457.5 | |
0 | 5 | 0 | 4 | -40.52 | 267.40 | -37.06 | 147.32 | 0.8505 | 242.0 | 227.9 | |
0 | 10 | 0 | 9 | -39.76 | 267.83 | -36.63 | 146.95 | 0.8433 | 750.0 | 571.0 |
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. |