Provisional sunspot numbers September 2021 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 0.7 1.1 1.8 | 6 22 28 | 441 | 3 20 11 | | 02. | 0.0 1.5 1.5 | 0 25 25 | 322 | 6 19 12 | | 03. | 0.2 1.1 1.3 | 3 17 20 | 200 | 5 24 11 | | 04. | 1.6 2.0 3.7 | 27 26 53 | 363 | 2 15 8 | | 05. | 0.8 2.4 3.3 | 16 38 54 | 665 | 4 21 8 | | 06. | 0.7 2.2 2.9 | 15 46 61 | 1216 | 5 20 7 | | 07. | 0.7 2.2 2.9 | 13 46 59 | 1088 | 7 21 11 | | 08. | 0.7 2.9 3.6 | 10 59 69 | 1099 | 7 25 13 | | 09. | 0.8 3.2 4.0 | 9 64 73 | 979 | 8 24 11 | | 10. | 0.7 3.1 3.9 | 8 62 70 | 1219 | 5 13 8 | | 11. | 0.7 2.0 2.7 | 7 46 53 | 893 | 2 10 5 | | 12. | 0.0 2.2 2.2 | 0 36 36 | 353 | 2 7 2 | | 13. | 0.0 1.6 1.6 | 0 25 25 | 286 | 5 13 4 | | 14. | 0.0 1.3 1.3 | 0 16 16 | 156 | 4 17 6 | | 15. | 0.0 0.6 0.6 | 0 6 6 | 40 | 3 7 3 | | 16. | 0.0 0.0 0.0 | 0 0 0 | 0 | 3 9 4 | | 17. | 0.0 0.0 0.0 | 0 0 0 | 0 | 3 9 4 | | 18. | 0.0 0.0 0.0 | 0 0 0 | 0 | 2 9 3 | | 19. | 0.0 0.8 0.8 | 0 10 10 | 120 | 2 12 5 | | 20. | 1.2 0.6 1.8 | 17 9 26 | 129 | 2 6 3 | | 21. | 1.4 1.7 3.0 | 23 22 45 | 469 | 4 10 4 | | 22. | 1.6 2.6 4.2 | 28 36 64 | 629 | 3 18 8 | | 23. | 2.0 1.1 3.1 | 32 18 50 | 593 | 4 10 4 | | 24. | 1.3 1.3 2.6 | 23 21 44 | 594 | 4 11 3 | | 25. | 0.8 1.2 2.0 | 15 20 35 | 440 | 4 14 4 | | 26. | 0.7 1.8 2.5 | 9 27 36 | 318 | 4 17 9 | | 27. | 0.8 1.9 2.7 | 9 27 36 | 184 | 5 13 7 | | 28. | 1.6 2.0 3.6 | 19 26 45 | 271 | 5 16 8 | | 29. | 1.8 1.4 3.2 | 27 25 52 | 669 | 3 13 5 | | 30. | 0.8 0.8 1.6 | 17 16 33 | 634 | 3 16 8 | +------+----------------+-------------------+-------+--------------+ | Mean | 0.7 1.6 2.3 | 11.1 26.4 37.5 | 479 | 4 15 7 | +------+----------------+-------------------+-------+--------------+ | Days | 30 30 30 | 30 30 30 | 30 | | +------+----------------+-------------------+-------+--------------+ Based on 439 observations of 30 stations. Araujo,G. L 80 910 30 Joppich,H. L 60 900 11 Barnes,H. L 76 910 9 Junker,E. L 50 600 11 Beltran,G.V. S2001600 27 Kaczmarek,A. L 80 400 5 Brettel,G. L 901000 13 Kysucka Obs. L2003000 15 Broeckels,G. L1521200 9 Meister,S. L125 800 13 Bronst,M. L102 0 22 Michalovce Obs. L1502250 15 Bruegger,S. L 80 400 20 Moeller,M. S 0 0 30 Chudy,M. L 60 700 10 Rim. Sobota Obs.L1502250 10 Daub,K.-P. L1521200 16 Rockmann,K. L 901200 16 Fritsche,S. L 63 840 14 Rothermel,J. L1001650 9 Hermelingmeier,HL 80 600 7 Ruemmler,F. L 801200 26 Hoerenz,M. L 60 700 18 Seiffert,H.-P. L100 500 11 Holl,M. L 80 400 15 Suzuki,M. L100 0 15 Husar,D. L115 0 4 Tiendesprong ObsL 751200 14 Husar,D. (vis.) L115 0 4 Wallian,D. L120 900 20