SONNE Sunspot Network, Observers 4th Quarter 2007 Name Instrument Obs. Days K Factors s r T. N/S Re' Re g Re' Astrolab Jeugdw. Refr. 0/ 0 8 0 0 0.974 0.834 - 34 0.47 Brettel,G. Refr. 90/1000 31 0 0 0.828 0.849 - 8 0.96 Buck,A. Refl. 125/1875 38 0 0 0.829 0.731 - 8 0.97 Bulling,A. Refl. 70/1000 36 0 36 0.780 0.813 1.424 8 0.94 Bullon,J.M. Refl. 200/2000 9 0 0 0.000 0.000 - 11 9.99 Bullon,J.M. Refr. 120/1000 5 0 0 0.643 0.700 - 7 0.99 Capricornio Obs. Refr. 102/1500 41 0 0 0.624 0.762 - 17 0.90 Carels,J. Refr. 150/1200 48 0 48 0.675 0.680 1.109 9 0.96 Claes,J. Refr. 102/ 0 36 0 36 0.710 0.720 1.156 8 0.99 Claeys,L. Refl. 158/ 0 46 0 0 0.732 0.741 - 9 0.98 Daub,K.-P. Refr. 152/1200 9 0 0 0.764 0.740 - 5 1.00 Dewaele,K. Refl. 114/ 0 7 0 0 0.803 0.899 - 1 1.00 Dezeure,R. Refr. 0/ 0 58 0 0 1.065 0.833 - 12 0.97 Dufoer,S. Refl. 114/ 0 20 0 15 0.802 0.889 1.155 12 0.97 Gadyne,R. Refl. 203/2032 10 0 0 0.809 0.841 - 12 0.98 Gubbels,G. Refl. 114/ 0 46 0 45 0.739 0.743 1.050 9 0.99 Gysel,L. Refr. 90/1250 10 0 0 1.304 1.087 - 36 9.99 Hesse,A. Refr. 100/1000 36 0 0 0.692 1.108 - 16 0.94 Leventhal,M. Refl. 250/2500 60 0 0 0.865 0.849 - 14 0.93 Mira Pub. Obs. Refr. 150/5845 11 0 0 0.662 0.692 - 6 0.96 Schirpke,U. Refr. 80/1200 6 0 0 0.679 0.722 - 11 9.99 Smit,F. Refr. 80/1200 27 27 27 0.989 0.931 3.386 10 0.90 Stetter,H. Refr. 125/1875 39 39 39 1.883 1.696 5.100 21 0.85 Taillieu,B. Refr. 150/ 0 27 0 0 0.665 0.613 - 12 0.93 Thooris,B. Refl. 114/ 0 48 0 0 0.883 0.757 - 14 0.94 Tiendesprong Obs Refr. 75/1200 19 0 0 0.716 0.702 - 8 0.99 Van Hessche,D. Refl. 250/ 0 16 0 14 0.962 0.986 1.399 16 0.99 Verboven,R. Refl. 150/ 0 29 0 0 0.832 0.770 - 7 0.99 Willi,X. Refl. 200/1320 17 0 0 1.700 1.688 - 17 0.62 Wollenhaupt,G. Refr. 80/ 600 10 0 10 0.842 0.792 2.458 7 0.98 Standard Observers: Araujo,G. Refr. 80/ 910 86 0 0 0.646 0.659 - 9 0.98 Bachmann,U. Refl. 203/2000 9 0 9 0.633 0.728 0.771 11 0.95 Barnes,H. Refr. 76/ 910 32 0 32 0.820 0.798 1.364 9 0.97 Battaiola,R. Refl. 90/1250 16 0 16 0.835 0.798 1.488 12 9.99 Beltran,G.V. Refl. 200/1600 18 0 0 0.896 0.816 - 17 9.99 Bourgeois,J. Refl. 135/ 800 30 0 0 0.657 0.784 - 7 0.96 Bretschneider,H. Refr. 63/ 840 30 30 30 0.548 0.609 1.104 11 0.98 Bruegger,S. Refr. 80/ 400 11 0 11 0.772 0.826 1.086 18 9.99 Bullon,J.M. Refr. 102/1500 55 0 0 0.514 0.631 - 15 0.95 Chudy,M. Refr. 60/ 700 18 0 0 0.919 0.826 - 13 0.78 Coeckelberghs,H. Refr. 60/ 415 20 0 20 1.034 0.866 1.753 12 0.93 De Backer,H. Refl. 100/1035 62 0 62 0.739 0.776 1.072 10 0.95 De Ceuninck,E. Refr. 100/ 0 