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
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  
20240315 129.0     144 106 49 6.4 6 2-18 32211100 43211210 63312101 387-439 7    
20240314 127.1     164 117 88 6.8 7 3-15 12121223 121233** 13111346 377-467 15 1  
20240313 128.3     181 111 86 8.1 8 2-18 10322321 10433421 30222442 369-431 4    
20240312 130.5     188 127 68 4.1 4 2-9 20111200 21122321 40112300 371-417 20    
20240311 126.7     221 142 56 3.8 4 0-7 11211101 01222311 20200002 351-404 4    
20240310 127.0     197 123 77 6.4 6 3-9 21222221 11231321 30121433 380-463 8 1  
20240309 134.5     172 122 99 10.9 11 5-27 43222132 33322322 53312263 417-500 6    
20240308 129.0     223 144 91 9.3 9 3-22 33212124 33212223 44212236 390-569 4 1  
20240307 136.6     230 145 99 11.4 11 5-22 31232343 32223323 22333365 370-450 25    
20240306 136.0     235 134 105 5.1 5 0-15 13122100 23222210 24112100 341-452 3    
20240305 141.5     215 135 121 5.8 6 2-12 31212120 22213221 51122130 371-480 8    
20240304 139.9     234 165 113 8.8 9 4-27 42211112 33322211 52212125 324-426 11    
20240303 145.5     225 138 90 33.9 34 2-94 31035664 20035643 40035765 279-395 19    
20240302 152.3     200 131 91 4.1 4 2-9 21112001 21112210 43001113 278-404 13    
20240301 152.8     257 181 120 7.0 7 3-12 33211211 33412321 54211443 349-427 22    
Average 154.4     229.9 153.8 103.6 11.03 10.96
International sunspot number (SILSO-WDC): 104.9
K factor       0.45 0.68 1.01  

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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