| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 21.63 | 0.00 | 12.14 | 17.46 | 178.11 | -13.22 | 27.58 | 0.4700 | -271.5 | 20.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-03-01 12:58:58 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 | 1.38 | 0.00 | 0.76 | 15.93 | 180.31 | -11.02 | 25.19 | 0.4337 | 634.0 | 420.9 | |
| 0.00 | 5.00 | 0.00 | 2.75 | 15.91 | 180.03 | -11.30 | 25.78 | 0.4352 | 716.0 | 710.0 | |
| 0.00 | 1.72 | 0.00 | 0.95 | 15.65 | 179.95 | -11.38 | 26.20 | 0.4322 | 701.0 | 615.8 | |
| 0.00 | 2.41 | 0.00 | 1.33 | 16.30 | 179.82 | -11.51 | 25.79 | 0.4422 | 716.0 | 605.1 | |
| 0.00 | 1.21 | 0.00 | 0.67 | 16.48 | 179.14 | -12.19 | 26.90 | 0.4494 | -718.0 | -526.6 | |
| 0.00 | 1.03 | 0.00 | 0.59 | 19.09 | 177.44 | -13.89 | 27.30 | 0.4967 | -722.0 | -602.2 | |
| 0.00 | 0.52 | 0.00 | 0.29 | 18.96 | 177.32 | -14.01 | 27.62 | 0.4958 | -792.0 | -702.3 | |
| 0.00 | 1.98 | 0.00 | 1.14 | 19.40 | 177.09 | -14.24 | 27.58 | 0.5032 | -682.0 | -465.9 | |
| 0.00 | 1.21 | 0.00 | 0.68 | 18.14 | 177.17 | -14.16 | 28.71 | 0.4860 | -754.0 | -660.6 | |
| 0.00 | 1.81 | 0.00 | 1.04 | 19.46 | 176.20 | -15.13 | 28.95 | 0.5103 | -702.0 | -549.0 | |
| 0.00 | 0.60 | 0.00 | 0.34 | 18.41 | 176.01 | -15.32 | 30.35 | 0.4982 | -641.0 | -509.9 | |
| 0.00 | 0.86 | 0.00 | 0.50 | 19.39 | 174.64 | -16.69 | 31.47 | 0.5211 | -602.0 | -533.4 | |
| 0.00 | 1.90 | 0.00 | 1.10 | 19.16 | 173.77 | -17.56 | 33.01 | 0.5251 | -684.0 | -460.5 | |
| 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. | |