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
20230928 147.8     242 137 109 5.1 5 0-15 23111002 12012222 34120004 347-513* 14 1  
20230927 156.0     259 183 138 14.4 14 3-22 43313321 33343321 53233333 410-598 17    
20230926 164.9     278 195 179 27.9 28 18-48 34555333 34555332 33434565 393-530 24    
20230925 170.2     272 197 164 24.6 25 7-67 65433322 44334322 66323233 407-680 20    
20230924 173.7     330 223 172 20.8 21 3-67 21221166 21332256 43232177 296-485 30 4  
20230923 173.0     348 252 198 8.6 9 5-12 33122123 32343222 33233345 317-383 31 1  
20230922 175.7     323 230 184 8.3 8 5-15 21222312 11333322 42133345 351-396 23 4  
20230921 168.1     357 269 159 8.6 9 5-12 32222213 22313222 33223355 365-530 23 1  
20230920 155.5     310 214 159 15.8 16 7-22 43432233 33443323 65323265 448-657 18 1  
20230919 166.1     299 185 143 46.1 46 12-94 66446543 46444432 77547773 530-657 25 3  
20230918 154.5     262 181 139 29.4 29 6-48 44324554 43214544 65324645 432-599 25    
20230917 144.6     208 149 94 14.6 15 9-18 33333233 33333333 45213355 389-607 5    
20230916 140.4     210 124 88 6.0 6 2-15 10110233 10112322 20011364 369-465 20 2  
20230915 139.1     212 139 96 6.4 6 2-15 22102213 22113322 33102325 381-573 17 1  
20230914 145.2     246 181 110 16.9 17 5-32 42312244 42322244 63211356 381-503 12 4  
20230913 142.6     226 161 109 15.9 16 6-39 54223323 34234323 43334435 373-470 10    
20230912 153.5     268 146 141 23.0 23 2-56 10135544 11025634 10135654 346-419 24 2  
20230911 176.4     319 215 173 5.1 5 3-7 11122112 22113222 21022123 336-442 24 3  
20230910 163.9     362 261 167 2.3 2 0-5 10000111 10002222 00000123 318-369 19    
20230909 161.4     302 205 119 7.5 8 2-12 31133210 21123311 43033410 324-400 21    
20230908 160.9     286 164 123 5.1 5 0-12 31011210 22012321 33012331 322-393 24    
20230907 160.8     306 142 135 5.0 5 3-7 21112212 20112221 40013244 330-406 16 1  
20230906 147.1     289 178 131 6.4 6 2-18 21213210 21313321 21014332 351-453 20    
20230905 142.9     286 174 121 9.1 9 2-27 11012442 11112432 10023542 350-455 12 3  
20230904 136.0     230 149 100 6.0 6 0-12 32111220 33113311 43112320 349-485 22    
20230903 130.5     244 138 79 22.6 23 5-56 54433313 53543213 63444435 444-628 15 2  
20230902 131.2     187 117 77 37.0 37 18-56 34555445 34555434 55544575 479-806 5 1  
20230901 135.8     209 107 83 12.3 12 5-18 33333331 23344232 33234443 332-637 7 1  
20230831 139.9     214 130 77 5.3 5 3-7 11221122 12233322 11111233 309-427 4    
20230830 138.6 140.7 143.4 191 137 94 4.8 5 2-7 21112110 21113321 50014320 304-329 9    
20230829 142.2     200 144 82 3.6 4 0-7 00012112 11023312 00023215 314-377 11    

1) Data obtained courtesy of the Institute of Ionosphere, Kazakhstan
 2) Solar wind speed is preliminary (* on days with no or too few measurements from SOHO-CELIAS/MTOF PM, measurements from DSCOVR or ACE 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 ## (daily QC). 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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