Provisional sunspot numbers March 2011 +------+----------------+-------------------+-------+--------------+ | | | | | | | Day | Groups | Wolf number | Beck | No. of Obs. | | | | | index | | | | N S Total | N S Total | | N/S T Beck | | | | | | | +------+----------------+-------------------+-------+--------------+ | 01. | 1.5 0.9 2.4 | 35 13 48 | 965 | 10 18 10 | | 02. | 1.6 0.9 2.4 | 34 12 46 | 1060 | 11 21 8 | | 03. | 2.5 0.7 3.2 | 47 8 55 | 755 | 7 18 5 | | 04. | 3.1 0.7 3.8 | 62 11 73 | 1177 | 10 21 9 | | 05. | 2.8 1.1 3.9 | 64 20 84 | 1632 | 9 20 9 | | 06. | 3.4 1.7 5.0 | 70 32 102 | 1857 | 10 25 12 | | 07. | 3.8 1.5 5.3 | 84 28 112 | 2509 | 11 24 12 | | 08. | 3.2 1.8 4.9 | 82 22 104 | 2639 | 10 21 11 | | 09. | 2.5 0.7 3.3 | 68 10 78 | 2402 | 6 17 7 | | 10. | 2.2 0.2 2.4 | 58 3 61 | 1095 | 5 12 4 | | 11. | 2.2 0.0 2.2 | 62 0 62 | 1467 | 7 16 8 | | 12. | 2.3 0.2 2.5 | 59 2 61 | 1203 | 8 17 8 | | 13. | 3.1 0.1 3.2 | 67 1 68 | 1235 | 6 15 8 | | 14. | 2.2 0.2 2.4 | 38 2 40 | 663 | 3 10 6 | | 15. | 2.2 0.0 2.2 | 32 0 32 | 428 | 6 15 6 | | 16. | 1.2 0.9 2.1 | 16 13 29 | 282 | 5 12 6 | | 17. | 1.3 0.6 1.9 | 17 11 28 | - | 1 5 0 | | 18. | 0.2 0.9 1.1 | 3 14 17 | 89 | 3 7 2 | | 19. | 0.9 0.4 1.3 | 19 5 24 | 196 | 9 21 9 | | 20. | 1.3 0.1 1.4 | 22 1 23 | 117 | 11 25 11 | | 21. | 0.8 0.1 0.9 | 17 1 18 | 328 | 10 19 10 | | 22. | 1.4 0.9 2.3 | 21 13 34 | 354 | 11 25 12 | | 23. | 1.2 0.8 2.1 | 14 17 31 | 330 | 10 23 11 | | 24. | 1.4 1.2 2.6 | 17 24 41 | 457 | 11 22 11 | | 25. | 1.7 2.1 3.8 | 20 43 63 | 1056 | 9 19 7 | | 26. | 1.7 2.3 4.0 | 19 49 68 | 1164 | 6 14 7 | | 27. | 2.9 2.8 5.7 | 34 55 89 | 1406 | 9 20 9 | | 28. | 2.6 3.4 5.9 | 36 58 94 | 1420 | 9 23 10 | | 29. | 1.9 2.4 4.3 | 34 38 72 | 1419 | 12 26 13 | | 30. | 1.6 2.2 3.8 | 30 38 68 | 1515 | 10 21 11 | | 31. | 1.6 1.9 3.5 | 28 28 56 | 1004 | 6 13 7 | +------+----------------+-------------------+-------+--------------+ | Mean | 2.0 1.1 3.1 | 39.0 18.5 57.5 | 1074 | 8 18 9 | +------+----------------+-------------------+-------+--------------+ | Days | 31 31 31 | 31 31 31 | 30 | | +------+----------------+-------------------+-------+--------------+ Based on 565 observations of 30 stations. Araujo,G. L 80 910 28 Junker,E. L 50 600 11 Barnes,H. L 76 910 15 Kaczmarek,A. L 80 400 7 Battaiola,R. S 901250 3 Michalovce Obs. L1502250 14 Beltran,G.V. S2001600 25 Moeller,M. L 791000 17 Bretschneider,H.L 63 840 23 Morales,G. S 902000 29 Bruegger,S. L 80 400 20 Noy,J.R. L 801200 16 Bullon,J.M. L1021000 22 Rim. Sobota Obs.L1502250 23 Chudy,M. L 60 700 18 Robeck,G. S2032000 22 Dubois,F. L1252500 26 Ruemmler,F. L 801200 20 Fritsche,S. L 63 840 23 Schott,G.-L. L 80 910 20 Hedewig,R. L 801200 19 Schroeder,G. L 751200 16 Hoerenz,M. L 60 700 16 Suzuki,M. L100 0 30 Holl,M. L 80 400 20 Van Slooten,B. L 901300 22 Hurbanovo Obs. L1502250 24 WFS,Berlin L1502250 15 Joppich,H. L 60 900 9 Willi,X. S2001320 12