SDO HMI 2014-03-30 14:00:31 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 10.17 | 0.00 | 32.17 | -10.65 | 20.63 | -82.01 | 99.78 | 0.9882 | -90.8 | -80.4 | |
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back to the solar disc SDO HMI 2014-03-30 14:00:31 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 |
| 0.00 | 5.26 | 0.00 | 15.10 | -10.13 | 21.68 | -80.96 | 99.17 | 0.9856 | -37.0 | -79.9 | |
| 0.00 | 0.61 | 0.00 | 1.72 | -9.84 | 21.81 | -80.83 | 98.86 | 0.9852 | 15.0 | 54.9 | |
| 0.00 | 2.63 | 0.00 | 9.31 | -11.35 | 19.49 | -83.15 | 100.59 | 0.9909 | -51.0 | -20.0 | |
| 0.00 | 1.67 | 0.00 | 6.04 | -11.10 | 19.40 | -83.24 | 100.34 | 0.9912 | -290.0 | -212.9 | |
| 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. | |