group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
22 | 154 | 15 | 103 | 3.03 | 270.83 | 42.26 | 269.09 | 0.6740 | -1233.6 | -506.6 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2000-07-20 11:11:31 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
0 | 4 | 0 | 3 | 2.18 | 272.28 | 43.72 | 268.01 | 0.6933 | 566.0 | 379.7 | |
19 | 150 | 13 | 100 | 3.17 | 271.02 | 42.45 | 269.31 | 0.6763 | -1265.5 | -533.2 | |
-2 | -2 | -2 | -2 | 3.03 | 270.64 | 42.07 | 269.07 | 0.6715 | 999999 | 999999 | |
3 | -2 | 2 | -2 | 2.76 | 270.52 | 41.95 | 268.65 | 0.6702 | -1206.2 | 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. |
||
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. |
||
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. |