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

8824 55 495 34 320 -13.31 174.48 39.34 254.75 0.6388


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SOHO MDI 2000-01-18 16:43:32 UT

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spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler

1 0 6 0 6 -14.08 195.39 60.24 256.52 0.8680
2 0 7 0 6 -13.62 192.51 57.37 256.91 0.8425
3 0 5 0 4 -15.12 187.20 52.06 254.60 0.7920
4 0 4 0 3 -14.02 184.04 48.90 255.61 0.7571
5 0 3 0 2 -11.88 180.88 45.74 258.12 0.7186
6 2 16 1 11 -12.53 179.74 44.60 257.06 0.7057
7 0 4 0 3 -11.50 179.42 44.27 258.48 0.7005
8 0 8 0 5 -13.73 178.42 43.28 255.13 0.6914
9 5 58 4 39 -13.39 177.59 42.45 255.47 0.6807
10 0 2 0 1 -10.10 176.87 41.72 260.25 0.6672
11 0 6 0 4 -10.49 176.67 41.53 259.63 0.6651
12 2 -9 1 -9 -13.38 177.16 42.02 255.41 0.6753
13 0 6 0 4 -13.95 177.29 42.15 254.59 0.6779
14 0 13 0 9 -11.83 176.38 41.24 257.58 0.6630
15 0 18 0 11 -11.28 175.71 40.57 258.31 0.6537
16 0 15 0 10 -12.31 175.28 40.14 256.65 0.6496
17 0 9 0 6 -12.57 174.05 38.91 256.01 0.6341
18 0 4 0 2 -13.38 174.20 39.06 254.78 0.6377
19 0 12 0 8 -11.98 173.40 38.25 256.80 0.6244
20 0 10 0 7 -15.21 173.46 38.32 251.73 0.6324
21 0 37 0 23 -13.17 172.95 37.81 254.81 0.6209
22 0 3 0 2 -14.41 173.14 38.00 252.90 0.6262
23 4 201 3 125 -13.93 172.60 37.46 253.51 0.6179
24 4 -23 3 -23 -13.98 172.31 37.17 253.34 0.6142
25 4 -23 2 -23 -14.22 172.21 37.06 252.93 0.6135
26 0 4 0 2 -9.70 171.25 36.11 260.18 0.5918
27 0 2 0 1 -11.04 171.43 36.29 257.95 0.5962
28 23 -23 14 -23 -13.72 171.23 36.09 253.45 0.5992
29 5 -23 3 -23 -14.73 171.37 36.22 251.84 0.6038
30 0 15 0 9 -11.08 170.66 35.52 257.73 0.5857
31 0 5 0 3 -11.70 170.61 35.46 256.67 0.5862
32 2 -23 1 -23 -14.28 170.94 35.80 252.43 0.5968
33 4 -23 2 -23 -14.06 170.70 35.56 252.73 0.5931
34 0 10 0 6 -12.05 169.75 34.61 255.85 0.5750
35 0 4 0 3 -16.14 168.82 33.68 248.53 0.5747
36 0 3 0 2 -14.65 161.24 26.10 247.23 0.4636
37 0 5 0 3 -14.78 159.99 24.84 246.10 0.4463


  • 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