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
20171210 72.0 12 12 11 2.3 2 0-5 00100101 00101121 290-346      
20171209 71.1 14 13 0 3.0 3 0-5 10011110 00012211 313-382      
20171208 69.9 0 0 0 4.9 5 3-7 11212111 11212011 354-444      
20171207 67.9 11 0 11 9.1 9 5-15 22213322 13213322 432-484      
20171206 68.3 14 13 13 13.1 13 7-22 34323332 44432322 456-484      
20171205 67.9 13 12 0 24.4 24 15-48 33445433 32444433 390-582      
20171204 68.4 0 0 0 8.6 9 0-22 00212334 00223432 284-350      
20171203 69.0 0 0 0 0.9 1 0-3 00000001 00011111 302-347      
20171202 71.5 0 0 0 2.5 2 0-7 10000211 00101210 347-418      
20171201 70.2 0 0 0 6.0 6 3-12 13111221 03212221 409-481      
20171130 71.7 11 11 11 9.4 9 4-22 24112312 23112222 406-474      
20171129 72.6 15 12 12 3.8 4 0-6 11110112 11210112 362-426      
20171128 71.9 40 25 14 5.1 5 3-12 32111111 32222111 357-447      
20171127 73.6 18 13 15 4.0 4 2-6 11102111 11112211 286-429      
20171126 75.5 27 21 15 2.1 2 0-4 00100011 01102121 276-300      
20171125 74.3 25 17 13 5.3 5 0-18 32110110 32211110 278-412      
20171124 74.1 20 14 0 8.0 8 2-18 32100133 22311132 320-425      
20171123 72.4 27 23 0 7.1 7 4-12 21232222 21342212 350-452      
20171122 73.4 29 22 0 8.9 9 6-15 23223222 32222222 420-546      
20171121 73.2 38 23 0 23.0 23 9-32 44432444 35533323 400-584      
20171120 73.6 19 13 0 4.8 5 0-15 10001223 00001233 334-426      
20171119 74.4 26 23 0 4.1 4 3-9 11220011 12321111 345-368      
20171118 76.1 49 29 14 5.6 6 4-7 21222112 12332212 348-454      
20171117 76.4 40 27 26 4.4 4 0-9 12121011 13232111 406-453      
20171116 73.2 36 27 15 12.1 12 3-27 44321123 44331212 450-541      
20171115 74.2 32 15 14 11.1 11 7-18 23332322 23443332 351-528      
20171114 74.4 23 17 14 11.3 11 5-15 33312323 33423312 352-411      
20171113 72.1 14 12 0 5.5 6 2-9 12121210 23232210 354-448      
20171112 69.4 0 0 0 5.0 5 3-9 12111122 12122112 414-558      
20171111 67.3 0 0 0 6.9 7 3-15 32221111 22321211 459-570      

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]