groupProj. UProj. WSCorr. UCorr. WS BLLCMPos. angler MU MP

12017 86.40 325.35 48.23 181.30 10.13 146.53 21.37 308.30 0.4585 -533.0 -281.7


previous   or   next   observation for the same group / back to the solar disc

SDO HMI 2014-03-28 21:00:31 UT

No observation available
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!)


spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler MU MP

1 10.59 15.40 6.01 8.74 10.44 148.89 23.73 305.80 0.4899 -900.6 -684.7
2 0.00 0.88 0.00 0.50 10.82 148.92 23.76 306.39 0.4936 -555.0 -454.2
3 0.00 1.05 0.00 0.60 10.94 148.83 23.67 306.69 0.4936 -592.0 -552.2
4 0.00 4.90 0.00 2.77 10.61 148.44 23.28 306.61 0.4858 -184.0 -389.7
5 0.00 3.41 0.00 1.93 11.11 147.79 22.62 308.24 0.4825 693.0 463.0
6 35.36 264.15 19.72 147.46 9.67 147.12 21.95 306.62 0.4611 -1175.2 -327.0
7 0.00 0.61 0.00 0.34 11.11 147.06 21.90 309.15 0.4739 -577.0 -427.7
8 18.47 -6.00 10.32 -6.00 10.26 146.93 21.77 307.88 0.4642 -809.7 999999
9 0.00 2.28 0.00 1.28 10.92 146.95 21.78 308.98 0.4707 -262.0 -267.9
10 1.93 -6.00 1.07 -6.00 10.24 146.50 21.34 308.40 0.4589 -1068.0 999999
11 5.43 -6.00 3.04 -6.00 11.18 146.51 21.35 309.99 0.4680 824.5 999999
12 8.49 -6.00 4.73 -6.00 10.42 146.32 21.16 308.95 0.4584 -820.5 999999
13 1.58 -6.00 0.88 -6.00 10.57 146.17 21.00 309.42 0.4580 185.1 999999
14 0.00 1.05 0.00 0.58 10.04 146.13 20.97 308.54 0.4524 -1031.0 -825.7
15 0.00 3.06 0.00 1.70 10.51 145.55 20.38 310.17 0.4500 695.0 591.9
16 0.00 1.23 0.00 0.68 11.13 145.40 20.23 311.44 0.4545 -565.0 -460.7
17 0.00 3.94 0.00 2.15 10.01 143.93 18.77 311.65 0.4258 -942.0 -861.2
18 0.00 1.14 0.00 0.61 7.82 143.52 18.36 308.16 0.3986 -774.0 -568.0
19 0.00 1.66 0.00 0.90 8.03 143.28 18.12 308.95 0.3976 -836.0 -632.1
20 3.06 4.81 1.66 2.61 10.81 141.68 16.52 316.71 0.4090 -980.9 -777.5
21 0.00 1.31 0.00 0.71 10.51 141.31 16.15 316.85 0.4016 -814.0 -678.8
22 0.00 1.58 0.00 0.85 10.08 140.60 15.43 317.41 0.3888 695.0 575.6
23 0.00 1.49 0.00 0.80 9.96 140.49 15.33 317.37 0.3862 877.0 668.4
24 0.00 0.88 0.00 0.47 9.76 140.33 15.16 317.34 0.3821 809.0 732.9
25 0.00 0.79 0.00 0.42 9.47 140.03 14.87 317.38 0.3754 799.0 680.2
26 0.00 1.84 0.00 0.98 9.59 139.66 14.50 318.31 0.3727 930.0 772.0
27 0.00 0.88 0.00 0.47 9.02 139.42 14.25 317.76 0.3633 706.0 505.4
28 0.00 1.05 0.00 0.56 10.77 139.31 14.14 321.05 0.3835 616.0 489.2
29 0.00 1.40 0.00 0.75 10.45 139.20 14.03 320.74 0.3785 932.0 792.0
30 0.00 0.88 0.00 0.47 10.72 138.84 13.67 321.93 0.3782 836.0 792.5
31 1.49 2.45 0.80 1.32 11.87 138.48 13.32 324.48 0.3897 883.6 670.3
32 0.00 1.23 0.00 0.65 9.58 138.35 13.18 321.00 0.3589 799.0 614.8


  • 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.