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
20170723 70.6 15 12 0 11.3 11 7-22 32232224 33443223 468-591      
20170722 69.5 12 12 0 12.4 12 6-27 32442222 23452323 482-627      
20170721 69.4 0 0 0 13.0 13 5-27 43212323 44323423 458-701      
20170720 70.2 46 0 0 6.1 6 3-12 11111233 11122323 349-478      
20170719 73.1 0 0 0 3.0 3 2-4 01010111 11122321 348-504 1    
20170718 78.2 11 0 0 5.6 6 2-12 23111101 33212211 417-650 6    
20170717 85.6 13 13 13 22.5 22 5-56 34444512 35544422 387-584 2    
20170716 86.5 58 16 26 42.8 43 6-80 22456565 22555445 285-587 5    
20170715 88.0 60 47 34 3.0 3 2-4 11100111 11211311 281-335 5    
20170714 89.0 84 59 58 2.3 2 2-3 00001101 11111311 324-353 4 1  
20170713 92.3 88 62 55 3.1 3 2-5 11001111 1111**11 343-383 4    
20170712 90.2 95 51 43 3.5 4 3-5 11111111 11011222 387-472      
20170711 91.1 83 57 27 6.4 7 4-9 22212211 24412312 463-647 1    
20170710 95.1 59 30 32 8.3 8 3-22 34211112 34110323 436-587 1    
20170709 90.9 85 48 31 24.1 24 7-56 53252343 ******** 346-543 5 1  
20170708 86.6 63 45 24 2.5 3 2-4 10010000 1011111* 277-348 1    
20170707 79.5 37 25 25 4.0 4 2-7 21001111 22112311 289-399 1    
20170706 75.9 29 21 16 5.9 6 3-15 11112213 11221223 277-352      
20170705 73.0 25 14 11 1.6 2 0-3 00000001 11012111 277-315      
20170704 71.8 25 22 0 3.6 4 2-6 11100012 11111222 284-362 1    
20170703 71.7 0 0 0 4.9 5 3-6 22111112 23221211 351-445   1  
20170702 71.2 11 11 11 17.4 17 6-32 33443233 33332234 318-514      
20170701 70.7 35 22 11 11.8 12 6-18 13323332 24323332 327-441      
20170630 71.5 35 33 11 3.0 3 0-6 00111112 11112212 316-344      
20170629 71.8 13 12 12 4.1 4 2-7 02221111 12331212 335-430      
20170628 72.1 16 13 13 3.4 3 0-6 12111000 12221321 351-462      
20170627 74.1 45 21 17 4.1 4 3-6 21111111 12113211 400-540      
20170626 73.7 34 23 19 6.1 6 3-9 22122221 32232332 444-539      
20170625 73.7 51 37 20 8.8 9 6-18 22322222 33422332 377-480      
20170624 74.1 27 20 28 8.5 8 5-12 11232233 12332323 334-393      

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]