group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 19 | 0 | 13 | -15.15 | 231.71 | -37.07 | 121.68 | 0.6824 | 619.2 | 503.9 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-09-09 20:47:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 2 | -13.52 | 239.45 | -29.33 | 125.44 | 0.5868 | 536.0 | 464.5 | |
0 | 3 | 0 | 2 | -11.30 | 237.36 | -31.42 | 120.41 | 0.5950 | 631.0 | 505.9 | |
0 | 3 | 0 | 2 | -16.18 | 231.85 | -36.93 | 122.90 | 0.6896 | 571.0 | 399.8 | |
0 | 9 | 0 | 7 | -16.43 | 227.85 | -40.94 | 120.62 | 0.7327 | 739.0 | 544.3 |
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. |