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
20240415 191.9     307 190 193 5.8 6 2-12 21110123 12012423 31112455 342-402 32 8  
20240414 178.4     294 194 152 4.4 4 0-6 20111112 11222312 30112124 347-409 31 1  
20240413 161.0     243 146 115 4.3 4 2-7 12101112 22113311 22012103 345-415 18 1  
20240412 151.5     245 165 83 4.4 4 2-9 22110011 12112222 22111100 393-473 16    
20240411 144.4     186 131 81 5.3 5 3-12 23111111 22113322 33111211 417-495 20 1  
20240410 131.2     178 135 54 8.0 8 5-15 32131321 21232321 31122422 417-478 26    
20240409 124.4     220 142 64 9.5 10 3-18 13322123 12334313 13322244 374-464 2    
20240408 124.8     195 108 79 7.4 7 2-18 23320110 23321210 34320210 361-428 2    
20240407 124.6     179 135 79 5.6 6 3-7 22122212 21112211 32022435 385-451 2    
20240406 122.9     197 100 71 9.5 10 5-18 33312122 32323322 44313244 415-475 1    
20240405 120.5     202 153 81 10.1 10 7-18 23232223 13333322 44234335 405-482 5    
20240404 113.7     159 104 49 10.9 11 3-18 11232333 02233323 01134565 373-553      
20240403 111.7     133 94 45 6.0 6 3-15 32111211 22212221 41113300 379-470      
20240402 112.8     148 105 35 6.0 6 4-9 12222221 11142312 33132221 419-476      
20240401 120.4     116 63 50 9.8 10 5-22 23422121 23413322 34322243 436-637 1 1  
20240331 133.6     124 75 50 8.1 8 4-22 42211112 32212322 63211114 418-632 19    
20240330 139.6     132 107 60 3.3 3 0-6 00011212 01012412 00101204 328-484 28 2  
20240329 167.3     148 115 79 4.8 5 2-6 22211100 21221211 33112101 349-448 31 3  
20240328 172.7     187 135 101 7.1 7 5-12 21123222 11223323 31112223 385-546 26 3 1
20240327 174.6     231 143 114 6.1 6 3-15 31211111 31321211 43112213 478-602 50 2  
20240326 178.2     291 202 149 10.3 10 3-15 33132233 33133223 55233354 496-860 46 6  
20240325 190.1     287 181 163 24.6 25 6-48 45444322 44333322 55434434 595-1016 39 1  
20240324 195.1     329 211 145 68.0 68 18-236 53346874 43445854 55345865 455-920 37 13  
20240323 210.7     299 190 146 31.4 31 12-67 35434456 25434544 15433555 341-513 27 17 1
20240322 197.6     342 231 171 9.6 10 2-18 33331110 33332311 43231001 336-438 38 2  
20240321 181.3     371 269 141 22.0 22 9-39 32324544 32335544 31225656 301-448 25    
20240320 175.5     278 199 120 3.8 4 2-9 10110012 10212312 40010125 323-409 27 2  
20240319 168.9     249 175 139 6.5 6 4-12 32221111 32333312 33111224 361-421 33 2  
20240318 168.9     288 187 127 3.4 3 0-12 00001123 10003333 00001044 282-389 24 3  
20240317 151.3     279 173 86 0.3 0 0-2 00000000 00112321 00000000 297-363 32    
20240316 144.1     206 155 67 1.5 2 0-3 00001100 10002211 00000000 353-429 13 2  

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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