SONNE Sunspot Network, Observers 1st Quarter 2009 Name Instrument Obs. Days K Factors s r T. N/S Re' Re g Re' Bavais,J. Refr. 60/ 910 5 0 0 0.626 0.676 - 4 0.99 Brettel,G. Refr. 90/1000 26 0 0 0.749 0.776 - 9 0.91 Bruyland,J. Refr. 0/ 0 15 0 0 0.000 0.000 - 9 9.99 Bullon,J.M. Refl. 200/2000 20 0 0 0.827 0.784 - 15 9.99 Bullon,J.M. Refr. 120/1000 40 0 0 0.563 0.679 - 8 0.91 Carels,J. Refr. 150/1200 52 0 52 0.576 0.560 1.436 6 0.92 Claes,J. Refr. 102/ 0 33 0 33 0.691 0.706 1.354 8 0.94 Claeys,L. Refl. 158/ 0 32 0 0 0.468 0.471 - 10 0.65 Dekelver,J.P. Refr. 0/ 0 30 0 30 0.469 0.525 0.421 9 0.88 Dezeure,R. Refr. 0/ 0 51 0 0 1.853 1.667 - 17 0.31 Dufoer,S. Refl. 114/ 0 28 0 28 0.555 0.605 0.931 8 0.88 Feys Refr. 60/ 900 22 0 0 0.532 0.674 - 7 9.99 Gubbels,G. Refl. 114/ 0 40 0 40 0.470 0.487 0.858 7 0.89 Hofmann,W. Refr. 80/ 400 6 0 0 1.390 1.132 - 31 9.99 Joppich,H. Refr. 60/ 900 7 7 7 0.762 0.782 2.432 3 1.00 Mira Pub. Obs. Refr. 150/5845 9 0 7 0.703 0.709 0.845 10 0.95 Morales,G. Refl. 90/2000 74 0 0 0.787 0.955 - 8 0.85 Preller,S. Refr. 70/ 350 6 0 21 0.000 0.000 0.000 0 9.99 Schirpke,U. Refr. 80/1200 7 0 0 0.794 0.761 - 10 0.95 Schott,G.-L. Refr. 80/ 910 46 0 0 2.636 2.633 - 11 9.99 Smit,F. Refr. 80/1200 26 26 26 0.708 0.680 3.407 6 0.94 Stetter,H. Refr. 125/1875 27 27 27 1.720 1.448 8.308 15 9.99 Taillieu,B. Refr. 150/ 0 39 0 0 0.597 0.591 - 6 0.95 Thooris,B. Refl. 114/ 0 50 0 0 0.742 0.706 - 8 0.88 Van Hessche,D. Refl. 250/ 0 19 0 19 0.914 1.008 1.902 11 0.96 Verboven,R. Refl. 150/ 0 25 0 25 0.619 0.618 0.571 8 0.79 Willi,X. Refl. 200/1320 9 0 0 1.346 1.342 - 11 9.99 Standard Observers: Bachmann,U. Refl. 203/2000 16 0 16 0.595 0.676 0.658 3 1.00 Barnes,H. Refr. 76/ 910 41 0 41 0.780 0.745 1.368 8 0.85 Battaiola,R. Refl. 90/1250 9 0 9 0.856 0.794 1.826 9 0.97 Beltran,G.V. Refl. 200/1600 64 0 0 0.976 0.948 - 9 0.81 Bourgeois,J. Refl. 135/ 800 42 0 14 0.681 0.787 0.955 12 0.36 Bretschneider,H. Refr. 63/ 840 25 25 25 0.569 0.630 0.919 12 0.94 Bruegger,S. Refr. 80/ 400 18 0 18 0.875 0.894 1.611 9 0.92 Chudy,M. Refr. 60/ 700 39 0 0 0.981 0.939 - 15 9.99 Coeckelberghs,H. Refr. 60/ 415 10 0 10 1.129 0.976 1.716 15 0.87 De Backer,H. Refl. 100/1035 59 0 59 0.752 0.789 1.220 6 0.94 De Ceuninck,E. Refr. 