Provisional sunspot numbers March 1997 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 1. | 0.0 0.0 0.0 | 0 0 0 | 0 | 8 17 8 | | 2. | 0.0 0.0 0.0 | 0 0 0 | 0 | 6 13 5 | | 3. | 0.0 0.0 0.0 | 0 0 0 | 0 | 5 12 7 | | 4. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 16 7 | | 5. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 13 4 | | 6. | 0.6 0.0 0.6 | 7 0 7 | 36 | 4 12 6 | | 7. | 0.8 0.0 0.8 | 10 0 10 | 61 | 7 15 5 | | 8. | 0.7 0.3 1.0 | 10 4 14 | 102 | 5 14 6 | | 9. | 0.6 0.5 1.1 | 9 6 15 | 167 | 6 18 8 | | 10. | 0.9 0.1 0.9 | 13 1 13 | 84 | 9 20 9 | | 11. | 0.9 0.0 0.9 | 14 0 14 | 104 | 7 14 5 | | 12. | 0.9 0.0 0.9 | 15 0 15 | 73 | 6 12 6 | | 13. | 1.1 0.0 1.1 | 17 0 17 | 76 | 2 4 1 | | 14. | 0.8 0.0 0.8 | 11 0 11 | 27 | 2 2 1 | | 15. | 0.8 0.9 1.7 | 13 12 24 | 33 | 2 3 2 | | 16. | 0.3 0.2 0.5 | 5 3 7 | 41 | 3 6 3 | | 17. | 0.2 0.5 0.6 | 2 6 9 | 45 | 5 9 4 | | 18. | 0.0 0.3 0.3 | 0 3 3 | 0 | 5 9 3 | | 19. | 0.0 0.0 0.0 | 0 0 0 | 0 | 2 4 2 | | 20. | 0.0 0.2 0.2 | 0 2 2 | 3 | 3 4 2 | | 21. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 9 4 | | 22. | 0.0 0.0 0.0 | 0 0 0 | 0 | 7 17 6 | | 23. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 6 2 | | 24. | 0.0 0.0 0.0 | 0 0 0 | 0 | 4 9 5 | | 25. | 0.0 0.0 0.0 | 0 0 0 | 0 | 5 9 4 | | 26. | 0.0 0.0 0.0 | 0 0 0 | 0 | 1 7 2 | | 27. | 0.0 0.3 0.3 | 0 4 4 | 22 | 6 11 5 | | 28. | 0.0 0.8 0.8 | 0 14 14 | 166 | 4 13 6 | | 29. | 0.0 1.0 1.0 | 0 19 19 | 333 | 7 15 7 | | 30. | 0.0 1.0 1.0 | 0 22 22 | 405 | 6 13 6 | | 31. | 0.0 0.9 0.9 | 0 18 18 | 225 | 9 17 8 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.3 0.2 0.5 | 4.1 3.7 7.7 | 65 | 5 11 5 | +------+----------------+-------------------+-------+--------------+ | Days | 31 31 31 | 31 31 31 | 31 | | +------+----------------+-------------------+-------+--------------+ Based on 343 observations of 22 stations. Edited by Martin Dillig