Solar and geomagnetic data

Date Measured
solar flux
Sunspot number Planetary A index K indices
(3-hour intervals)
Solar wind
speed range
(km/s)
(SOHO)
Number
of flares
STAR SDO NOAA STAR
ap avg
WDC Daily
ap range
Planetary
(WDC)
Boulder C M X
2K 1K
20121130 110.6 103 75 67 1.0 1 0-3 00010100 10111211 339-363 5    
20121129 113.1 111 64 89 2.4 2 0-5 01010110 01121211 339-375 13    
20121128 114.3 142 104 66 1.4 1 0-4 00000011 01001111 348-466 8 1  
20121127 117.1 169 106 76 3.6 4 2-5 01111111 11112211 389-608 14 2  
20121126 121.8 164 90 81 4.6 5 0-12 32110110 32211111 466-583 12    
20121125 121.6 141 93 64 4.0 4 2-6 12101111 01212211 339-498 3    
20121124 118.0 180 124 87 15.4 15 5-39 54323211 44433211 346-451 1    
20121123 126.7 143 95 85 6.8 7 0-39 00110015 11121114 274-440 4    
20121122 127.7 150 89 93 2.5 2 0-4 10001001 00002211 339-371      
20121121 140.4 164 118 87 7.8 8 3-15 33221121 42331211 349-498 5 2  
20121120 141.2 180 112 119 15.1 15 9-32 33322344 23232333 350-477 8 2  
20121119 133.9 235 142 122 4.5 4 2-7 11212201 11212211 350-444 3    
20121118 141.0 258 158 136 4.5 4 0-9 12111102 12221101 350-451 6    
20121117 135.5 244 158 163 8.6 9 6-15 23222232 12122222 350-455 4    
20121116 138.3 230 168 141 6.6 7 3-12 22111232 12112221 350-453 4    
20121115 141.7 256 140 132 3.4 3 2-5 11110011 11011211 404-518 5    
20121114 142.1 290 179 126 37.1 37 3-94 66644211 56554322 351-527 4 1  
20121113 146.2 244 134 108 18.9 19 9-39 53233334 33233422 346-570 8 3  
20121112 143.8 222 135 188 5.3 5 0-27 10000114 10001313 273-440 7 1  
20121111 133.3 212 143 106 1.8 2 0-5 00001100 11012211 270-342 5 1  
20121110 122.2 169 110 68 2.0 2 0-6 00001012 00001221 270-381 8    
20121109 115.1 121 104 65 0.6 1 0-3 01000000 00001210 341-396 1    
20121108 104.1 120 75 71 2.5 2 0-5 10011001 10011211 362-541   1  
20121107 101.7 137 87 77 14.9 15 5-27 33113443 23112331 338-568      
20121106 98.7 121 84 61 3.8 4 2-7 10111211 00122312 271-335      
20121105 96.6 117 63 47 2.5 2 0-6 00111210 00111211 270-343 1    
20121104 95.0 124 74 46 1.6 2 0-4 01001000 01101110 287-345      
20121103 93.3 75 49 35 2.4 2 0-5 00011110 00002210 273-348      
20121102 96.5 93 61 34 5.3 5 2-9 22101112 22221221 272-441      
20121101 98.4 110 60 48 21.8 22 15-39 33343543 32343422 342-434      
Average 121.0 167.5 106.5 89.6 7.07 7.03  
International sunspot number: 61.4
K factor   0.37 0.58 0.69  

This page is normally updated once a day by Jan Alvestad. Solar wind speed is preliminary. The source for Ap and Kp was changed to Potsdam (WDC) on March 15, 2012. Values in red are based on the definitive WDC data. Flare enhanced and erroneous solar flux measurements are replaced by other same day measurements (QC).

[Solar Terrestrial Activity Report]