Solar and geomagnetic data

Date Measured
solar flux
2.8 GHz
Sunspot number Planetary A index K indices
(3-hour intervals)
Solar wind
speed range
(km/s)
(SOHO)
Number
of flares
Magnetic
(SDO)
NOAA STAR
ap avg
Pots-
dam
WDC
Daily
ap range
Planetary
(WDC)
Boulder C M X
2K 1K
20150729 100.7 185 130 66 5.4 5 4-6 22122121 221*2221 346-421      
20150728 101.1 139 107 56 6.9 7 5-12 22223122 23332312 381-457      
20150727 100.1 124 84 53 9.0 9 6-18 22233222 22443322 431-476      
20150726 97.0 104 57 38 6.3 6 4-9 21121122 22131221 354-443 1    
20150725 94.0 87 54 41 7.0 7 4-9 21221122 21222322 355-453      
20150724 92.2 71 58 54 5.3 5 3-7 21112112 22212322 358-451 3    
20150723 89.4 77 50 27 18.8 19 9-48 34522223 344*2233 350-486      
20150722 89.0 93 46 35 6.5 6 3-15 11122322 12*32322 322-388      
20150721 91.0 71 52 37 7.5 8 3-9 22222122 32332333 305-437      
20150720 93.2 74 47 39 2.8 3 0-5 00111011 11132322 274-315      
20150719 99.4 111 75 46 1.9 2 0-3 00010000 11121222 273-295 1    
20150718 96.0 123 78 52 2.8 3 0-5 01011011 11021311 275-349 1    
20150717 97.4 132 82 40 3.5 4 2-5 11111100 22223322 344-471      
20150716 99.6 133 83 55 6.9 7 4-15 32222221 33332121 437-516      
20150715 101.0 129 90 39 5.8 6 4-9 12112212 12121313 453-591      
20150714 105.2 90 65 39 5.8 6 3-15 31111121 32112232 379-474 2    
20150713 110.1 85 58 44 32.6 33 15-67 35543463 34543432 452-632      
20150712 116.0 139 93 59 12.4 12 9-15 32232333 33233333 509-593      
20150711 120.2 154 100 91 23.0 23 12-32 45443343 55533333 453-629 1    
20150710 129.0 177 121 124 8.0 8 2-39 11000125 11012335 297-502 1    
20150709 121.9 221 120 120 3.9 4 3-6 12111111 13122312 341-371 1    
20150708 128.9 230 173 131 3.9 4 3-5 11111111 12212312 346-405 1    
20150707 132.6 283 218 118 4.4 4 3-7 21111112 31122212 378-463 8    
20150706 133.4 216 145 109 9.9 10 4-22 34311121 35321321 426-522 14 2  
20150705 124.8 224 148 131 22.0 22 9-56 55233233 55233333 405-547      
20150704 116.8 228 151 111 18.8 19 2-56 01013355 12123355 285-558 1    
20150703 112.3 226 162 91 2.1 2 0-3 00101100 00112211 277-302 7 1  
20150702 113.8 184 122 73 2.1 2 2-3 00010000 11112311 297-362 7    
20150701 109.6 139 98 49 4.1 4 0-7 11112210 21122321 347-417 1    
20150630 100.8 95 62 41 5.0 5 2-9 12101122 23312323 347-388 2    

This page is normally updated once a day by Jan Alvestad. Solar wind speed is preliminary. Ap and Kp values in red are based on the definitive Potsdam WDC data. Flare enhanced and erroneous solar flux measurements are replaced by other same day measurements (QC).

[Solar Terrestrial Activity Report]