SONNE Sunspot Network, 2007, Observers Name Instrument Obs. days K factors s r T. N/S Re' Re g Re' Astrolab Jeugdw. Refr. 0/ 0 23 0 0 0.868 0.835 - 21 0.85 Bavais,J. Refr. 60/ 910 22 0 0 0.778 0.786 - 14 0.90 Boschat,M. Refr. 120/1000 59 0 0 0.736 0.744 - 9 0.95 Brettel,G. Refr. 90/1000 166 0 0 0.796 0.811 - 10 0.96 Buck,A. Refl. 125/1875 222 0 0 0.809 0.741 - 11 0.94 Bulling,A. Refl. 70/1000 128 0 128 0.782 0.827 1.154 9 0.97 Bullon,J.M. Refr. 120/1000 25 0 0 0.828 0.878 - 14 0.95 (+) Capricornio Obs. Refr. 102/1500 162 0 0 0.606 0.729 - 15 0.92 Carels,J. Refr. 150/1200 224 0 224 0.638 0.651 1.158 11 0.95 Claes,J. Refr. 102/ 0 193 0 173 0.724 0.740 1.231 9 0.97 Claeys,L. Refl. 158/ 0 238 0 0 0.775 0.787 - 12 0.94 DKS Eriskirch Refl. 203/2000 16 0 0 1.034 0.850 - 7 0.95 DKS Eriskirch Refr. 152/1824 12 0 0 0.884 0.860 - 14 0.79 (+) Daub,K.-P. Refr. 152/1200 84 0 0 0.760 0.716 - 8 0.96 De Kerchove,A. Refl. 203/2032 26 0 0 1.004 0.883 - 12 0.86 Dewaele,K. Refl. 114/ 0 8 0 0 0.760 0.850 - 3 0.99 Dezeure,R. Refr. 0/ 0 84 0 0 1.282 1.107 - 16 0.92 Dufoer,S. Refl. 114/ 0 122 0 107 0.792 0.909 1.160 13 0.95 Gadyne,R. Refl. 203/2032 15 0 0 0.878 0.950 - 10 0.98 Gahsche,C.-D. Refr. 75/1200 31 0 0 0.676 0.709 - 12 0.93 Goetz,M. Refl. 100/1000 29 0 29 0.753 0.847 0.992 14 0.97 Gubbels,G. Refl. 114/ 0 227 0 226 0.702 0.712 1.005 11 0.95 Gysel,L. Refr. 90/1250 34 0 0 1.930 1.457 - 26 0.64 Hay,K. Refl. 100/ 0 31 0 0 0.961 0.853 - 13 0.93 Hempel,K. Refr. 76/ 700 27 0 19 0.928 0.838 2.255 12 0.97 Herfurth,A. Refr. 250/1500 52 0 0 0.796 0.769 - 23 0.84 (+) Hesse,A. Refr. 100/1000 129 0 0 0.667 0.712 - 12 0.96 Hofmann,W. Refr. 80/ 400 67 0 0 1.550 1.282 - 25 0.85 Holl,M. Refr. 90/1000 23 0 23 0.640 0.751 0.910 7 0.95 Leventhal,M. Refl. 250/2500 127 0 0 0.816 0.816 - 15 0.92 Mira Pub. Obs. Refr. 150/5845 83 0 66 0.746 0.734 1.189 12 0.94 Paetzold,A. Refl. 254/ 0 12 0 0 0.732 0.819 - 7 0.93 Schirpke,U. Refr. 80/1200 48 0 0 0.673 0.698 - 14 0.92 Skerhutt,A. Refr. 60/ 700 6 0 0 0.857 0.875 - 11 0.92 Smit,F. Refr. 80/1200 197 197 197 0.994 0.949 1.645 12 0.91 Stetter,H. Refr. 125/1875 146 146 146 1.662 1.482 3.155 24 0.81 Strickling,W. Refl. 150/1200 26 26 26 0.902 0.775 2.308 10 0.96 Szulc,M. Refr. 65/ 800 24 0 24 0.568 0.586 0.819 6 0.97 Taillieu,B. Refr. 150/ 0 212 0 0 0.747 0.710 - 10 0.94 Thooris,B. Refl. 