| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.45 | 16.48 | 1.30 | 10.31 | -13.36 | 123.14 | 35.89 | 255.01 | 0.5833 | -162.2 | -50.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 18:00:31 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 | 0.61 | 0.00 | 0.49 | -7.39 | 139.14 | 51.89 | 265.77 | 0.7847 | 409.0 | 412.3 | |
| 0.00 | 0.79 | 0.00 | 0.60 | -5.70 | 137.12 | 49.87 | 268.10 | 0.7636 | 485.0 | 438.9 | |
| 0.00 | 1.14 | 0.00 | 0.83 | -7.62 | 135.07 | 47.83 | 265.68 | 0.7390 | 745.0 | 601.4 | |
| 0.00 | 0.61 | 0.00 | 0.45 | -7.20 | 134.66 | 47.41 | 266.26 | 0.7343 | 464.0 | 446.9 | |
| 0.00 | 1.05 | 0.00 | 0.76 | -16.20 | 134.03 | 46.78 | 253.90 | 0.7307 | 609.0 | 553.4 | |
| 0.00 | 2.72 | 0.00 | 1.89 | -16.29 | 131.77 | 44.52 | 253.42 | 0.7046 | 150.0 | 256.6 | |
| 0.00 | 1.05 | 0.00 | 0.61 | -19.26 | 117.53 | 30.28 | 243.78 | 0.5328 | -631.0 | -508.7 | |
| 0.00 | 1.67 | 0.00 | 0.97 | -19.42 | 117.38 | 30.13 | 243.40 | 0.5316 | -791.0 | -576.1 | |
| 0.00 | 0.88 | 0.00 | 0.51 | -19.27 | 116.87 | 29.63 | 243.38 | 0.5241 | -596.0 | -531.5 | |
| 0.00 | 0.96 | 0.00 | 0.54 | -13.81 | 114.23 | 26.98 | 252.58 | 0.4636 | -592.0 | -441.0 | |
| 0.00 | 0.70 | 0.00 | 0.38 | -15.54 | 110.23 | 22.98 | 246.35 | 0.4124 | -820.0 | -704.0 | |
| 2.45 | 4.30 | 1.30 | 2.28 | -10.64 | 108.22 | 20.97 | 257.42 | 0.3619 | -1097.5 | -895.7 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
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. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
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. |
||
| 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. | |