group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
34 | 264 | 51 | 394 | 2.66 | 270.84 | -70.73 | 88.80 | 0.9446 | 522.1 | 75.9 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-10-28 22:23:32 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
14 | 260 | 20 | 387 | 2.33 | 271.56 | -70.01 | 89.19 | 0.9406 | 805.3 | 84.3 | |
20 | -1 | 31 | -1 | 2.91 | 270.42 | -71.15 | 88.51 | 0.9469 | 345.7 | 999999 | |
0 | 4 | 0 | 7 | 1.14 | 269.62 | -71.95 | 90.30 | 0.9520 | -446.0 | -385.7 |
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. |