Provisional sunspot numbers April 2002 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 2.8 2.7 5.5 | 87 45 132 | 3245 | 6 17 7 | | 02. | 3.3 3.0 6.3 | 84 51 135 | 3210 | 6 20 7 | | 03. | 3.6 3.1 6.7 | 84 50 134 | 2950 | 9 21 9 | | 04. | 4.1 2.5 6.6 | 90 40 131 | 2618 | 7 18 7 | | 05. | 4.4 2.4 6.8 | 95 38 133 | 2323 | 6 16 6 | | 06. | 4.7 3.2 7.8 | 91 45 136 | 2343 | 5 16 4 | | 07. | 4.6 3.8 8.4 | 89 61 150 | 2504 | 4 15 7 | | 08. | 4.6 3.6 8.2 | 85 58 143 | 2626 | 5 14 5 | | 09. | 4.3 4.8 9.1 | 83 73 157 | 2566 | 6 16 5 | | 10. | 4.0 5.0 9.0 | 83 77 160 | 2497 | 6 14 4 | | 11. | 4.2 4.7 9.0 | 85 77 161 | 2755 | 3 11 3 | | 12. | 4.2 4.7 8.9 | 83 84 167 | 2932 | 3 7 1 | | 13. | 3.4 5.1 8.5 | 60 93 153 | - | 3 5 0 | | 14. | 4.2 4.5 8.7 | 69 85 153 | - | 3 7 0 | | 15. | 4.5 4.0 8.5 | 76 74 150 | 2625 | 3 10 2 | | 16. | 3.7 3.7 7.3 | 57 68 124 | 2277 | 3 8 2 | | 17. | 2.5 2.7 5.2 | 39 60 98 | 2185 | 4 9 3 | | 18. | 3.4 2.8 6.2 | 46 61 107 | 1747 | 6 15 6 | | 19. | 2.4 3.7 6.1 | 36 81 117 | 2241 | 4 11 3 | | 20. | 2.1 4.2 6.3 | 37 76 113 | 1118 | 3 9 2 | | 21. | 3.4 3.0 6.4 | 55 45 100 | 973 | 3 10 5 | | 22. | 3.6 2.8 6.4 | 61 41 102 | 851 | 6 15 7 | | 23. | 3.9 3.1 7.0 | 75 43 118 | 1408 | 6 14 5 | | 24. | 4.7 4.7 9.4 | 79 78 157 | 1746 | 5 10 2 | | 25. | 4.4 4.7 9.2 | 78 73 151 | 1405 | 7 12 4 | | 26. | 4.3 3.8 8.1 | 75 51 126 | 993 | 3 7 2 | | 27. | 4.0 1.4 5.4 | 72 17 88 | 1075 | 5 12 4 | | 28. | 3.5 0.8 4.4 | 67 10 77 | 591 | 2 8 1 | | 29. | 4.5 1.5 5.9 | 68 17 85 | 621 | 6 17 5 | | 30. | 5.5 1.1 6.6 | 73 15 88 | 468 | 3 12 6 | +------+----------------+-------------------+-------+--------------+ | Mean | 3.9 3.4 7.3 | 72.0 56.2 128.2 | 1960 | 5 13 4 | +------+----------------+-------------------+-------+--------------+ | Days | 30 30 30 | 30 30 30 | 28 | | +------+----------------+-------------------+-------+--------------+ Based on 376 observations of 26 stations. Barnes,H. L 76 910 14 Kandilli Obs. L2003070 7 Battaiola,R. S 901250 9 Keller,H.U. L 40 480 5 Beltran,G.V. S2001600 14 Kluegl,S. L1201000 16 Berg,R. S1001000 13 Michalovce Obs. L1502250 18 DKS Eriskirch L1521824 2 Moeller,M. L 791000 18 Egger,F. L 901000 22 Morales,G. S 902000 28 Fritsche,S. L 63 840 20 Schott,G.-L. S2032032 23 Hickmann,R. L 60 700 12 Schroeder,G. L 751200 18 Hoerenz,M. L 60 700 7 Stolzen,P. L 40 500 21 Hofmann,W. L 80 400 11 Strickling,W. S1501200 6 Holl,M. L 80 400 18 Suzuki,M. L100 0 22 John,J. S1501200 16 Van Slooten,B. L 901300 24 Joppich,H. L 60 900 6 Willi,X. S2001320 6