100/ 0 52 0 0 0.539 0.564 - 6 0.95 Deman,G. Refr. 150/ 0 25 0 0 0.580 0.606 - 6 0.93 Dubois,F. Refr. 125/2500 65 0 65 0.602 0.630 0.994 7 0.93 Fritsche,S. Refr. 63/ 840 45 0 0 0.822 0.852 - 14 0.27 Gabriel,A. Refr. 125/ 0 45 0 0 0.655 0.670 - 7 0.94 Hedewig,R. Refr. 80/1200 28 0 0 0.809 0.846 - 18 9.99 Hesse,A. Refr. 100/1000 26 0 0 0.656 0.692 - 11 0.90 Hoerenz,M. Refr. 60/ 700 18 0 18 0.805 0.779 1.428 7 0.99 Holl,M. Refr. 80/ 400 33 0 33 0.794 0.808 1.359 10 0.88 Hurbanovo Obs. Refr. 150/2250 54 54 54 0.766 0.777 1.534 7 0.92 Junker,E. Refr. 50/ 600 26 0 26 0.898 0.783 1.968 10 0.94 KSB Refr. 0/ 0 52 0 0 0.768 0.781 - 8 0.90 Kaczmarek,A. Refr. 80/ 400 16 0 0 0.700 0.867 - 6 1.00 Kandilli Obs. Refr. 200/3070 61 61 0 0.724 0.717 - 9 0.85 Kleber,S. Refl. 70/ 0 27 0 0 1.576 1.471 - 11 9.99 Kysucka Obs. Refr. 200/3000 39 0 0 0.744 0.788 - 6 0.98 Lau,D. Refr. 60/ 700 23 0 23 1.034 1.034 1.268 8 0.87 Meeus,L. Refr. 102/ 660 46 0 46 0.624 0.642 1.144 7 0.90 Michalovce Obs. Refr. 150/2250 16 16 16 1.008 0.959 3.074 10 9.99 Mochizuki,E. Refr. 90/1000 66 66 0 0.579 0.632 - 7 0.89 Moeller,M. Refr. 79/1000 39 39 39 0.700 0.692 1.172 8 0.90 Noy,J.R. Refr. 80/1200 19 19 19 0.704 0.752 0.884 6 0.96 Rim. Sobota Obs. Refr. 150/2250 39 39 39 0.644 0.689 0.978 8 0.92 Robeck,G. Refl. 203/2000 32 32 32 0.950 0.917 1.945 12 0.84 Ruemmler,F. Refr. 80/1200 21 21 0 0.627 0.716 - 2 1.00 Schroeder,G. Refr. 75/1200 38 38 0 0.906 0.910 - 11 0.86 Seiffert,H.-P. Refr. 100/ 500 22 0 0 0.873 0.894 - 14 0.29 Son,A.T. Refl. 150/4300 30 0 30 0.890 0.925 1.752 10 0.83 Steen,O. Refr. 102/1500 68 0 68 0.636 0.630 1.130 8 0.91 Stemmler,G. Refr. 63/ 670 43 0 0 0.994 0.876 - 10 0.90 Stolzen,P. Refr. 40/ 500 41 0 0 1.020 0.886 - 14 0.53 Suzuki,M. Refr. 100/ 0 75 75 0 0.477 0.558 - 10 0.78 Tiendesprong Obs Refr. 75/1200 33 0 0 0.703 0.690 - 5 0.95 Van Loo,F. Refr. 200/3500 6 0 0 0.911 0.925 - 12 0.94 Van Slooten,B. Refr. 90/1300 50 50 0 0.786 0.742 - 8 0.93 Viertel,A. Refr. 50/ 540 28 0 0 0.960 0.876 - 14 0.67 WFS,Berlin Refr. 150/2250 17 17 0 0.502 0.546 - 7 0.90 ** Number of Observations: 2431 (N/S: 612; Re': 1015) ** ** Number of Observers: 74 (N/S: 17; Re': 34) ** 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.