Provisional sunspot numbers January 1998 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 1. | 0.7 1.4 2.2 | 11 25 36 | 425 | 4 7 2 | | 2. | 0.7 1.1 1.8 | 12 16 29 | 142 | 3 7 3 | | 3. | 0.6 0.6 1.3 | 12 9 21 | 132 | 2 6 3 | | 4. | 0.7 0.3 1.0 | 10 5 15 | 98 | 4 12 3 | | 5. | 0.5 0.0 0.5 | 6 0 6 | 42 | 1 6 1 | | 6. | 0.1 0.0 0.1 | 1 0 1 | 0 | 2 7 2 | | 7. | 0.0 0.0 0.0 | 0 0 0 | 0 | 3 6 2 | | 8. | 0.0 0.0 0.0 | 0 0 0 | 0 | 1 5 2 | | 9. | 0.0 0.0 0.0 | 0 0 0 | 0 | 2 6 2 | | 10. | 0.0 0.4 0.4 | 0 6 6 | 21 | 8 19 7 | | 11. | 0.4 0.9 1.3 | 5 13 17 | 31 | 7 17 6 | | 12. | 0.1 1.4 1.5 | 1 33 34 | 306 | 5 14 5 | | 13. | 0.0 1.8 1.8 | 0 35 35 | 455 | 3 10 3 | | 14. | 0.0 1.5 1.5 | 0 31 31 | 595 | 4 10 4 | | 15. | 0.0 1.4 1.4 | 0 31 31 | 453 | 2 8 2 | | 16. | 0.6 1.9 2.5 | 9 32 41 | 327 | 2 5 2 | | 17. | 0.9 2.4 3.2 | 11 37 48 | 226 | 6 13 2 | | 18. | 1.0 1.5 2.5 | 12 23 35 | 125 | 2 6 3 | | 19. | 0.7 1.4 2.2 | 7 17 23 | 42 | 1 2 1 | | 20. | 0.8 0.3 1.0 | 8 4 11 | 0 | 1 3 1 | | 21. | 0.2 0.2 0.4 | 3 2 5 | 0 | 2 5 1 | | 22. | 0.4 0.7 1.1 | 5 7 12 | 2 | 3 7 2 | | 23. | - - 2.5 | - - 33 | 128 | 0 2 1 | | 24. | 1.9 1.9 3.8 | 20 35 55 | - | 1 2 0 | | 25. | 2.5 1.9 4.4 | 31 39 70 | 285 | 3 8 2 | | 26. | 1.6 1.5 3.2 | 25 31 56 | 639 | 4 14 5 | | 27. | - - 2.7 | - - 53 | 547 | 0 8 1 | | 28. | 0.5 1.1 1.6 | 8 19 27 | 430 | 1 2 2 | | 29. | 1.1 1.8 2.8 | 14 25 39 | 140 | 1 9 3 | | 30. | 0.5 1.0 1.5 | 7 12 19 | - | 2 3 0 | | 31. | 0.4 0.7 1.1 | 5 9 14 | 168 | 7 15 5 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.6 1.0 1.7 | 7.7 17.1 25.9 | 199 | 3 8 3 | +------+----------------+-------------------+-------+--------------+ | Days | 29 29 31 | 29 29 31 | 29 | | +------+----------------+-------------------+-------+--------------+ Based on 244 observations of 24 stations. Edited by Martin Dillig