Provisional sunspot numbers April 2003 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 2.7 4.0 6.7 | 44 70 115 | 1258 | 7 11 4 | | 02. | 2.9 4.1 7.0 | 46 79 125 | 1307 | 5 10 3 | | 03. | 3.0 3.2 6.1 | 49 61 110 | 1439 | 6 12 4 | | 04. | 3.0 2.2 5.2 | 42 44 86 | 953 | 5 12 5 | | 05. | 2.7 1.8 4.5 | 38 32 70 | 726 | 5 13 5 | | 06. | 2.0 2.4 4.4 | 26 36 62 | 582 | 9 18 8 | | 07. | 2.0 2.3 4.3 | 25 29 54 | 388 | 8 14 5 | | 08. | 2.1 0.8 2.9 | 29 9 38 | 280 | 6 12 4 | | 09. | 2.0 1.3 3.3 | 26 16 43 | 333 | 8 15 5 | | 10. | 1.5 2.2 3.7 | 23 25 48 | 519 | 7 10 5 | | 11. | 1.1 0.8 1.9 | 17 12 29 | 464 | 5 10 2 | | 12. | 1.4 1.1 2.5 | 26 15 40 | 714 | 7 14 6 | | 13. | 1.5 1.6 3.1 | 24 22 45 | 492 | 8 19 7 | | 14. | 1.7 1.6 3.2 | 22 22 44 | 275 | 7 19 9 | | 15. | 1.1 1.5 2.6 | 14 20 34 | 132 | 7 17 7 | | 16. | 0.3 1.1 1.4 | 3 13 17 | 56 | 2 18 8 | | 17. | 0.8 1.0 1.8 | 9 13 23 | 121 | 4 16 8 | | 18. | 1.0 1.4 2.4 | 12 17 29 | 177 | 7 18 6 | | 19. | 1.6 1.8 3.4 | 21 23 44 | 268 | 5 10 3 | | 20. | 2.4 1.5 3.9 | 34 24 58 | 432 | 6 16 7 | | 21. | 2.7 1.8 4.6 | 45 29 74 | 656 | 7 14 5 | | 22. | 2.8 2.2 5.1 | 51 37 88 | 1001 | 8 17 9 | | 23. | 2.7 1.3 3.9 | 51 22 73 | 1150 | 8 19 9 | | 24. | 3.5 1.2 4.8 | 59 26 85 | 1052 | 9 17 10 | | 25. | 4.2 1.6 5.8 | 73 27 100 | 1332 | 7 13 7 | | 26. | 3.3 3.1 6.3 | 58 44 102 | 1406 | 3 8 3 | | 27. | 3.2 3.8 7.0 | 48 73 121 | 1399 | 4 10 3 | | 28. | 2.0 4.5 6.5 | 34 89 123 | 1600 | 7 9 4 | | 29. | 1.7 4.9 6.7 | 30 101 131 | 2538 | 7 14 7 | | 30. | 1.7 4.6 6.3 | 27 90 117 | 2306 | 6 11 6 | +------+----------------+-------------------+-------+--------------+ | Mean | 2.2 2.2 4.4 | 33.6 37.4 71.0 | 845 | 6 14 6 | +------+----------------+-------------------+-------+--------------+ | Days | 30 30 30 | 30 30 30 | 30 | | +------+----------------+-------------------+-------+--------------+ Based on 416 observations of 24 stations. Battaiola,R. S 901250 8 Keller,H.U. L 40 480 6 Beltran,G.V. S2001600 18 Michalovce Obs. L1502250 15 Egger,F. L 901000 24 Moeller,M. L 791000 28 Fritsche,S. L 63 840 27 Morales,G. S 902000 30 Gahsche,C.-D. L 751200 19 Rim. Sobota Obs.L1502250 29 Goetz,M. S1001000 19 Schott,G.-L. S2032032 23 Hannig,R. L114 600 11 Schulze,W. L 63 840 17 Hickmann,R. L 60 700 9 Strickling,W. S1501200 5 Hoerenz,M. L 60 700 17 Suzuki,M. L100 0 17 Hurbanovo Obs. L1502250 27 Van Slooten,B. L 901300 28 John,J. S1501200 16 Willi,X. S2001320 6 Joppich,H. L 60 900 10 Wolf,T. L 60 700 7