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
20230129 137.0     247 148 80 4.5 4 2-7 10211212 01212221 01100214 449-501 5    
20230128 137.6 143.5 139.2 250 135 76 9.5 10 4-15 33213231 22223322 54312254 453-566 6    
20230127 144.9 150.0 145.4 221 115 84 7.5 8 2-12 10223322 01333322 11023315 454-630 11    
20230126 150.6 174.7 169.3 231 135 104 10.1 10 4-15 13323321 12333331 33222231 398-575 24 1  
20230125 171.8 175.4 170.0 260 177 140 5.6 6 2-12 00123211 00133222 00003313 375-468 21 3  
20230124 180.2 191.8 185.8 260 208 127 3.8 4 2-6 11121110 11122321 31111000 374-461 16    
20230123 189.1 194.2 188.2 350 250 144 6.3 6 3-12 12113212 0210322* 11003435 371-547 24    
20230122 198.6 208.0 201.4 400 247 166 8.4 8 5-18 21222232 12233331 41212352 372-465 21 2  
20230121 208.7 214.8 208.0 440 278 194 15.9 16 7-32 34422333 23322441 34423454 409-532 20    
20230120 217.5 223.1 216.0 430 276 197 4.9 5 0-19 11012211 11112322 31001422 350-541 17    
20230119 226.1 217.9 211.0 539 300 166 6.3 6 0-15 01332011 12323221 01221013 349-501 15 3  
20230118 220.3 222.3 215.2 401 258 164 14.4 14 2-32 44332220 33333331 55222312 346-600 20 1  
20230117 221.7 225.9 218.6 395 272 185 5.1 5 0-18 02211003 02212223 01211105 347-465 16 1  
20230116 228.1 234.1 226.5 380 244 186 13.3 13 4-27 42333311 31344211 32333433 444-540 16    
20230115 234.3 226.7 219.4 438 267 177 28.0 28 22-48 54444445 32443434 55343556 384-525 14 2  
20230114 227.8 216.2 209.1 451 291 170 9.1 9 3-18 33221123 33222223 54320134 404-601 20 3  
20230113 208.5 216.1 209.0 418 292 181 11.4 11 6-27 22222234 21232223 43332355 349-541 21 2  
20230112 211.6 195.0 188.6 435 246 151 8.8 9 6-15 32222223 31212222 42211335 381-458 18 5  
20230111 195.1     350 224 183 7.4 7 4-12 23221222 23222332 32211335 375-451 11 5  
20230110 193.0 186.2 180.0 420 273 201 5.9 6 3-15 11112322 10112332 31001335 322-420 24 6 1
20230109 190.9     369 229 142 4.4 4 2-7 20011221 21121232 31000333 314-398 25 3 1
20230108 183.8 187.3 181.1 331 213 117 7.0 7 3-15 22223111 2222430x 33212211 356-461 22 4  
20230107 178.9 173.5 167.8 292 188 104 5.5 6 2-12 12100320 02101321 22200321 373-477 22 1  
20230106 172.4 156.6 151.5 299 178 101 3.4 3 2-5 10011011 10101221 30000033 320-505 19   1
20230105 154.3 136.5 132.0 274 168 103 8.1 8 2-12 01113333 01123221 01102454 319-440 15    
20230104 151.0     217 158 86 18.8 19 3-39 45433221 33353321 55543210 362-550 13    
20230103 148.5 158.7 153.5 292 178 89 5.5 6 2-12 10101223 10211223 20001336 373-459 8    
20230102 146.4 159.7 154.4 216 157 94 7.0 7 4-15 22121123 11221212 42211145 368-538 9    
20230101 152.6 161.0 155.7 267 166 94 13.8 14 6-27 23232344 22332233 34332365 468-686 15    
20221231 164.9 153.9 148.8 246 136 82 15.0 15 6-27 33323334 33223333 54434456 488-714 14    
20221230 162.3     283 177 121 28.6 29 15-39 54434543 44435443 75455655 489-660 15 2  

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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