Solar and geomagnetic data (last month)

Date Solar flux at Earth 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
20070531 74.6 0 11 3.5 4 0-12 10001113 20012122 277-348 1    
20070530 70.3 11 12 3.8 4 0-6 21101111 21211211 337-413 1    
20070529 69.6 11 11 4.4 4 2-6 11101211 12111221 354-410      
20070528 68.7 13 0 4.9 5 0-12 32111001 22111011 451-601      
20070527 67.0 0 0 11.9 12 6-18 33332222 33442222 579-699      
20070526 67.7 0 0 16.1 16 9-27 44333332 44343322 572-717      
20070525 68.1 0 0 15.8 16 7-27 24433342 24433332 577-725      
20070524 69.9 0 0 28.3 28 7-67 65423444 55433323 559-667      
20070523 70.1 22 12 42.0 42 9-80 43565265 44564345 416-561      
20070522 72.0 24 14 10.8 11 4-27 13122343 21232333 377-453      
20070521 73.2 14 15 5.6 6 0-15 31001123 32001113 381-529      
20070520 74.1 24 23 6.5 6 4-15 32111112 32121122 477-639      
20070519 74.8 32 44 11.5 12 7-15 23322333 23332323 466-660      
20070518 75.8 53 45 17.8 18 9-27 32444333 22443332 298-645      
20070517 76.5 49 30 6.3 6 3-15 12111123 12212122 284-305      
20070516 77.1 55 56 3.9 4 3-6 11111112 01102321 288-343 1    
20070515 76.9 36 37 5.6 6 4-9 11112222 01212222 287-340 1    
20070514 72.9 33 29 2.9 3 0-6 00001121 20111221 281-302      
20070513 73.5 30 18 2.9 3 0-6 12101011 12111112 277-348      
20070512 71.4 17 21 2.4 2 0-5 11000001 11011100 317-367      
20070511 71.5 24 24 2.3 2 0-5 00001111 10112111 352-442      
20070510 71.2 27 20 2.8 3 0-6 10001112 10011221 421-470      
20070509 72.1 17 18 5.1 5 4-6 12211111 22322122 446-593      
20070508 73.4 15 12 13.6 14 6-32 24422233 25433322 532-634      
20070507 75.7 12 12 18.5 18 4-55 11323544 22333533 274-582      
20070506 78.1 13 14 2.1 2 0-4 10000111 00010211 271-286 1    
20070505 81.0 14 18 3.0 3 2-5 10110001 10112111 278-311 1    
20070504 82.5 20 19 2.3 2 0-5 10010010 10012211 285-335      
20070503 83.1 18 33 4.4 4 2-7 10211121 10211222 293-351      
20070502 87.4 28 33 2.9 3 0-5 11000101 11001002 336-469 1    
20070501 86.3 36 32 8.5 8 3-15 33311222 23411212 449-531      

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

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