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
20150419 151.7 342 223 142 6.6 7 4-12 32111122 33112323 365-462 3    
20150418 147.6 308 234 114 9.0 9 7-18 22222232 22333322 450-568 3    
20150417 149.6 361 225 93 20.4 20 6-48 55433232 45433332 566-771 7    
20150416 150.2 279 197 85 39.8 40 18-80 55443456 45444435 542-787 15    
20150415 154.7 243 165 85 25.0 25 9-56 23255353 22335443 309-695 5    
20150414 146.8 229 151 97 11.5 12 2-27 01113434 01123533 272-421 5    
20150413 141.3 249 191 68 6.1 6 3-12 32211211 33322321 273-427 13    
20150412 133.9 161 134 64 3.0 3 2-4 01101111 11112221 338-393 16 1  
20150411 122.9 172 126 74 16.1 16 6-27 44332322 34453332 345-439 8    
20150410 115.1 215 138 34 28.9 29 7-48 55544332 455433** 348-480 5    
20150409 111.3 169 112 37 9.6 10 6-15 23232223 22233323 340-424 5    
20150408 106.0 187 131 40 2.6 3 0-5 11000111 11002312 331-369 1 1  
20150407 111.2 162 106 39 3.3 3 0-9 22000011 2*103321 349-470 1    
20150406 117.2 178 120 78 4.4 4 2-7 22101011 23113221 445-551 4    
20150405 122.2 200 137 66 5.9 6 3-12 22111113 22112223 462-569 2    
20150404 122.4 190 103 68 9.8 10 5-18 32222332 32123222 462-565 3    
20150403 119.9 174 105 29 10.1 10 7-18 33222223 32333323 447-596 1    
20150402 121.3 169 77 31 11.3 11 4-27 12222244 22323434 387-470 2    
20150401 124.1 152 108 69 6.1 6 4-12 11211322 11222522 347-509 1    
20150331 128.1 219 116 53 9.0 9 2-15 01223332 11233322 298-533 1    
20150330 133.6 183 138 56 4.0 4 2-7 22110012 21112311 277-360 5    
20150329 144.5 187 143 73 10.9 11 6-27 43222222 33422422 344-466 14    
20150328 145.6 230 159 87 8.0 8 0-18 02322223 01422323 346-519 15    
20150327 137.8 240 157 109 7.6 8 4-15 32212111 22213212 349-454 5    
20150326 136.1 244 174 103 7.6 8 3-15 21212223 21213323 356-547 4    
20150325 137.8 216 147 115 13.1 13 7-22 22334332 22343232 461-607 10    
20150324 133.0 221 163 127 9.8 10 5-22 21123422 11223322 463-573 2    
20150323 128.1 244 176 119 18.6 19 9-32 44234334 45233323 527-710 3    
20150322 122.4 200 147 88 23.8 22 4-94 23653111 24544212 549-759 2    
20150321 113.6 161 134 40 11.9 12 5-27 43332221 43332222 553-754 2    
20150320 112.7 131 80 27 22.4 22 9-39 53533234 42542334 541-672 1    

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]