58 0 0 0.625 0.673 - 12 0.95 Deman,G. Refr. 150/ 0 25 0 0 0.668 0.700 - 10 0.97 Dubois,F. Refr. 125/2500 60 0 60 0.658 0.698 1.088 9 0.98 Fritsche,S. Refr. 63/ 840 33 0 0 0.766 0.788 - 7 0.98 Gabriel,A. Refr. 125/ 0 74 0 0 0.749 0.754 - 7 0.98 Hedewig,R. Refr. 80/1200 44 0 0 0.790 0.849 - 15 0.86 Hoerenz,M. Refr. 60/ 700 15 0 15 0.768 0.743 1.484 5 0.99 Holl,M. Refr. 80/ 400 27 0 27 0.834 0.818 1.533 7 0.99 Hunstiege,H.J. Refr. 50/ 300 7 0 0 1.120 0.874 - 28 9.99 Hurbanovo Obs. Refr. 150/2250 56 56 56 0.737 0.756 1.309 8 0.97 Joppich,H. Refr. 60/ 900 8 7 8 0.920 0.866 2.111 12 0.99 Junker,E. Refr. 50/ 600 21 0 21 0.852 0.700 1.749 11 0.97 KSB Refr. 0/ 0 49 0 0 0.705 0.739 - 9 0.97 Kaczmarek,A. Refr. 80/ 400 20 0 0 0.705 0.886 - 7 0.99 Kandilli Obs. Refr. 200/3070 64 64 0 0.792 0.774 - 10 0.96 Kleber,S. Refl. 70/ 0 39 0 0 1.079 1.001 - 15 0.94 Kysucka Obs. Refr. 200/3000 42 0 0 0.689 0.760 - 10 0.97 Lau,D. Refr. 60/ 700 34 0 34 0.856 0.808 1.368 17 0.92 Meeus,L. Refr. 102/ 660 39 0 39 0.648 0.681 1.133 7 0.98 Michalovce Obs. Refr. 150/2250 21 21 21 0.839 0.813 1.562 9 0.99 Mochizuki,E. Refr. 90/1000 60 60 0 0.628 0.678 - 9 0.97 Moeller,M. Refr. 79/1000 43 43 43 0.724 0.727 1.104 7 0.98 Morales,G. Refl. 90/2000 76 0 0 0.576 0.625 - 17 0.88 Noy,J.R. Refr. 80/1200 25 25 25 0.701 0.774 0.791 13 0.96 Rim. Sobota Obs. Refr. 150/2250 49 49 49 0.653 0.708 1.027 8 0.97 Robeck,G. Refl. 203/2000 56 56 56 0.925 0.862 1.937 13 0.94 Ruemmler,F. Refr. 80/1200 11 11 0 0.628 0.678 - 4 9.99 Schroeder,G. Refr. 75/1200 43 43 0 0.838 0.854 - 10 0.95 Seiffert,H.-P. Refr. 100/ 500 25 0 0 0.816 0.822 - 11 0.96 Son,A.T. Refl. 150/4300 21 0 13 0.822 0.830 1.505 6 0.98 Steen,O. Refr. 102/1500 68 0 68 0.701 0.692 1.223 11 0.93 Stemmler,G. Refr. 63/ 670 42 0 0 1.067 0.946 - 12 0.97 Stolzen,P. Refr. 40/ 500 32 0 0 1.078 0.907 - 9 0.99 Suzuki,M. Refr. 100/ 0 70 70 0 0.489 0.588 - 10 0.97 Van Slooten,B. Refr. 90/1300 61 61 0 0.834 0.769 - 9 0.97 Viertel,A. Refr. 50/ 540 33 0 0 0.965 0.866 - 13 0.92 WFS,Berlin Refr. 150/2250 22 22 0 0.528 0.590 - 7 0.99 ** Number of Observations: 2663 (N/S: 684; Re': 985) ** ** Number of Observers: 79 (N/S: 17; Re': 31) ** Legend: Obs. Days: Number of observations of T. N/S Re': Wolf number (Total, N/S), sunspot number according to BECK K Factors: k factors used for reduction of Re g Re': Wolf number, group number, sunspot number according to BECK s: Deviation of Wolf numbers (reduced to Re=100) r: Correlation Observers with less then 5 observations have been excluded this quarter.