group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
38 | 228 | 24 | 145 | 19.29 | 257.47 | -37.78 | 67.17 | 0.6297 | 1155.9 | 461.7 |
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or next observation for the same group /
back to the solar disc SOHO MDI 2000-08-11 15:05:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 5 | 0 | 3 | 21.48 | 257.26 | -37.99 | 63.90 | 0.6401 | -583.0 | -515.0 | |
16 | 223 | 10 | 142 | 19.03 | 257.86 | -37.39 | 67.43 | 0.6240 | 1446.5 | 482.3 | |
8 | -2 | 5 | -2 | 19.78 | 257.60 | -37.65 | 66.35 | 0.6297 | 873.2 | 999999 | |
14 | -2 | 9 | -2 | 19.17 | 256.98 | -38.28 | 67.53 | 0.6355 | 1028.8 | 999999 |
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. |