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
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  
20221229 162.8 140.6 136.0 263 163 113 10.0 10 0-22 00123334 01224333 00113457 433-509 13 3  
20221228 160.4 140.3 135.7 231 139 88 4.5 4 3-9 22111111 22202211 52100002 443-603 16    
20221227 159.0 139.1 134.6 249 162 89 24.1 24 7-32 44444422 35445521 65533654 491-589 18 3  
20221226 150.5 145.8 141.1 274 140 96 22.9 23 5-67 32346521 22345422 42246534 436-691 33    
20221225 144.0 137.0 132.6 312 187 107 8.4 8 4-15 33112223 24223222 43212245 424-669 14    
20221224 133.3 127.7 123.6 280 176 85 21.9 22 15-32 34433433 34543432 46433545 492-703 10    
20221223 127.7 130.6 126.4 211 127 100 20.6 21 7-39 42434425 32536524 63445446 481-575 12    
20221222 131.3 143.9 139.2 210 148 108 10.3 10 0-22 10123343 01223332 10014554 386-500 9    
20221221 138.7 151.2 146.3 204 132 103 8.4 8 6-18 22322322 10332321 43222233 335-440 11    
20221220 146.4 158.4 153.3 258 164 119 4.6 5 2-9 11100122 11111322 31100133 335-445 15 1  
20221219 152.4 159.1 154.1 267 169 132 8.9 9 5-22 24312122 24312211 23223344 302-385 17    
20221218 155.6 164.1 158.9 258 157 128 3.4 3 2-7 00011112 00012211 00001234 291-377 18    
20221217 154.6 170.2 164.9 265 158 139 2.0 2 0-6 12000000   31100000 293-356 18 1  
20221216 163.1 173.6 168.2 239 143   4.3 4 0-12 31001111   40010132 316-381 17 13  
20221215 165.9     279 176 140 5.0 5 3-7 22211111 12212121 22110344 333-381 22 10  
20221214 164.7     291 197 174 3.9 4 2-7 01100222 02002221 00000344 336-418 15 13  
20221213 153.0 152.9 148.2 396 281 159 2.8 3 0-7 20001101 21111211 30000002 374-461 5    
20221212 150.8     342 244 142 5.4 5 2-12 31001122 21101222 51101124 403-484 7    
20221211 147.7     302 188 141 8.6 9 5-12 23212313 23322322 34423435 426-497 10    
20221210 141.7     293 209 111 8.1 8 3-15 32131232 31142221 43111243 364-530 18    
20221209 149.1     299 195 116 10.4 10 5-32 42232122 41231221 63222223 477-628 20    
20221208 143.0     281 172 115 9.0 9 4-27 23211124 13211224 23321146 477-628 2    
20221207 148.0     327 206 107 15.5 16 3-39 11135433 12034333 21015554 333-498 11    
20221206 144.2     284 169 123 3.1 3 0-6 01012110 02012210 11101032 351-439 2    
20221205 149.8     257 156 89 6.3 6 0-12 02223210 12323211 12313320 408-578 9    
20221204 143.7     230 142 93 16.3 16 4-32 22123444 22234444 31014765 487-596 7    
20221203 133.8     199 142 68 9.6 10 6-18 23222322 23232310 55322344 487-709 16 1  
20221202 124.0     165 128 66 15.0 15 12-18 33333333 34332332 45433564 621-788 6    
20221201 118.7     121 93 49 24.1 24 12-39 35444444 35435432 45554466 608-817 6 1  
Average 147.9     261.8 167.0 110.1 10.99 10.97
International sunspot number (SILSO-WDC): 113.1
K factor       0.43 0.68 1.03  

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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