Provisional sunspot numbers October 1997 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 1. | 0.2 1.3 1.5 | 3 15 17 | 111 | 3 8 2 | | 2. | 0.7 0.7 1.5 | 11 8 19 | 112 | 3 11 4 | | 3. | 0.9 1.0 1.9 | 13 11 24 | 202 | 4 15 5 | | 4. | 0.9 0.9 1.7 | 12 9 22 | 162 | 3 8 4 | | 5. | 0.9 0.7 1.6 | 12 7 20 | 116 | 4 12 4 | | 6. | 0.7 0.7 1.4 | 8 8 16 | 49 | 6 16 6 | | 7. | 0.5 0.7 1.2 | 6 8 14 | 30 | 5 12 5 | | 8. | 0.6 0.1 0.7 | 9 1 10 | 27 | 5 10 3 | | 9. | 0.8 0.0 0.8 | 10 0 10 | 42 | 3 7 2 | | 10. | 1.7 0.0 1.7 | 22 0 22 | 69 | 2 5 2 | | 11. | 1.3 0.2 1.5 | 22 2 24 | 86 | 3 12 2 | | 12. | 1.3 0.0 1.3 | 23 0 23 | 245 | 5 13 4 | | 13. | 1.5 0.0 1.5 | 26 0 26 | 252 | 2 5 1 | | 14. | 1.3 0.0 1.3 | 20 0 20 | 138 | 3 9 1 | | 15. | 1.6 0.0 1.6 | 23 0 23 | 46 | 1 5 1 | | 16. | 1.9 0.5 2.4 | 28 6 34 | 82 | 4 12 2 | | 17. | 2.1 0.0 2.1 | 37 0 37 | 456 | 3 10 3 | | 18. | 2.3 0.0 2.3 | 33 0 33 | 277 | 6 15 7 | | 19. | 1.7 0.0 1.7 | 22 0 22 | 283 | 6 16 5 | | 20. | 1.6 0.0 1.6 | 21 0 21 | 165 | 1 7 3 | | 21. | 1.4 0.0 1.4 | 18 0 18 | 104 | 4 15 7 | | 22. | 0.6 0.0 0.6 | 7 0 7 | 16 | 3 15 6 | | 23. | 0.0 0.2 0.2 | 0 2 2 | 0 | 2 6 4 | | 24. | 0.0 0.2 0.2 | 0 2 2 | 3 | 5 13 4 | | 25. | 0.6 0.0 0.6 | 8 0 8 | 24 | 3 8 4 | | 26. | 0.7 0.0 0.7 | 9 0 9 | 27 | 4 8 3 | | 27. | 0.8 0.5 1.3 | 11 7 17 | 118 | 7 16 5 | | 28. | 1.0 1.1 2.1 | 16 17 34 | 224 | 6 14 5 | | 29. | 1.2 1.2 2.3 | 15 19 34 | 162 | 3 7 3 | | 30. | 1.2 1.2 2.3 | 18 23 42 | 528 | 6 17 8 | | 31. | 1.3 1.3 2.6 | 17 24 41 | 520 | 4 12 7 | +------+----------------+-------------------+-------+--------------+ | Mean | 1.1 0.4 1.5 | 15.5 5.5 21.0 | 151 | 4 11 4 | +------+----------------+-------------------+-------+--------------+ | Days | 31 31 31 | 31 31 31 | 31 | | +------+----------------+-------------------+-------+--------------+ Based on 339 observations of 24 stations. Edited by Martin Dillig.