Provisional sunspot numbers February 2010 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 0.8 0.0 0.8 | 13 0 13 | 79 | 7 12 5 | | 02. | 0.8 0.0 0.8 | 10 0 10 | 76 | 4 9 4 | | 03. | 0.9 0.0 0.9 | 11 0 11 | 65 | 6 19 5 | | 04. | 0.7 0.0 0.7 | 8 0 8 | 40 | 7 10 5 | | 05. | 1.0 0.0 1.0 | 11 0 11 | 31 | 4 12 5 | | 06. | 1.6 0.0 1.6 | 26 0 26 | 324 | 2 8 2 | | 07. | 1.5 0.0 1.5 | 30 0 30 | 784 | 3 8 2 | | 08. | 1.7 0.3 2.1 | 41 3 44 | 1305 | 5 9 4 | | 09. | 2.0 0.6 2.5 | 39 6 45 | 716 | 3 10 4 | | 10. | 1.7 0.2 2.0 | 39 3 42 | 1246 | 5 11 3 | | 11. | 1.3 0.0 1.3 | 29 0 29 | 628 | 3 6 2 | | 12. | 1.7 0.0 1.7 | 30 0 30 | 612 | 3 8 1 | | 13. | 1.6 0.0 1.6 | 32 0 32 | 445 | 4 10 4 | | 14. | 1.9 0.0 1.9 | 26 0 26 | 278 | 6 14 5 | | 15. | 1.5 0.0 1.5 | 23 0 23 | 130 | 6 13 4 | | 16. | 1.6 0.0 1.6 | 23 0 23 | 232 | 8 19 8 | | 17. | 1.0 0.7 1.7 | 13 12 25 | 117 | 9 20 6 | | 18. | 0.1 1.0 1.1 | 1 18 19 | - | 5 8 0 | | 19. | 0.0 0.9 0.9 | 0 16 16 | 186 | 6 12 5 | | 20. | 0.0 0.8 0.8 | 0 16 16 | 160 | 8 21 8 | | 21. | 0.0 0.9 0.9 | 0 15 15 | 94 | 7 19 10 | | 22. | 0.1 0.8 0.9 | 1 12 13 | 92 | 7 11 3 | | 23. | 0.0 1.2 1.2 | 0 16 16 | 71 | 4 10 3 | | 24. | 0.4 1.1 1.5 | 5 16 21 | 93 | 4 12 3 | | 25. | 0.8 0.8 1.6 | 10 12 22 | 66 | 9 18 7 | | 26. | 0.8 0.5 1.4 | 11 7 18 | 102 | 3 11 4 | | 27. | 0.8 0.3 1.1 | 11 3 14 | 102 | 8 20 10 | | 28. | 0.8 0.0 0.8 | 10 0 10 | 62 | 6 12 5 | +------+----------------+-------------------+-------+--------------+ | Mean | 1.0 0.4 1.3 | 16.2 5.5 21.7 | 301 | 5 13 5 | +------+----------------+-------------------+-------+--------------+ | Days | 28 28 28 | 28 28 28 | 27 | | +------+----------------+-------------------+-------+--------------+ Based on 352 observations of 34 stations. Araujo,G. L 80 910 25 Kaczmarek,A. L 80 400 4 Barnes,H. L 76 910 10 Kandilli Obs. L2003070 15 Battaiola,R. S 901250 3 Lau,D. L 60 700 5 Beltran,G.V. S2001600 22 Michalovce Obs. L1502250 3 Bretschneider,H.L 63 840 10 Moeller,M. L 791000 12 Bruegger,S. L 80 400 4 Morales,G. S 902000 25 Bullon,J.M. L1201000 17 Rim. Sobota Obs.L1502250 6 Bullon,J.M. L150 750 1 Robeck,G. S2032000 10 Chudy,M. L 60 700 8 Ruemmler,F. L 801200 9 Dubois,F. L1252500 19 Schott,G.-L. L 80 910 9 Fritsche,S. L 63 840 9 Schroeder,G. L 751200 14 Gieseke,R. F 50 300 10 Smit,F. L 801200 12 Hesse,A. L1001000 4 Suzuki,M. L100 0 23 Hoerenz,M. L 60 700 4 Tiendesprong ObsL 751200 7 Hurbanovo Obs. L1502250 19 Van Slooten,B. L 901300 14 Joppich,H. L 60 900 3 WFS,Berlin L1502250 3 Junker,E. L 50 600 8 Willi,X. S2001320 5