group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
8 | 70 | 5 | 39 | -2.60 | 260.49 | 24.90 | 277.14 | 0.4260 | 328.7 | 64.8 |
previous
or next observation for the same group /
back to the solar disc SOHO MDI 2002-04-08 11:11:33 UT ![]() |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
3 | 21 | 2 | 12 | -2.57 | 262.98 | 27.40 | 276.28 | 0.4644 | -1085.9 | -1090.6 | |
0 | 5 | 0 | 3 | -2.16 | 262.58 | 26.99 | 277.29 | 0.4592 | -1106.0 | -878.0 | |
0 | 4 | 0 | 2 | -7.92 | 261.04 | 25.45 | 264.48 | 0.4295 | 182.0 | 406.5 | |
0 | 18 | 0 | 10 | -2.28 | 259.00 | 23.42 | 278.41 | 0.4032 | 985.0 | 756.1 | |
0 | 4 | 0 | 2 | -1.20 | 258.86 | 23.28 | 281.13 | 0.4044 | 669.0 | 758.5 | |
5 | 11 | 3 | 6 | -2.57 | 258.63 | 23.04 | 277.86 | 0.3964 | 1281.6 | 994.6 | |
0 | 7 | 0 | 4 | -1.88 | 258.49 | 22.90 | 279.66 | 0.3963 | 767.0 | 597.7 |
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. |
||
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. |