SDO HMI 2011-02-28 20:58:58 UT
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| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.21 | 20.16 | 0.71 | 11.95 | 17.59 | 177.75 | -22.34 | 41.40 | 0.5496 | -288.3 | -297.6 | |
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back to the solar disc SDO HMI 2011-02-28 20:58:58 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 | 0.69 | 0.00 | 0.40 | 16.44 | 179.69 | -20.41 | 40.35 | 0.5186 | 672.0 | 587.5 | |
| 0.00 | 1.29 | 0.00 | 0.75 | 15.99 | 179.60 | -20.49 | 41.05 | 0.5145 | 853.0 | 661.0 | |
| 0.00 | 2.50 | 0.00 | 1.44 | 15.64 | 179.61 | -20.49 | 41.52 | 0.5105 | 912.0 | 686.8 | |
| 0.00 | 1.21 | 0.00 | 0.71 | 18.56 | 179.13 | -20.96 | 38.47 | 0.5473 | -680.0 | -435.3 | |
| 1.21 | 5.17 | 0.71 | 3.04 | 17.35 | 178.31 | -21.78 | 41.02 | 0.5418 | -963.3 | -787.3 | |
| 0.00 | 1.21 | 0.00 | 0.72 | 18.66 | 177.77 | -22.32 | 40.10 | 0.5609 | -810.0 | -627.5 | |
| 0.00 | 1.55 | 0.00 | 0.93 | 17.87 | 176.49 | -23.61 | 42.64 | 0.5649 | -571.0 | -468.8 | |
| 0.00 | 2.41 | 0.00 | 1.47 | 19.44 | 176.15 | -23.94 | 41.12 | 0.5841 | -581.0 | -444.9 | |
| 0.00 | 1.38 | 0.00 | 0.83 | 17.65 | 176.35 | -23.75 | 43.08 | 0.5640 | -742.0 | -586.1 | |
| 0.00 | 1.72 | 0.00 | 1.03 | 17.76 | 176.13 | -23.97 | 43.20 | 0.5672 | -760.0 | -561.7 | |
| 0.00 | 1.03 | 0.00 | 0.63 | 18.49 | 175.92 | -24.18 | 42.54 | 0.5767 | -697.0 | -484.7 | |
| 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. | |