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
20160924 84.9 77 48 47 3.4 3 2-7 00011012 11112212 343-364      
20160923 85.5 87 62 49 2.9 3 2-5 01100001 01211211 345-447      
20160922 85.1 96 71 30 2.8 3 0-7 21000000 11211100 409-511 5    
20160921 85.5 80 68 35 8.0 8 0-27 42231011 42232212 451-564 2    
20160920 84.5 79 66 32 16.4 16 6-32 44342222 54442212 565-769      
20160919 82.6 80 61 56 7.8 8 3-15 11222213 11332323 316-600      
20160918 83.0 67 56 47 5.9 6 4-9 21122211 11232211 282-353      
20160917 80.3 55 27 14 2.5 2 0-6 10020001 21122211 271-344      
20160916 83.7 42 25 13 2.0 2 0-5 00000111 00011211 270-332      
20160915 84.4 41 14 12 5.6 6 3-12 32211112 33322212 273-339      
20160914 85.2 54 47 24 7.5 8 5-15 11122232 22223222 273-370      
20160913 86.0 48 41 27 4.0 4 3-6 21111111 22132211 270-283      
20160912 86.5 69 56 57 4.4 4 2-7 22112011 22122221 270-362      
20160911 86.4 91 65 63 3.3 3 2-4 10111111 11222211 329-383      
20160910 93.0 111 92 66 3.1 3 0-6 11110002 12212211 345-466      
20160909 91.0 98 75 65 3.4 3 0-7 20001112 20102312 350-463      
20160908 94.5 117 89 49 11.5 12 6-22 34322222 34443322 433-543      
20160907 93.0 103 77 50 11.5 12 5-18 33123312 34233422 448-533      
20160906 92.4 116 87 32 13.3 13 9-22 33323242 34323232 456-576      
20160905 93.8 67 46 22 17.1 17 5-39 33321353 35332432 501-674      
20160904 97.4 60 53 59 25.3 25 18-32 43444444 54434443 563-770      
20160903 99.0 76 63 46 36.3 36 22-67 46544544 45443434 585-760      
20160902 94.6 112 89 50 36.9 37 12-80 65335435 66344323 555-739      
20160901 95.2 113 89 66 27.9 28 15-48 44434355 34543345 406-651      
20160831 97.5 118 85 91 5.8 6 3-12 21111133 21112333 372-448 2    
20160830 100.4 130 94 64 17.1 17 6-32 32223444 33324443 337-442 4    
20160829 87.8 105 80 67 5.9 6 0-15 10012223 11023222 306-346 3    
20160828 85.4 90 74 64 2.4 2 2-4 00011000 01112221 341-370 1    
20160827 83.9 81 61 52 4.4 4 0-9 22121110 23022220 359-427      
20160826 81.9 96 75 44 5.8 6 2-12 31011222 32012222 384-485      
20160825 78.7 55 46 39 10.3 10 5-18 21232333 21332313 449-552      

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]