SDO HMI 2011-07-18 13:59:11 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30.22 | 250.64 | 15.85 | 131.46 | 16.56 | 169.19 | 15.24 | 309.76 | 0.3292 | -1318.2 | -422.4 | |
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back to the solar disc SDO HMI 2011-07-18 13:59:11 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 |
| 19.78 | 250.64 | 10.38 | 131.46 | 16.59 | 169.27 | 15.32 | 309.69 | 0.3306 | -1356.6 | -422.4 | |
| 1.09 | -1.00 | 0.57 | -1.00 | 17.09 | 169.18 | 15.23 | 311.05 | 0.3345 | -694.8 | 999999 | |
| 6.26 | -1.00 | 3.28 | -1.00 | 16.28 | 169.05 | 15.10 | 309.33 | 0.3247 | -1412.0 | 999999 | |
| 2.00 | -1.00 | 1.05 | -1.00 | 16.88 | 169.03 | 15.08 | 310.81 | 0.3304 | -1002.4 | 999999 | |
| 1.09 | -1.00 | 0.57 | -1.00 | 16.51 | 168.77 | 14.82 | 310.38 | 0.3234 | -1284.4 | 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. | |