114/ 0 180 0 0 0.876 0.800 - 15 0.92 (+) Tiendesprong Obs Refr. 75/1200 182 0 0 0.717 0.708 - 11 0.96 Van Hessche,D. Refl. 250/ 0 46 0 41 0.896 0.943 1.175 17 0.88 Vanleenhove,M. Refr. 0/ 0 5 0 5 0.840 0.950 1.305 11 0.45 Verboven,R. Refl. 150/ 0 134 0 0 0.897 0.847 - 12 0.95 Willi,X. Refl. 200/1320 92 0 0 1.138 1.248 - 21 0.89 Witten,H. Fegl. 70/ 0 38 0 0 1.102 0.978 - 20 0.85 Wollenhaupt,G. Refr. 80/ 600 17 0 16 0.677 0.580 2.458 11 0.93 Standard observers: Araujo,G. Refr. 80/ 910 347 0 0 0.667 0.683 - 9 0.97 Bachmann,U. Refl. 203/2000 81 0 81 0.613 0.695 0.731 11 0.95 Barnes,H. Refr. 76/ 910 138 0 138 0.804 0.774 1.454 12 0.94 Battaiola,R. Refl. 90/1250 111 0 111 0.878 0.840 2.033 10 0.94 Beltran,G.V. Refl. 200/1600 158 0 0 0.889 0.849 - 15 0.93 Bourgeois,J. Refl. 135/ 800 164 0 134 0.682 0.787 1.001 10 0.96 Bretschneider,H. Refr. 63/ 840 188 188 188 0.568 0.627 0.964 11 0.95 (-) Bruegger,S. Refr. 80/ 400 91 0 91 0.964 0.934 1.571 14 0.93 Bullon,J.M. Refr. 102/1500 203 0 0 0.539 0.658 - 14 0.90 Chudy,M. Refr. 60/ 700 143 0 0 0.934 0.857 - 12 0.95 Coeckelberghs,H. Refr. 60/ 415 104 0 104 1.142 0.940 2.061 16 0.91 (-) Conill,J. Refr. 80/ 760 158 0 158 0.697 0.752 0.963 14 0.91 De Backer,H. Refl. 100/1035 266 0 266 0.782 0.789 1.135 10 0.96 De Ceuninck,E. Refr. 100/ 0 278 0 0 0.611 0.612 - 12 0.93 (-) De Vriese,J. Refr. 102/1500 32 0 0 0.807 0.922 - 13 0.92 Deman,G. Refr. 150/ 0 135 0 0 0.610 0.630 - 9 0.96 Dubois,F. Refr. 125/2500 283 0 283 0.642 0.677 0.968 9 0.97 Fritsche,S. Refr. 63/ 840 193 0 0 0.756 0.796 - 10 0.95 Gabriel,A. Refr. 125/ 0 324 0 0 0.676 0.688 - 8 0.97 Hedewig,R. Refr. 80/1200 234 0 0 0.768 0.824 - 11 0.95 Hickmann,R. Refr. 60/ 700 86 0 86 0.920 0.963 1.238 15 0.94 Hoerenz,M. Refr. 60/ 700 106 0 106 0.816 0.797 1.360 9 0.97 Holl,M. Refr. 80/ 400 216 0 216 0.778 0.812 1.242 10 0.97 - Hunstiege,H.J. Refr. 50/ 300 40 0 0 1.133 0.919 - 24 0.83 Hurbanovo Obs. Refr. 150/2250 292 292 292 0.754 0.753 1.441 9 0.97 - Joppich,H. Refr. 60/ 900 63 62 63 0.988 0.923 2.757 13 0.92 Junker,E. Refr. 50/ 600 164 0 164 0.816 0.691 2.216 12 0.93 KSB Refr. 0/ 0 250 0 0 0.735 0.754 - 9 0.96 Kaczmarek,A. Refr. 80/ 400 82 0 0 0.737 0.959 - 13 0.93 Kandilli Obs. Refr. 200/3070 287 287 0 0.790 0.789 - 10 0.96 Kleber,S. Refl. 70/ 0 174 0 0 1.199 1.084 - 18 0.88 Kysucka Obs. Refr. 200/3000 232 