group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 22 | 0 | 16 | -17.30 | 98.52 | -42.68 | 119.32 | 0.7439 | -239.5 | -221.2 |
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back to the solar disc SOHO MDI 2000-07-27 01:35:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 8 | 0 | 6 | -16.03 | 100.45 | -40.75 | 118.76 | 0.7180 | -538.0 | -360.5 | |
0 | 3 | 0 | 2 | -19.01 | 99.22 | -41.97 | 121.76 | 0.7459 | -511.0 | -422.9 | |
0 | 7 | 0 | 5 | -17.85 | 98.68 | -42.52 | 120.04 | 0.7455 | -556.0 | -369.7 | |
0 | 4 | 0 | 3 | -17.80 | 93.92 | -47.28 | 117.62 | 0.7916 | 647.0 | 439.3 |
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. |