group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
62 | 270 | 88 | 398 | 10.60 | 291.23 | 68.55 | 283.74 | 0.9419 | 139.8 | 189.5 |
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or next observation for the same group /
back to the solar disc SOHO MDI 2000-04-02 23:59:33 UT |
spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
12 | 49 | 22 | 95 | 10.40 | 296.32 | 73.64 | 282.58 | 0.9681 | -19.3 | -46.1 | |
2 | 11 | 3 | 18 | 10.48 | 294.48 | 71.79 | 282.98 | 0.9599 | 297.0 | 190.3 | |
0 | 4 | 0 | 7 | 8.83 | 292.91 | 70.23 | 281.55 | 0.9505 | 37.0 | 124.1 | |
7 | 206 | 9 | 278 | 10.43 | 289.57 | 66.89 | 283.87 | 0.9333 | 173.2 | 271.6 | |
7 | -4 | 9 | -4 | 11.53 | 289.67 | 66.99 | 285.00 | 0.9352 | 444.3 | 999999 | |
10 | -4 | 13 | -4 | 10.09 | 288.92 | 66.24 | 283.64 | 0.9288 | -552.0 | 999999 | |
24 | -4 | 32 | -4 | 10.83 | 289.14 | 66.46 | 284.38 | 0.9311 | 421.0 | 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. |