SDO HMI 2011-02-25 21:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.75 | 100.86 | 62.39 | 309.36 | 26.58 | 163.49 | -75.56 | 61.42 | 0.9869 | -471.6 | -199.7 | |
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back to the solar disc SDO HMI 2011-02-25 21:58:58 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.50 | 99.91 | 7.86 | 307.45 | 27.83 | 163.21 | -75.84 | 60.24 | 0.9884 | -372.5 | -199.7 | |
| 0.00 | 0.95 | 0.00 | 1.91 | 24.64 | 168.30 | -70.76 | 62.27 | 0.9706 | -235.0 | -192.0 | |
| 14.20 | -1.00 | 43.08 | -1.00 | 26.54 | 163.38 | -75.67 | 61.48 | 0.9872 | -641.5 | 999999 | |
| 2.24 | -1.00 | 6.26 | -1.00 | 25.92 | 164.06 | -75.00 | 61.96 | 0.9851 | 224.6 | 999999 | |
| 1.55 | -1.00 | 4.48 | -1.00 | 26.03 | 163.72 | -75.34 | 61.92 | 0.9861 | -197.2 | 999999 | |
| 0.26 | -1.00 | 0.71 | -1.00 | 25.74 | 164.12 | -74.93 | 62.12 | 0.9848 | 535.7 | 999999 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
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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 | |
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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. | |