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
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 10.9 11 6-18 22332322 23443332 351-528      
20171114 74.4 23 17 14 9.1 9 4-15 33311223 33423312 352-411      
20171113 72.1 14 12 0 5.0 5 3-9 12121211 23232210 354-448      
20171112 69.4 0 0 0 4.9 5 3-9 21111112 12122112 414-558      
20171111 67.3 0 0 0 7.0 7 4-15 32222111 22321211 459-570      
20171110 68.6 0 0 0 18.5 18 12-22 33444433 34433422 485-711      
20171109 65.8 0 0 0 16.8 17 9-22 33233434 43333333 464-571      
20171108 67.6 0 0 0 38.1 38 18-67 56345435 66355424 557-705      
20171107 68.3 0 0 0 30.9 31 5-67 13344466 13543456 277-661      
20171106 69.4 24 12 0 0.6 1 0-3 10000000 00000111 271-361      
20171105 71.1 0 0 0 1.4 1 0-3 10000011 10000210 339-405      
20171104 72.1 0 0 0 2.9 3 2-4 11101001 11001001 365-458      
20171103 73.2 0 0 0 8.1 8 2-18 32222011 31223111 377-455      
20171102 73.6 0 0 0 6.3 6 4-12 22111113 32121214 282-446      
20171101 72.6 0 0 0 2.3 2 0-4 10001011 20111211 270-335      
20171031 75.4 40 11 11 1.6 2 0-6 10002000 00112210 270-274      
20171030 75.6 41 22 22 1.8 2 0-4 11000001 11100100 270-324      
20171029 75.3 51 38 23 2.6 3 0-6 12001010 13011210 295-348      
20171028 75.4 42 25 22 4.8 5 3-7 12121111 12331211 346-413      
20171027 76.0 41 30 23 4.0 4 0-7 21110011 22121221 400-467      
20171026 77.3 29 23 23 16.8 17 5-32 32434431 42453321 460-561      
20171025 78.8 32 26 24 19.0 19 9-39 44532233 35443233 553-618      
20171024 77.5 28 24 23 18.4 18 3-39 21234525 12233324 345-684      

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]