Solar and geomagnetic data (last month)

Date Measured
solar flux
Sunspot number Planetary A index K indices (3-hour intervals) Min-max solar wind speed (km/sec) Number of flares (events)
STAR SDO NOAA STAR NOAA Daily ap range Planetary Boulder C M X
20110831 109.0 201 121 2.4 2 0-4 00101101 10102221 324-365 1    
20110830 101.3 167 89 4.0 4 0-6 10012121 21112311 348-431 5    
20110829 101.2 134 66 9.3 9 2-15 30332232 21332222 381-550 4    
20110828 101.0 115 73 5.6 6 4-7 21122122 11222222 350-447      
20110827 103.8 101 63 4.9 5 0-9 20002222 20112211 336-424      
20110826 104.6 144 76 3.1 3 0-7 10011121 00011212 346-425 2    
20110825 104.2 122 97 4.3 4 0-7 20012122 10012221 367-483      
20110824 104.1 120 75 5.9 6 0-15 31012202 32112212 443-560      
20110823 103.7 139 81 9.3 9 0-22 30112243 20213333 339-529      
20110822 108.2 121 82 6.8 7 0-15 20201233 20311122 343-431 1    
20110821 100.9 123 66 3.4 3 0-7 10002121 10012221 338-411 2    
20110820 100.5 101 59 5.0 5 0-15 11002123 11101223 347-383 1    
20110819 98.2 85 46 2.1 2 0-5 00000001 00111211 337-378      
20110818 97.8 80 53 2.8 3 0-6 10001121 10002211 355-408 3    
20110817 97.5 101 44 6.4 6 4-12 31212111 31312121 374-445 4    
20110816 93.0 97 26 7.9 8 6-12 22223122 23322221 404-630      
20110815 90.4 72 13 12.9 13 4-32 43122333 53122323 403-491 2    
20110814 88.1 45 0 9.1 9 5-18 22221223 23221223 325-475      
20110813 83.1 58 35 4.9 5 0-12 12101113 12201123 287-362      
20110812 83.4 51 25 5.1 5 3-9 12121122 12122221 352-379      
20110811 84.2 61 36 5.6 6 4-12 11111123 12212212 354-454 2    
20110810 90.3 109 43 7.0 7 2-18 22321021 22431111 449-557 5    
20110809 97.5 100 54 8.6 9 3-15 33321122 33332122 466-616 5 1 1
20110808 101.5 87 80 10.5 10 6-15 33233222 23233212 451-588 4 1  
20110807 105.4 105 89 7.0 7 3-18 32211112 32211122 444-584 7    
20110806 110.0 139 85 30.8 31 7-80 65443323 65433323 418-714 5    
20110805 109.4 110 94 49.4 49 0-207 32001287 32011257 358-693 6    
20110804 116.3 125 81 4.4 4 0-15 10001213 10101213 305-481 13 1  
20110803 119.9 138 66 2.8 3 0-4 10001111 10012311 317-366 6 3  
20110802 121.6 159 98 3.4 3 0-9 21001101 21111211 356-516 5 1  
20110801 124.9 182 130 8.6 9 3-15 33311213 33212222 501-630 8    

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

[Solar Terrestrial Activity Report]