SDO HMI 2011-02-28 23:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.72 | 16.90 | 1.00 | 9.78 | 16.99 | 178.82 | -19.63 | 38.43 | 0.5176 | -185.1 | 103.0 | |
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back to the solar disc SDO HMI 2011-02-28 23:58:58 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 |
| 0.00 | 1.03 | 0.00 | 0.58 | 16.11 | 184.71 | -13.74 | 30.16 | 0.4560 | -685.0 | -495.1 | |
| 0.00 | 3.88 | 0.00 | 2.21 | 16.13 | 179.78 | -18.67 | 38.24 | 0.4987 | 794.0 | 753.0 | |
| 0.00 | 2.50 | 0.00 | 1.42 | 15.62 | 179.73 | -18.71 | 38.98 | 0.4932 | 685.0 | 648.9 | |
| 0.00 | 1.21 | 0.00 | 0.69 | 16.34 | 179.43 | -19.01 | 38.49 | 0.5044 | 590.0 | 534.5 | |
| 0.00 | 0.69 | 0.00 | 0.40 | 16.51 | 179.38 | -19.06 | 38.35 | 0.5068 | 596.0 | 479.6 | |
| 1.72 | 2.76 | 1.00 | 1.61 | 17.40 | 178.29 | -20.15 | 38.77 | 0.5271 | -882.9 | -811.8 | |
| 0.00 | 0.78 | 0.00 | 0.46 | 19.37 | 176.97 | -21.47 | 38.16 | 0.5611 | -537.0 | -466.7 | |
| 0.00 | 1.29 | 0.00 | 0.77 | 18.38 | 177.04 | -21.41 | 39.26 | 0.5495 | -858.0 | -641.8 | |
| 0.00 | 0.69 | 0.00 | 0.41 | 17.65 | 176.59 | -21.85 | 40.73 | 0.5457 | -551.0 | -416.9 | |
| 0.00 | 1.12 | 0.00 | 0.67 | 19.44 | 176.14 | -22.30 | 39.12 | 0.5693 | -591.0 | -479.9 | |
| 0.00 | 0.95 | 0.00 | 0.56 | 17.53 | 175.73 | -22.71 | 41.97 | 0.5527 | -596.0 | -480.8 | |
| 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. | |