Catania Obs (Moeller)   52
 Hubert Joppich          34
 Kanzelhoehe (Moeller)   95
 Georg Robeck            72  
 Frank Ruemmler          45   
 Bob van Slooten         81 
 Slovak Central Obs.     80    
 Friedrich Smit          73
 SOHO (Joppich)          18 
 Hugo Stetter             8
 Wolfgang Strickling      9
 Andreas Tarnutzer       36

 SYNODISCHE SONNENROTATION NR. 2020
 ROTATIONSBEGINN: 2004-08-18.58     ROTATIONSENDE: 2004-09-14.84
 ES HABEN 12 BEOBACHTER INSGESAMT 603 MESSUNGEN AN 14 SONNENFLECKENGRUPPEN GEMACHT

 Def-Nr  Lfd-Nr  Laenge P  Sigma-LP  Breite P  Sigma-BP  Laenge F  Sigma-LF  Breite F  Sigma-BF  Beotg P   Beotg F     Typ
   1       1      351.5      0.5        7.2      0.4      347.2      0.5        6.5      0.4       59        57       D  6.0
   2       2      330.1      0.4       14.2      0.6      327.0      0.5       12.4      0.9       35        21       D  5.0
   3       3      319.6      0.4        4.5      0.7      317.1      1.1        4.9      0.9        2        10       B  3.7
   4       4      296.8      0.8      -10.1      0.6      288.2      0.8       -9.9      0.7       32        32       D  5.4
   5       5      269.2      1.0        8.0      0.4      259.2      1.3       11.2      0.4       43        26       E  5.9
   6       7      179.8      0.9       -8.8      0.4      176.5      1.6       -9.3      0.6       22        25       D  5.0
   7       6      176.3      0.0       16.0      0.0        0.0      0.0        0.0      0.0        1         0       A  3.0
   8       8      165.1      0.0       -0.6      0.0      162.9      0.7       -0.8      0.9        1         6       B  3.0
   9      13      160.4      0.0      -12.6      1.2        0.0      0.0        0.0      0.0        2         0       A  3.0
  10       9      134.7      0.8       -8.2      0.7      128.9      1.1       -9.1      0.9       13        24       D  5.6
  11      10       95.5      0.6      -10.5      0.5        0.0      0.0        0.0      0.0       77         0       H  1.3
  12      11       89.7      0.2      -12.3      0.5       85.2      0.4      -14.0      0.8        5        15       B  3.8
  13      12       89.6      0.9       -4.2      0.7       84.8      0.5       -6.1      0.7       47        44       D  5.2
  14      14       13.1      0.0       -4.6      0.0       10.5      1.2       -4.5      0.5        1         3       B  3.3