Provisional sunspot numbers February 2001 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 4.6 0.6 5.2 | 66 9 75 | 524 | 5 11 6 | | 02. | 5.0 0.3 5.3 | 82 4 86 | 759 | 5 13 9 | | 03. | 5.1 1.1 6.2 | 80 13 93 | 898 | 4 7 5 | | 04. | 4.7 1.8 6.5 | 72 21 93 | 862 | 3 8 4 | | 05. | 3.8 3.4 7.2 | 63 49 111 | 1025 | 2 7 3 | | 06. | 4.0 2.9 6.9 | 67 52 119 | 1863 | 5 13 4 | | 07. | 4.3 2.3 6.7 | 77 43 120 | 1331 | 5 12 5 | | 08. | 4.0 3.6 7.6 | 66 55 122 | 1266 | 5 14 6 | | 09. | 5.0 3.4 8.4 | 76 56 131 | 1134 | 7 16 7 | | 10. | 4.3 2.4 6.7 | 56 50 106 | 1340 | 7 25 13 | | 11. | 4.6 2.5 7.1 | 56 45 102 | 840 | 4 12 7 | | 12. | 4.2 1.7 5.9 | 51 28 78 | 443 | 4 10 4 | | 13. | 3.4 2.5 5.9 | 46 35 81 | 544 | 3 12 6 | | 14. | 3.2 2.7 5.9 | 43 33 76 | 403 | 5 16 7 | | 15. | 3.1 3.1 6.2 | 42 36 78 | 404 | 9 20 11 | | 16. | 2.9 1.9 4.8 | 39 22 61 | 282 | 4 14 7 | | 17. | 3.1 2.7 5.8 | 35 38 73 | 377 | 5 12 7 | | 18. | 2.3 3.3 5.6 | 26 49 75 | 429 | 6 15 8 | | 19. | 2.3 3.2 5.5 | 27 55 82 | 652 | 4 9 4 | | 20. | 1.7 4.1 5.8 | 18 72 90 | 919 | 4 10 5 | | 21. | 1.5 5.4 6.9 | 21 86 107 | 926 | 5 10 4 | | 22. | 1.7 3.9 5.6 | 25 62 87 | 740 | 5 11 4 | | 23. | 1.2 3.3 4.5 | 19 52 71 | 669 | 5 17 8 | | 24. | 1.0 2.6 3.6 | 19 39 58 | 604 | 7 18 10 | | 25. | 0.7 2.8 3.5 | 20 41 61 | 496 | 5 17 7 | | 26. | 0.8 2.2 3.0 | 27 28 54 | 731 | 6 16 7 | | 27. | 1.0 2.1 3.1 | 25 26 51 | 486 | 9 19 9 | | 28. | 1.1 2.3 3.4 | 23 32 55 | 445 | 7 17 8 | +------+----------------+-------------------+-------+--------------+ | Mean | 3.0 2.6 5.7 | 45.2 40.4 85.6 | 764 | 5 14 7 | +------+----------------+-------------------+-------+--------------+ | Days | 28 28 28 | 28 28 28 | 28 | | +------+----------------+-------------------+-------+--------------+ Based on 381 observations of 31 stations. Barnes,H. L 76 910 13 Joppich,H. L 60 900 3 Battaiola,R. S 901250 6 Kandilli Obs. L2003070 17 Beltran,G.V. S2001600 9 Keller,H.U. L 40 480 4 Broeckels,G. L1201000 16 Kluegl,S. L1201000 12 Bruegger,S. L1021000 3 Michalovce Obs. L1502250 9 Bullon,J.M. L1021500 20 Moeller,M. L 791000 21 Deckert,A. L1001650 2 Morales,G. S 902000 25 Egger,F. L 901000 16 Porto,J. L 901240 21 Fritsche,S. L 63 840 12 Rim. Sobota Obs.L1502250 24 Griesing,S. L 80 910 5 Rothermel,J. L1001650 2 Gross,F. L 901300 2 Schott,G.-L. L 80 910 16 Hedewig,R. L 801200 8 Schroeder,G. L 751200 15 Hickmann,R. L 60 700 5 Stolzen,P. L 40 500 11 Hoerenz,M. L 60 700 17 Van Slooten,B. L 901300 17 Hurbanovo Obs. L1502250 24 Zamora,S.L. L 901300 19 John,J. S1501200 8