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
20141231 133.6 186 138 94 7.6 8 5-18 12122312 13113322 459-565 6    
20141230 130.4 203 150 102 14.9 15 7-27 34423332 34523322 549-706 4    
20141229 131.5 219 159 113 20.9 21 7-39 23234535 12134434 440-630 2    
20141228 132.6 206 150 108 8.5 9 5-22 22111242 12222342 350-447 5    
20141227 134.1 215 162 111 6.3 6 2-18 32122100 21222322 357-466 2 1  
20141226 137.0 243 164 92 16.8 17 6-39 44222253 34322233 394-482 11    
20141225 145.3 207 148 100 10.9 11 3-22 22113334 22113333 411-507 6    
20141224 151.4 193 132 86 15.4 15 7-27 42224333 33324323 426-556 8    
20141223 165.9 272 190 128 11.1 11 0-27 10142234 10042324 313-604 10    
20141222 179.2 234 184 113 19.5 19 4-48 55321311 43332322 337-459 7 1  
20141221 205.8 268 174 159 12.4 12 7-22 33223234 23333233 316-446 7 2  
20141220 203.2 325 191 120 7.0 7 3-12 32212212 32223222 351-369 10   1
20141219 215.7 317 212 156 7.4 7 4-12 32211222 21332322 352-423 11 1  
20141218 213.2 267 186 168 5.1 5 3-9 11111212 11113342 431-452 8 1  
20141217 198.5 264 188 154 5.8 6 3-12 32111111 22212221 465-537 6 5  
20141216 184.6 293 168 169 6.5 6 4-12 11113222 11233323 317-445 13    
20141215 169.3 310 209 152 13.9 14 6-18 23333333 12343323 505-608 11    
20141214 166.4 313 175 175 10.0 10 6-18 23222332 22233331 471-581 16 1  
20141213 159.8 290 181 121 8.0 8 4-12 22113223 221***** 370-432 7 1  
20141212 154.2 262 143 132 18.4 18 12-32 33334343 23325432 453-540 9    
20141211 147.5 218 186 115 4.0 4 0-9 10101112 10111222 496-691 9    
20141210 149.8 231 163 97 7.8 8 3-18 32221111 21232211 449-546 9    
20141209 139.7 174 143 80 14.4 14 9-22 42223243 43332233 509-718 12    
20141208 132.6 164 100 77 14.3 14 9-27 33223433 43223432 567-763 3    
20141207 131.8 170 119 58 25.4 25 9-39 52335444 42335442 751-779 6    
20141206 128.7 166 103 73 11.1 11 6-22 22222244 12332234 418-759 7    
20141205 136.8 215 125 97 10.1 10 4-18 33223212 23233221 436-475 7 1  
20141204 151.9 212 158 137 8.6 9 3-22 22112324 22212333 455-556 7 3  
20141203 154.2 260 156 128 7.0 7 3-12 32111232 32121232 409-568 10    
20141202 167.7 282 178 146 11.0 11 5-15 33313231 22323232 446-603 14    
20141201 168.1 287 191 160 9.0 9 5-22 22211224 22222334 387-595 4 1  
Average 158.7 240.8 162.1 120.0 11.24 11.16  
International sunspot number (SILSO-WDC): 78.0
K factor   0.32 0.48 0.65  

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]