Provisional sunspot numbers March 2001 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 1.5 2.1 3.6 | 21 27 48 | 234 | 3 11 6 | | 02. | 1.6 2.3 3.9 | 19 35 55 | 384 | 5 12 7 | | 03. | 3.2 1.7 4.9 | 47 34 81 | 662 | 4 9 5 | | 04. | 3.1 2.3 5.4 | 54 37 92 | 1238 | 1 8 2 | | 05. | 3.6 2.3 5.8 | 64 37 101 | 1047 | 7 13 7 | | 06. | 3.4 1.7 5.1 | 69 24 93 | 1153 | 8 21 12 | | 07. | 2.6 1.9 4.6 | 58 26 84 | 1298 | 4 12 7 | | 08. | 3.1 0.5 3.6 | 64 5 69 | 1626 | 5 10 4 | | 09. | 1.6 2.1 3.7 | 50 25 75 | 1202 | 6 12 8 | | 10. | 1.8 2.8 4.5 | 43 42 85 | 1154 | 4 10 5 | | 11. | 1.8 2.9 4.8 | 31 51 83 | 1123 | 3 10 6 | | 12. | 2.4 3.4 5.8 | 36 59 96 | 1243 | 7 13 9 | | 13. | 1.1 2.7 3.8 | 14 57 71 | 1359 | 3 12 6 | | 14. | 0.8 2.7 3.5 | 11 64 75 | 1549 | 6 16 10 | | 15. | 0.9 2.4 3.3 | 15 63 77 | 1664 | 9 16 9 | | 16. | 0.8 2.5 3.2 | 14 57 71 | 1634 | 7 17 11 | | 17. | 1.2 1.7 2.9 | 21 40 61 | 1258 | 4 9 7 | | 18. | 1.3 2.1 3.5 | 18 49 67 | 1296 | 5 14 7 | | 19. | 2.3 1.5 3.7 | 29 34 63 | 1011 | 5 15 7 | | 20. | 3.2 2.2 5.5 | 43 38 82 | 885 | 8 21 13 | | 21. | 3.4 2.5 5.9 | 53 36 90 | 905 | 3 8 5 | | 22. | 3.4 1.7 5.1 | 62 28 89 | 1232 | 2 6 3 | | 23. | 3.7 3.3 7.1 | 72 44 116 | 1496 | 2 8 6 | | 24. | 6.2 4.7 10.9 | 101 79 180 | 2309 | 2 8 3 | | 25. | 5.9 5.3 11.1 | 107 94 200 | 3460 | 3 7 4 | | 26. | 6.4 5.7 12.1 | 114 116 231 | 4442 | 4 10 5 | | 27. | 6.1 7.0 13.1 | 130 122 252 | 4114 | 4 15 10 | | 28. | 6.3 7.1 13.4 | 128 119 247 | 4127 | 3 16 8 | | 29. | 5.5 6.4 11.9 | 117 113 230 | 4780 | 5 16 8 | | 30. | 4.7 6.5 11.2 | 116 112 228 | 4656 | 6 16 10 | | 31. | 4.5 5.9 10.3 | 103 107 210 | 4153 | 9 26 16 | +------+----------------+-------------------+-------+--------------+ | Mean | 3.1 3.2 6.4 | 58.8 57.3 116.1 | 1893 | 5 13 7 | +------+----------------+-------------------+-------+--------------+ | Days | 31 31 31 | 31 31 31 | 31 | | +------+----------------+-------------------+-------+--------------+ Based on 397 observations of 31 stations. Barnes,H. L 76 910 20 Keller,H.U. L 40 480 2 Battaiola,R. S 901250 6 Kluegl,S. L1201000 10 Beltran,G.V. S2001600 17 Michalovce Obs. L1502250 14 Broeckels,G. L1201000 24 Moeller,M. L 791000 18 Deckert,A. L1001650 2 Morales,G. S 902000 25 Egger,F. L 901000 5 Porto,J. L 901240 22 Fritsche,S. L 63 840 12 Rim. Sobota Obs.L1502250 21 Gross,F. L 901300 2 Robeck,G. S2032000 15 Hedewig,R. L 801200 4 Rothermel,J. L1001650 9 Hickmann,R. L 60 700 5 Schott,G.-L. L 80 910 19 Hoerenz,M. L 60 700 19 Schroeder,G. L 751200 13 Holl,M. L 80 400 10 Stolzen,P. L 40 500 10 Hurbanovo Obs. L1502250 22 Strickling,W. S1501200 3 John,J. S1501200 8 Van Slooten,B. L 901300 14 Joppich,H. L 60 900 4 Zamora,S.L. L 901300 22 Kandilli Obs. L2003070 23