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
20040630 81.8 31 42 11.9 10 9-17 32333232 33433322 534-569 1    
20040629 85.1 34 50 20.3 20 15-30 44433343 44443334 533-600      
20040628 89.4 49 45 14.4 13 5-24 33122244 24233334 334-538 7    
20040627 97.2 49 48 6.4 5 3-9 21122222 21122212 308-350 5    
20040626 98.9 27 64 8.5 7 2-16 11013333 11123423 307-423 2    
20040625 102.9 50 83 5.3 4 2-12 00012231 11012121 286-364 1    
20040624 108.3 67 94 6.8 6 4-12 21312221 12311111 300-350 2    
20040623 112.5 101 104 6.4 5 2-16 10112322 11112212 298-347 2    
20040622 116.7 112 113 4.8 4 2-7 11012221 11011021 310-348 1    
20040621 115.8 126 139 5.3 4 4-8 12122111 11213112 347-386 1    
20040620 119.1 171 142 4.4 3 3-6 11112211 11112111 378-429 2    
20040619 112.7 144 90 6.6 5 3-8 22222221 23222220 406-464 7    
20040618 107.8 86 118 9.4 8 5-14 12232322 22233333 435-521 2    
20040617 111.3 113 107 8.1 7 3-11 13222232 22232232 454-567 1    
20040616 111.5 95 113 7.5 7 4-15 22322211 22422222 468-580 1    
20040615 109.4 87 87 16.8 16 5-36 21534333 32434432 399-586 1    
20040614 99.9 66 77 11.5 11 4-22 21334332 31333432 306-520 2    
20040613 95.2 58 55 5.1 4 3-8 10112222 21213323 294-369 1 1  
20040612 88.0 49 28 7.9 7 5-13 12313222 22322211 297-393 2    
20040611 83.4 26 45 10.8 10 8-15 32332322 22331223 357-448      
20040610 82.5 39 50 12.0 11 6-17 33223333 33212123 392-528      
20040609 85.2 52 73 14.9 14 12-21 33343333 33343233 420-470      
20040608 86.0 38 72 9.5 9 3-15 32132321 32132232 375-450      
20040607 88.5 76 82 9.4 8 6-17 31223223 22222223 410-481 1    
20040606 88.4 51 60 12.5 11 6-23 34333232 33332332 458-526      
20040605 84.5 43 59 11.5 11 3-17 33133333 33121223 421-478      
20040604 89.4 59 55 11.8 11 8-17 33233323 33233223 426-505      
20040603 90.0 53 77 9.4 8 5-13 33312222 33223322 461-546      
20040602 90.4 61 63 11.8 11 9-15 32233233 33334433 465-565      
20040601 90.0 68 76 17.0 16 12-22 33433333 43434333 496-586      

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

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