Provisional sunspot numbers October 1999 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 1. | 2.2 1.1 3.3 | 26 13 39 | 168 | 5 13 3 | | 2. | 2.0 2.1 4.1 | 24 23 47 | 129 | 3 9 1 | | 3. | 1.8 2.8 4.6 | 25 36 61 | 274 | 3 11 2 | | 4. | 3.2 2.2 5.5 | 42 37 79 | 619 | 3 8 3 | | 5. | 4.8 3.3 8.0 | 70 55 125 | 1058 | 7 15 4 | | 6. | 4.4 3.6 8.0 | 74 54 128 | 1011 | 3 10 3 | | 7. | 5.6 3.5 9.0 | 87 50 137 | 907 | 3 10 5 | | 8. | 6.3 2.7 9.0 | 86 36 122 | 848 | 1 2 2 | | 9. | 5.0 3.5 8.5 | 76 44 119 | 588 | 2 5 2 | | 10. | 5.6 3.4 9.0 | 88 42 129 | 1087 | 2 5 1 | | 11. | 7.1 2.0 9.1 | 108 26 134 | 1284 | 3 7 2 | | 12. | 6.3 1.5 7.9 | 118 17 135 | 1919 | 8 16 5 | | 13. | 6.7 1.5 8.2 | 138 17 155 | 2506 | 8 17 6 | | 14. | 6.0 0.5 6.5 | 138 6 144 | 3932 | 3 10 5 | | 15. | 5.2 0.0 5.2 | 124 0 124 | 3385 | 9 19 6 | | 16. | 4.0 0.4 4.4 | 114 4 118 | 3025 | 9 22 9 | | 17. | 4.3 0.9 5.2 | 109 10 119 | 2438 | 7 17 8 | | 18. | 3.9 1.3 5.1 | 100 14 115 | 3461 | 5 15 6 | | 19. | 3.5 1.3 4.7 | 88 20 108 | 2840 | 8 19 8 | | 20. | 4.2 1.4 5.6 | 84 26 110 | 2302 | 8 19 8 | | 21. | 3.6 1.7 5.3 | 60 35 95 | 1145 | 4 8 3 | | 22. | 2.5 2.2 4.8 | 34 57 92 | 1688 | 8 16 5 | | 23. | 1.4 2.5 3.8 | 18 63 81 | 1786 | 5 7 3 | | 24. | 2.0 2.5 4.5 | 25 64 89 | 2017 | 3 8 1 | | 25. | 2.0 3.3 5.3 | 31 89 120 | 2924 | 6 12 4 | | 26. | 2.0 3.7 5.6 | 35 92 128 | 4557 | 3 9 2 | | 27. | 2.6 4.6 7.2 | 55 102 157 | 3758 | 3 8 4 | | 28. | 3.0 3.4 6.3 | 50 71 121 | 1839 | 5 9 3 | | 29. | 1.9 4.7 6.6 | 47 98 145 | 3409 | 4 13 3 | | 30. | 3.4 3.9 7.4 | 67 77 144 | 2567 | 9 16 7 | | 31. | 3.4 4.4 7.8 | 59 77 137 | 2098 | 8 17 5 | +------+----------------+-------------------+-------+--------------+ | Mean | 3.9 2.4 6.3 | 71.0 43.7 114.7 | 1986 | 5 12 4 | +------+----------------+-------------------+-------+--------------+ | Days | 31 31 31 | 31 31 31 | 31 | | +------+----------------+-------------------+-------+--------------+ Based on 372 observations of 26 stations. Edited by Martin Dillig