0 0 0.713 0.786 - 11 0.96 Lau,D. Refr. 60/ 700 148 0 148 0.862 0.804 1.211 14 0.91 Meeus,L. Refr. 102/ 660 184 0 184 0.675 0.701 1.070 8 0.97 Michalovce Obs. Refr. 150/2250 129 129 129 0.841 0.822 1.666 11 0.96 Mochizuki,E. Refr. 90/1000 244 244 0 0.568 0.629 - 10 0.96 Moeller,M. Refr. 79/1000 231 231 231 0.755 0.743 1.256 8 0.98 (-) Morales,G. Refl. 90/2000 320 0 0 0.512 0.562 - 16 0.88 Noy,J.R. Refr. 80/1200 85 85 85 0.708 0.781 0.744 11 0.95 Rim. Sobota Obs. Refr. 150/2250 267 267 267 0.661 0.706 1.047 10 0.96 Robeck,G. Refl. 203/2000 260 260 260 0.909 0.876 1.710 12 0.96 Ruemmler,F. Refr. 80/1200 145 142 0 0.593 0.675 - 14 0.83 (-) Schott,G.-L. Refr. 80/ 910 136 0 0 1.258 1.096 - 18 0.92 Schroeder,G. Refr. 75/1200 230 230 0 0.838 0.831 - 11 0.96 (-) Schulze,W. Refr. 63/ 840 57 57 0 0.755 0.755 - 9 0.97 Seiffert,H.-P. Refr. 100/ 500 143 0 0 0.840 0.849 - 14 0.96 Son,A.T. Refl. 150/4300 150 0 132 0.848 0.880 1.515 10 0.96 Steen,O. Refr. 102/1500 312 0 312 0.694 0.672 1.172 10 0.95 (-) Stemmler,G. Refr. 63/ 670 220 0 0 0.937 0.847 - 16 0.90 Stolzen,P. Refr. 40/ 500 204 0 0 1.018 0.862 - 12 0.93 Suzuki,M. Refr. 100/ 0 293 293 0 0.501 0.599 - 11 0.95 (-) Van Heek,K.H. Refl. 100/1000 45 0 0 0.858 0.833 - 9 0.88 Van Loo,F. Refr. 200/3500 100 0 0 0.743 0.767 - 13 0.91 Van Slooten,B. Refr. 90/1300 283 283 0 0.820 0.777 - 10 0.97 Viertel,A. Refr. 50/ 540 152 0 0 0.949 0.854 - 13 0.92 WFS,Berlin Refr. 150/2250 126 125 0 0.577 0.650 - 9 0.98 Standard observers with less than 5 observations in 2007: - Broeckels,G. Refr. 120/1000 0 0 0 - - - - - (-) Claeys,L. Refl. 63/ 900 0 0 0 - - - - - - Freitag,U. Refr. 102/1000 0 0 0 - - - - - - Haase,J. Refr. 153/1300 0 0 0 - - - - - - Schrattenholz,B. Refr. 63/ 840 0 0 0 - - - - - (-) Taillieu,B. Refl. 250/1200 0 0 0 - - - - - - Vstw. Wertheim Refr. 155/1400 0 0 0 - - - - - (-) Winzer,M. Refr. 80/ 840 0 0 0 - - - - - ** Number of observations: 14141 (N/S: 3544; Re': 5679) ** ** Number of observers: 103 (N/S: 19; Re': 41) ** 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 the 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 + : Standard observer from 2008 on (+): Standard observer candidate for 2009 (-): Criteria for standard observers not fulfilled in 2007 - : Normal observer from 2008 on Observers with less than 5 observations have been excluded.