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
20220523 158.2     296 190 132 3.6 4 0-9 11220000 22332211 21220000 *444-542 11    
20220522 164.7     332 194 138 10.1 10 4-22 43322221 33433331 67335332 *472-552 11    
20220521 166.7     353 218 110 9.8 10 4-18 33212321 23324311 56225522 *451-567 9    
20220520 165.5     305 183 109 10.4 10 6-18 23222323 12232423 43233536 *516-615 11 1  
20220519 173.2     327 192 154 8.8 9 5-12 33322122 22323422 54222233 *436-564 13 3  
20220518 179.9     311 218 147 5.9 6 3-15 32111112 32122313 62123114 *416-527 22 1  
20220517 170.8     318 174 153 11.0 11 3-18 13333222 23343322 03224253 470-660 23    
20220516 161.7     328 175 173 8.9 9 4-15 13332221 24332322 23333342 489-601 14 1  
20220515 153.6     307 167 129 11.3 11 4-22 44222321 44332322 55333311 485-627 9    
20220514 152.7     275 174 105 6.1 6 3-12 21111322 21222322 32212324 331-454 15 1  
20220513 149.5     245 159 120 6.5 6 4-15 21112123 21222423 32122244 323-395 19    
20220512 133.0     286 173 112 7.6 8 2-12 22103322 22223322 34114422 297-378 15 1  
20220511 126.3     188 96 84 4.6 5 0-7 21101222 11122222 43012343 298-350 20 3  
20220510 115.8     146 67 62 2.3 2 0-5 01001101 10013311 21002214 303-350 13 1 1
20220509 117.0     166 92 71 6.1 6 2-15 23211110 34222311 33222222 312-357 7    
20220508 119.2 120.4 122.6 125 86 89 5.3 5 4-7 21112112 32122312 23023234 302-388 7    
20220507 118.1     165 124 66 1.1 1 0-4 00001001 11112202 11012103 282-373 4    
20220506 119.2 106.9 108.8 146 109 64 3.8 4 0-7 00211210 0022131? 00112330 322-415 15    
20220505 119.9     208 106 85 3.4 3 0-5 11100111 11111211 42212122 334-424 26 2  
20220504 130.1 106.9 108.6 174 129 64 5.6 6 2-9 12221012 22332212 32223125 347-415 16 5  
20220503 113.8 108.5 110.2 186 102 53 5.9 6 4-9 22212112 22222312 33113225 384-461 8 1 1
20220502 111.9 109.5 111.2 180 134 69 4.6 5 0-12 31100121 22111221 51001243 427-496 3    
20220501 109.0 111.2 112.9 149 99 36 7.5 8 5-12 33211112 23322222 45222332 427-567 7    
20220430 119.7 117.9 119.6 163 81 50 14.5 15 6-32 44322322 45323422 67333425 455-588 15 4 1
20220429 123.5 122.0 123.8 202 118 90 11.8 12 7-22 34223232 34233322 55334444 461-582 8 2  
20220428 132.2 135.2 137.0 231 130 118 14.1 14 6-22 43322333 34323433 64323355 455-581 11    
20220427 141.5 135.3 137.1 255 179 95 17.1 17 4-48 12115434 22214434 32115555 394-542 7    
20220426 148.9 149.8 151.7 305 169 126 2.1 2 0-4 00101100 00112311 00102100 380-431 8    
20220425 156.6     256 147 94 3.6 4 0-6 00121121 10132211 00122232 391-470 12 2  
20220424 158.5     250 136 112 4.5 4 0-7 22211110 22211210 31311210 430-551 5    

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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