Solar and geomagnetic data

Date Solar flux density
2.8 GHz
Sunspot number Planetary A index
(3)
K indices
(3-hour intervals) (3)
Solar wind
speed range
(km/s)
(SOHO)(2)
Number
of flares
DRAO (4) Almaty (1)
(averages)
STAR
(SDO)
NOAA STAR
ap avg
Pots-
dam
WDC
Daily
ap range
Planetary
(WDC)
Boulder Andenes
(Tromsų)
C M X
Measured
(20h UT)
(02-11 UT) 2K 1K
  1AU
20230228 160.9     214 125 100 25.8 26 5-67 65332144 ******** 56332256 561-826 14 1  
20230227 161.2     288 188 142 91.1 91 48-111 56776766 ******** 66655666 568-941 12    
20230226 159.0     242 173 120 24.5 24 6-67 32333256 ******** 44423346 412-761 13    
20230225 152.4     330 201 129 9.5 10 2-18 10222333 ******** 10222453 348-449 11 2  
20230224 164.1     255 172 130 4.5 5 0-9 21212100 ******** 22222000 371-685 13 2  
20230223 148.2     280 178 108 20.0 20 12-32 44333434 ******** 56323555 529-692 20 3  
20230222 151.9     216 145 100 6.0 6 2-9 10122222 ******** 40112254 372-507 25 2  
20230221 160.9     259 149 106 14.4 14 4-27 33344211 ******** 53244213 369-443 14 3  
20230220 159.8 165.2 161.4 232 165 135 7.0 7 2-15 10232222 ******** 00122343 315-486 25 1  
20230219 169.0 166.4 162.6 292 194 112 5.8 6 3-12 31112111 ******** 51213233 319-424 21    
20230218 167.2     285 181 109 5.6 6 3-9 12112122 ******** 02111025 370-450 9    
20230217 165.1 163.1 159.2 245 180 86 5.6 6 0-15 23211110 ******** 23211020 401-590 8   1
20230216 163.2 175.4 171.2 223 144 101 22.6 23 5-48 33544411 ******** 33444433 325-617 15 1  
20230215 173.7 171.2 167.0 326 216 140 27.1 27 12-56 34543434 ******** 33443445 321-376 26 4  
20230214 179.7 180.3 175.8 329 245 206 5.8 6 2-9 20221112 ******** 10221224 324-400 20 2  
20230213 189.2 200.5 195.4 394 237 185 3.6 4 0-7 10112111 011121** 20001032 327-400 26 2  
20230212 199.7 210.2 204.8 397 246 197 6.8 7 6-9 22222222 12322222 33222244 385-488 18 4  
20230211 209.5 208.5 203.1 451 302 209 8.5 8 2-18 33222110 33233311 43322012 446-548 19 7 1
20230210 207.8     396 268 190 15.3 15 7-27 43233234 32323333 54333255 425-537 16 5  
20230209 214.6 212.3 206.6 375 263 150 18.3 18 9-32 34332334 24234333 45422356 417-602 18 8  
20230208 197.6 183.5 178.5 373 227 142 17.3 17 15-27 33343333 33344422 44333354 467-644 20 5  
20230207 184.7 159.5 155.1 349 215 110 18.5 18 12-27 44343333 33243322 65333454 456-655 27 4  
20230206 156.7 145.2 141.2 321 215 139 16.0 16 9-22 33333244 33343332 43333256 358-526 18    
20230205 144.0 137.9 134.0 297 181 79 4.4 4 2-7 02011121 02021221 12000032 320-381 7    
20230204 139.0 153.0 148.6 238 157 66 5.0 5 0-12 33101101 23111211 53100101 307-367 7    
20230203 134.5 142.8 138.7 197 134 74 7.0 7 2-15 22002332 21012422 23001342 323-387 5    
20230202 134.9 131.2 127.4 211 135 56 4.5 4 0-18 32010001 21010111 53000023 313-473 2    
20230201 133.5 136.7 132.7 201 110 89 5.1 5 2-12 11001132 11112322 21000145 326-444 9    
Average 167.2     293.4 190.9 125.4 14.48 14.43
International sunspot number (SILSO-WDC): 110.9
K factor       0.38 0.58 0.88  

1) Data obtained courtesy of the Institute of Ionosphere, Kazakhstan
2) Solar wind speed is preliminary (* on days with none or too few measurements from SOHO-CELIAS/MTOF PM, measurements from DSCOVR are used)
3) Ap and Kp values in red are based on the definitive Potsdam WDC data.
4) Flare enhanced measurements and measurements that most likely are invalid are replaced by other same day measurements ## (continuous QC process). Solar flux measurements that may be invalid are temporarily marked ** , while interpolated values are marked # .

This page is normally updated once a day by Jan Alvestad.

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