Provisional sunspot numbers September 2000 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 1. | 6.3 2.5 8.8 | 98 35 133 | 1653 | 6 14 7 | | 2. | 5.2 2.6 7.8 | 84 40 124 | 1343 | 5 14 6 | | 3. | 4.8 3.9 8.7 | 73 49 122 | 1123 | 5 10 5 | | 4. | 3.6 3.7 7.3 | 59 67 126 | 1747 | 8 16 9 | | 5. | 3.0 2.4 5.4 | 56 51 107 | 1886 | 6 15 8 | | 6. | 4.2 2.1 6.2 | 72 42 114 | 1892 | 4 14 5 | | 7. | 4.4 1.7 6.1 | 68 38 105 | 1838 | 4 14 7 | | 8. | 4.3 1.3 5.6 | 57 29 86 | 1133 | 4 10 4 | | 9. | 3.1 1.1 4.2 | 38 22 60 | 682 | 4 12 7 | | 10. | 1.7 1.0 2.6 | 21 15 37 | 364 | 7 19 12 | | 11. | 1.1 0.4 1.5 | 13 4 17 | 49 | 7 18 11 | | 12. | 1.5 1.5 3.1 | 19 24 43 | 133 | 4 13 7 | | 13. | 0.6 2.9 3.5 | 7 40 47 | 152 | 5 13 5 | | 14. | 1.0 2.8 3.8 | 23 38 61 | 555 | 6 14 7 | | 15. | 1.9 2.6 4.5 | 45 38 83 | 1042 | 5 14 7 | | 16. | 1.8 2.4 4.2 | 51 44 95 | 1846 | 5 10 4 | | 17. | 3.6 1.7 5.2 | 78 40 118 | 2023 | 3 11 4 | | 18. | 3.2 1.1 4.4 | 74 43 118 | 2792 | 5 14 7 | | 19. | 3.6 0.9 4.5 | 86 38 124 | 3695 | 9 21 12 | | 20. | 3.5 1.0 4.4 | 95 41 135 | 4612 | 4 10 6 | | 21. | 2.5 1.7 4.2 | 81 54 135 | 4578 | 4 10 6 | | 22. | 2.2 2.1 4.4 | 88 62 150 | 4855 | 6 15 8 | | 23. | 2.0 2.8 4.8 | 88 71 159 | 5480 | 6 17 9 | | 24. | 2.9 2.9 5.8 | 90 67 157 | 5013 | 6 18 9 | | 25. | 2.8 3.5 6.3 | 87 69 156 | 5307 | 5 14 6 | | 26. | 3.2 4.0 7.3 | 80 75 155 | 4065 | 5 12 6 | | 27. | 3.6 4.5 8.2 | 87 70 157 | 3291 | 6 16 9 | | 28. | 3.4 4.9 8.3 | 66 86 152 | 2530 | 6 15 9 | | 29. | 2.0 4.5 6.5 | 35 87 122 | 2161 | 7 16 8 | | 30. | 1.7 3.4 5.1 | 22 70 91 | 1506 | 8 16 10 | +------+----------------+-------------------+-------+--------------+ | Mean | 3.0 2.5 5.4 | 61.4 48.3 109.6 | 2312 | 6 14 7 | +------+----------------+-------------------+-------+--------------+ | Days | 30 30 30 | 30 30 30 | 30 | | +------+----------------+-------------------+-------+--------------+ Based on 425 observations of 27 stations. Edited by Martin Dillig.