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
20121031 104.2 79 59 35 4.8 5 0-15 00001322 00112422 272-380 2    
20121030 106.3 100 71 56 1.8 2 0-6 20000000 00001110 275-298      
20121029 108.4 129 76 75 1.9 2 0-4 00100001 01211210 273-355      
20121028 117.0 143 91 55 2.6 3 0-6 01211010 00222210 284-378 1    
20121027 121.7 133 83 59 3.4 3 2-6 21111001 12211211 288-396 1    
20121026 130.7 124 65 71 4.0 4 2-6 00211212 10212321 294-371 8    
20121025 130.0 149 91 58 3.0 3 0-5 11011001 11212211 311-374 2    
20121024 135.6 148 86 78 3.3 3 0-7 12111010 13221210 343-354 9    
20121023 141.6 154 94 84 6.6 7 4-9 22222221 23222322 345-373 6   1
20121022 155.5 183 139 86 2.3 2 0-5 11000110 10001210 345-390 6 1  
20121021 144.2 221 159 75 3.0 3 2-4 11111110 00011210 303-381 9 1  
20121020 151.4 208 102 112 1.6 2 0-3 00000010 00002220 323-416 3 1  
20121019 141.4 225 118 110 2.8 3 0-9 21000000 20002220 372-543 5    
20121018 137.6 225 146 112 5.0 5 3-12 31111211 21012321 479-704 1    
20121017 135.0 231 132 100 6.9 7 3-12 32211113 23212312 401-561 6    
20121016 137.0 189 119 107 5.3 5 4-9 11211211 12312211 336-499 2    
20121015 136.8 224 129 119 8.6 9 3-22 43222121 33322221 379-537 5    
20121014 132.1 194 125 97 21.4 21 12-32 43344334 53443222 466-570 6    
20121013 125.3 131 86 85 47.1 47 18-67 35656644 35555553 431-578 1    
20121012 121.9 152 77 89 12.8 13 5-27 34222331 34322331 450-614 5    
20121011 116.6 119 79 82 6.1 6 3-12 32112112 21113212 442-552 5    
20121010 112.0 128 88 71 10.9 11 7-18 32222332 32323332 454-610 9 1  
20121009 106.2 120 90 63 45.8 46 6-111 76642235 66652335 308-590 10 1  
20121008 103.4 98 74 41 40.3 40 9-94 34664254 34764233 294-398 5 1  
20121007 98.1 73 51 37 4.9 5 2-12 12110023 02122212 282-345 1    
20121006 98.8 82 50 39 6.3 6 4-9 21112212 21223211 288-343      
20121005 106.2 84 51 55 3.6 4 0-9 00011212 00012312 284-331      
20121004 109.5 91 67 56 1.3 1 0-3 10010000 01111200 275-324      
20121003 111.7 119 72 58 5.3 5 3-12 32111111 32211310 276-352      
20121002 118.2 155 69 68 5.0 5 0-9 20022212 20022322 272-348 3    
20121001 128.1 187 125 59 31.9 32 4-111 76422111 66423222 315-394 13    
Average 123.3 148.3 92.4 73.9 9.97 10.00  
International sunspot number: 53.3
K factor   0.36 0.58 0.72  

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]