Solar and geomagnetic data (last month)

Date Solar flux Sunspot number Planetary A index K indices (3-hour intervals) Min-max solar wind speed (km/sec) Number of flares (events)
STAR SEC STAR SEC Daily low - high Planetary Boulder C M X
20040831 88.1 0 11 28.5 28 13-65 64543343 64443433 363-548   1  
20040830 89.9 27 30 35.0 34 10-54 32555445 32444435 345-439 3    
20040829 86.1 11 36 9.1 8 2-13 22022333 22122222 362-461      
20040828 87.2 24 28 11.9 12 8-21 23433332 23432322 366-461      
20040827 90.5 34 33 8.8 8 4-14 31122323 21212222 377-510      
20040826 97.5 40 44 7.9 7 3-12 21112333 21113332 318-518 1    
20040825 100.4 58 60 7.6 7 4-11 12123222 02222321 296-363 1    
20040824 104.9 57 55 6.1 5 3-9 21112222 20223321 300-462      
20040823 109.5 70 93 7.9 7 6-11 22222322 23223322 362-452      
20040822 115.2 114 102 14.5 13 10-24 33443322 33533322 438-548      
20040821 120.0 94 88 18.3 17 12-31 34433333 44543323 376-546      
20040820 121.4 95 85 14.6 14 11-20 33343333 33333433 344-444 2    
20040819 120.6 67 60 7.8 7 2-13 31022322 21012222 325-368 9 2  
20040818 128.3 66 53 13.6 13 9-18 32333333 32312323 315-364 18   1
20040817 135.0 73 63 11.9 11 3-20 31123343 32113323 302-368 15 4  
20040816 133.6 108 68 9.5 8 4-15 21123323 11213322 290-356 12 2  
20040815 138.8 97 98 7.5 7 4-12 21122322 20102311 335-428 8 5  
20040814 149.2 142 111 10.3 9 4-13 31233322 21222322 384-446 7 8  
20040813 148.6 117 160 9.4 9 5-17 22213233 22122323 363-495 13 5 1
20040812 147.2 155 140 10.8 9 7-15 32223323 33213323 466-553 12 1  
20040811 130.8 126 115 13.4 13 8-21 22343333 32333332 476-706 20    
20040810 121.4 132 93 14.9 14 5-23 41223433 41223543 382-679 4    
20040809 113.9 106 101 14.4 13 6-28 22432334 22432333 345-409 14    
20040808 104.8 77 77 6.5 5 3-9 22102222 12112221 363-535 2    
20040807 94.6 67 71 21.1 20 9-51 33544323 33544222 323-510      
20040806 91.0 69 52 8.4 7 3-15 31112233 22111123 308-358      
20040805 88.9 57 36 8.0 7 2-17 11022233 02112222 275-365      
20040804 85.4 39 62 5.1 4 2-8 10012221 21103202 289-352      
20040803 87.6 77 52 6.3 5 3-10 22112212 23101002 345-418      
20040802 84.5 50 39 10.4 8 5-16 21332223 33442333 391-456 1    
20040801 83.4 39 40 8.8 8 3-17 32112322 43112323 432-557      

This page is normally updated once a day by Jan Alvestad. All values are preliminary.

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