SDO HMI 2014-03-01 03:00:28 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.90 | 18.90 | 1.01 | 9.80 | 8.44 | 134.45 | 3.54 | 348.19 | 0.2903 | 214.0 | 347.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-01 03:00:28 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 | 1.21 | 0.00 | 0.63 | 6.50 | 142.68 | 11.77 | 319.20 | 0.3115 | -860.0 | -669.1 | |
| 1.47 | 1.55 | 0.78 | 0.82 | 9.97 | 141.99 | 11.08 | 327.18 | 0.3506 | -704.8 | -719.0 | |
| 0.00 | 1.64 | 0.00 | 0.85 | 6.86 | 141.05 | 10.13 | 324.13 | 0.2994 | -999.0 | -851.8 | |
| 0.43 | 1.81 | 0.23 | 0.95 | 8.63 | 140.21 | 9.29 | 329.55 | 0.3164 | -911.8 | -746.8 | |
| 0.00 | 1.21 | 0.00 | 0.62 | 7.14 | 134.69 | 3.77 | 345.25 | 0.2575 | 802.0 | 595.2 | |
| 0.00 | 1.55 | 0.00 | 0.80 | 7.53 | 133.13 | 2.22 | 351.44 | 0.2586 | 967.0 | 761.4 | |
| 0.00 | 1.04 | 0.00 | 0.54 | 9.84 | 132.18 | 1.27 | 355.76 | 0.2956 | 836.0 | 685.5 | |
| 0.00 | 0.26 | 0.00 | 0.14 | 13.14 | 132.05 | 1.13 | 356.83 | 0.3500 | -1.0 | 0.7 | |
| 0.00 | 2.76 | 0.00 | 1.42 | 8.45 | 130.13 | -0.78 | 2.86 | 0.2718 | 695.0 | 649.7 | |
| 0.00 | 3.45 | 0.00 | 1.78 | 8.73 | 129.92 | -0.99 | 3.56 | 0.2767 | 1043.0 | 896.4 | |
| 0.00 | 1.47 | 0.00 | 0.76 | 9.10 | 129.89 | -1.02 | 3.59 | 0.2829 | 951.0 | 788.6 | |
| 0.00 | 0.95 | 0.00 | 0.49 | 8.94 | 129.80 | -1.11 | 3.94 | 0.2804 | 807.0 | 638.7 | |
| 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. | |