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
20170226 79.0 60 41 35 2.0 2 0-3 11000000 00001201 348-469      
20170225 80.0 59 49 25 5.6 6 2-12 32210002 23222211 445-559      
20170224 82.1 55 48 27 17.0 17 6-32 43344323 44353212 550-702 1    
20170223 83.3 45 39 18 9.4 9 6-15 22222323 22223322 358-669 1    
20170222 83.2 50 42 17 8.3 8 3-18 33221111 23331311 351-409 1    
20170221 82.5 41 30 19 3.5 4 0-7 12100002 13101212 368-455      
20170220 80.7 38 28 25 7.9 8 3-15 13222223 13211222 441-526      
20170219 78.1 28 24 23 8.9 9 3-15 33211231 34211220 478-551      
20170218 76.6 25 22 13 13.9 14 4-27 44221233 35222333 454-540      
20170217 74.6 19 16 14 16.9 17 7-27 23442334 14443324 418-502      
20170216 74.0 23 11 23 7.1 7 3-15 11212322 12203321 282-413      
20170215 74.8 28 24 23 2.5 2 0-5 00111111 00211210 277-316      
20170214 74.5 14 11 15 1.0 1 0-3 00000011 00000111 281-302      
20170213 74.8 20 17 16 4.9 5 2-9 21010221 11011211 285-349      
20170212 76.2 21 18 18 2.8 3 0-6 10000120 00111211 309-398      
20170211 75.7 25 18 17 3.6 4 0-12 31110010 22111211 341-408      
20170210 74.0 22 18 18 6.9 7 4-9 21212212 21222212 369-436      
20170209 73.4 21 16 15 6.4 6 4-9 21121222 11122222 373-448 3    
20170208 73.1 47 27 0 4.0 4 0-6 10112211 10122211 406-461      
20170207 72.1 24 12 11 7.4 7 4-12 32113221 22122221 449-533      
20170206 72.5 17 14 15 12.5 12 6-22 33223324 32222223 462-606      
20170205 72.6 33 22 22 14.8 15 7-22 34323342 34323332 453-619      
20170204 74.0 12 12 22 9.6 10 7-18 23322222 23332322 454-610      
20170203 75.1 31 25 39 18.0 18 9-32 34423333 33533322 564-647      
20170202 75.3 56 42 40 21.0 21 12-32 34433444 44442433 572-722      
20170201 76.0 59 52 28 28.0 28 15-48 43334535 43434434 568-747      
20170131 76.0 73 64 42 22.4 22 12-39 33333454 22342434 423-744      
20170130 77.0 107 75 35 5.9 6 2-12 01112213 01122212 368-521      
20170129 76.6 51 37 24 6.5 6 2-12 32212210 22112211 387-461      
20170128 78.5 47 38 28 9.0 9 3-18 33211123 33101012 450-554 1    
20170127 80.3 59 39 33 20.5 20 5-32 44444312 34533321 509-642      

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]