SONNE Sunspot Network, Observers 1st Quarter 2008 Name Instrument Obs. Days K Factors s r T. N/S Re' Re g Re' Astrolab Jeugdw. Refr. 0/ 0 7 0 0 0.756 0.717 - 18 0.29 Bavais,J. Refr. 60/ 910 6 0 0 0.758 0.732 - 6 0.99 Brettel,G. Refr. 90/1000 34 0 0 0.841 0.836 - 16 0.98 Bulling,A. Refl. 70/1000 33 0 33 0.986 1.006 1.325 14 0.95 Bullon,J.M. Refl. 200/2000 7 0 0 0.800 0.833 - 15 0.99 Capricornio Obs. Refr. 102/1500 36 0 0 0.661 0.773 - 12 0.97 Carels,J. Refr. 150/1200 47 0 47 0.664 0.657 1.209 10 0.97 Claes,J. Refr. 102/ 0 37 0 37 0.748 0.739 1.390 13 0.96 Claeys,L. Refl. 158/ 0 49 0 0 0.749 0.755 - 17 0.97 DKS Eriskirch Refl. 203/2000 7 0 0 1.061 0.865 - 37 0.83 Daub,K.-P. Refr. 152/1200 14 0 0 0.768 0.770 - 10 0.99 Dezeure,R. Refr. 0/ 0 55 0 0 0.889 0.741 - 15 0.97 Dufoer,S. Refl. 114/ 0 20 0 20 0.831 0.961 1.090 16 0.97 Gadyne,R. Refl. 203/2032 33 0 0 0.760 0.747 - 14 0.93 Gubbels,G. Refl. 114/ 0 42 0 42 0.733 0.722 1.181 13 0.97 Gysel,L. Refr. 90/1250 16 0 0 2.819 2.193 - 13 0.99 Hesse,A. Refr. 100/1000 22 0 0 0.710 0.947 - 14 0.98 Hofmann,W. Refr. 80/ 400 20 0 0 1.547 1.225 - 17 0.96 Joppich,H. Refr. 60/ 900 14 11 14 0.850 0.795 3.501 24 0.93 Leventhal,M. Refl. 250/2500 62 0 0 0.765 0.729 - 17 0.93 Mira Pub. Obs. Refr. 150/5845 5 0 5 0.967 0.896 1.166 16 0.94 Smit,F. Refr. 80/1200 55 55 38 0.960 0.938 6.818 13 0.98 Taillieu,B. Refr. 150/ 0 49 0 0 0.641 0.598 - 13 0.96 Thooris,B. Refl. 114/ 0 48 0 0 0.881 0.768 - 14 0.96 Tiendesprong Obs Refr. 75/1200 29 0 0 0.784 0.745 - 12 0.97 Van Hessche,D. Refl. 250/ 0 13 0 8 1.090 1.068 2.075 15 0.86 Verboven,R. Refl. 150/ 0 23 0 0 0.910 0.853 - 12 0.98 Willi,X. Refl. 200/1320 27 0 0 1.736 1.719 - 16 0.98 Wollenhaupt,G. Refr. 80/ 600 8 0 8 0.842 0.792 2.458 8 9.99 Standard Observers: Araujo,G. Refr. 80/ 910 85 0 0 0.656 0.671 - 11 0.97 Barnes,H. Refr. 76/ 910 37 0 37 0.812 0.786 1.385 10 0.97 Battaiola,R. Refl. 90/1250 9 0 9 0.856 0.819 1.802 11 1.00 Beltran,G.V. Refl. 200/1600 43 0 20 0.892 0.832 0.000 16 0.98 Bourgeois,J. Refl. 135/ 800 24 0 0 0.670 0.786 - 11 0.98 Bretschneider,H. Refr. 63/ 840 35 35 35 0.558 0.618 1.038 12 0.98 Bruegger,S. Refr. 80/ 400 16 0 16 0.868 0.880 1.337 18 0.99 Bullon,J.M. Refr. 102/1500 44 0 0 0.526 0.644 - 12 0.94 Chudy,M. Refr. 60/ 700 32 0 0 0.926 0.841 - 15 0.97 Coeckelberghs,H. Refr. 60/ 415 22 0 16 1.088 0.903 2.061 16 0.85 De Backer,H. Refl. 100/1035 61 0 61 0.760 0.782 1.135 15 0.88 De Ceuninck,E. Refr. 100/ 0 60 0 0 0.618 0.642 - 13 0.95 Deman,G. Refr. 150/ 0 21 0 0 0.639 0.665 - 13 0.93 Dubois,F. Refr. 125/2500 66 0 66 0.650 0.688 1.011 10 0.98 Fritsche,S. Refr. 63/ 840 42 0 0 0.761 0.792 - 13 0.94 Gabriel,A. Refr. 125/ 0 70 0 0 0.712 0.721 - 10 0.98 Hoerenz,M. Refr. 60/ 700 27 0 27 0.792 0.770 1.462 12 0.99 Holl,M. Refr. 80/ 400 32 0 32 0.806 0.815 1.360 13 0.99 Hurbanovo Obs. Refr. 150/2250 67 67 67 0.746 0.754 1.361 11 0.98 Junker,E. Refr. 50/ 600 36 0 36 0.834 0.696 1.959 14 0.98 KSB Refr. 0/ 0 59 0 0 0.720 0.746 - 12 0.95 Kaczmarek,A. Refr. 80/ 400 17 0 0 0.721 0.922 - 13 1.00 Kandilli Obs. Refr. 200/3070 66 66 0 0.791 0.782 - 11 0.98 Kleber,S. Refl. 70/ 0 38 0 0 1.139 1.042 - 20 0.90 Meeus,L. Refr. 102/ 660 41 0 41 0.662 0.691 1.070 10 0.98 Michalovce Obs. Refr. 150/2250 17 17 17 0.840 0.818 1.608 21 0.61 Moeller,M. Refr. 79/1000 50 50 49 0.740 0.735 1.224 10 0.99 Morales,G. Refl. 90/2000 77 0 0 0.544 0.594 - 13 0.96 Rim. Sobota Obs. Refr. 150/2250 54 54 54 0.657 0.707 1.030 9 0.99 Robeck,G. Refl. 203/2000 52 52 52 0.917 0.869 1.803 15 0.99 Ruemmler,F. Refr. 80/1200 11 11 0 0.610 0.676 - 14 0.99 Schott,G.-L. Refr. 80/ 910 15 0 0 1.153 0.979 - 16 9.99 Schroeder,G. Refr. 75/1200 59 59 0 0.838 0.842 - 14 0.98 Seiffert,H.-P. Refr. 100/ 500 26 0 0 0.828 0.835 - 13 0.98 Son,A.T. Refl. 150/4300 28 0 28 0.835 0.855 1.515 10 0.99 Steen,O. Refr. 102/1500 72 0 72 0.698 0.682 1.172 11 0.97 Suzuki,M. Refr. 100/ 0 74 74 0 0.495 0.593 - 15 0.95 Van Loo,F. Refr. 200/3500 8 0 0 0.777 0.780 - 18 0.93 Van Slooten,B. Refr. 90/1300 56 56 0 0.827 0.773 - 11 0.97 WFS,Berlin Refr. 150/2250 16 16 0 0.552 0.620 - 13 0.82 ** Number of Observations: 2483 (N/S: 623; Re': 987) ** ** Number of Observers: 69 (N/S: 14; Re': 29) ** 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.