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
20240616 167.3     302 165 152 11.9 12 3-22 31233334 21032332 41233553 388-492 42    
20240615 170.7     248 146 134 18.6 19 7-48 22235434 23234424 53335435 358-498 43 1  
20240614 169.0     289 179 117 4.6 5 2-6 01221012 11221222 21122234 292-387 32 3  
20240613 170.1     287 180 124 2.1 2 0-4 00001110 10112311 20012201 329-370 15 1  
20240612 164.9     286 192 145 4.1 4 3-6 11111112 11221322 01113244 343-389 17 1  
20240611 164.9     298 164 81 10.9 11 3-27 44221112 53222212 56322323 369-566 13    
20240610 177.8     243 144 146 9.0 9 3-27 21111342 20122332 30112342 364-520 14 6 1
20240609 180.9     320 196 148 4.6 5 3-7 11112121 21211311 31113233 383-492 22 3  
20240608 190.4     278 196 143 12.5 12 6-32 43222322 43332422 56233333 459-558 21 9  
20240607 184.4     304 184 150 31.4 31 5-111 23247633 13235533 44246524 384-508 27 2  
20240606 190.9     283 166 149 4.5 4 2-7 22211101 22321412 33221101 380-449 25 2  
20240605 195.3     342 234 193 5.9 6 3-9 12222112 12233323 12223433 398-590 25 2  
20240604 192.3     373 262 224 6.0 6 2-12 23221010 33322201 13322221 391-485 23 2  
20240603 186.0     409 290 208 8.6 9 4-32 11121124 22222224 31123334 303-436 21 4  
20240602 179.8     417 281 186 3.8 4 2-7 01011112 10012122 01021205 311-359 46 2  
20240601 187.9     438 287 194 4.0 4 2-9 20111110 21122211 43123300 329-394 29 1 2
20240531 179.4     347 224 135 9.9 10 4-32 34211221 35222312 46423433 342-444 42 1 1
20240530 172.9     277 191 144 7.1 7 2-18 01112323 12222323 21023444 347-431 23 1  
20240529 170.5     262 177 131 5.3 5 2-9 01221222 12222322 00121343 329-429 17 10 1
20240528 166.6     306 197 141 4.1 4 2-7 22210111 32222211 31110100 331-388 48    
20240527 170.0     287 174 116 7.0 7 2-15 10232112 11243422 11222103 369-454 27   1
20240526 155.6     261 172 148 8.3 8 3-12 12123331 23123332 43125433 354-454 24    
20240525 152.1     263 181 106 5.3 5 3-9 11111212 12212312 23211435 365-441 14    
20240524 162.8     219 160 100 8.6 9 2-15 23332101 33233212 34333322 377-438 26 4  
20240523 176.2     249 156 130 7.8 8 3-18 11122223 12222334 01135445 374-417 41 5  
20240522 195.7     274 190 120 3.1 3 0-6 20000111 20011222 22000001 343-432 25 3  
20240521 190.8     313 212 146 7.0 7 3-12 21123321 21133321 21133433 379-466 22 1  
20240520 199.7     329 230 124 5.5 6 3-9 12212112 23323313 13222123 378-433 20    
20240519 200.7     383 242 154 7.6 8 4-12 13123222 13233322 25125432 386-437 20 3  
20240518 194.3     400 249 147 11.5 12 4-27 43232211 33343211 54434423 385-483 19    
20240517 204.1     382 254 168 29.9 30 5-80 12124565 22214544 23123566 345-506 24 1  

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.

[Solar Terrestrial Activity Report]