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 C M X
Measured (20h UT) (02-11 UT) 2K 1K
  1AU
20211016 77.4     47 11 0 9.4 9 2-22 01122243 ******** 01124464 301-389      
20211016 77.6     24 11 11 5.6 6 0-18 32110110 ******** 52010100 336-390      
20211015 79.2     66 11 11 4.4 4 0-9 22110012 ******** 22110005 316-364      
20211014 83.4     49 22 24 6.5 6 4-9 22121222 22232221 33113344 346-414 2    
20211013 83.5     74 28 27 5.1 5 0-18 32100101 32211210 42000133 350-515 2    
20211012 83.5     33 15 26 42.8 43 18-80 56564433| 46665433 77545545 348-491      
20211011 88.5 84.3 84.0 64 46 35 13.5 14 4-22 33322134 33444224 55233366 346-399      
20211010 84.5 81.1 80.8 64 46 38 10.8 11 3-39 12123225 11113224 10014436 273-353 1    
20211009 87.1 88.2 88.0 62 46 14 4.0 4 2-6 21112101 11222221 30012222 270-310 1 1  
20211008 85.7 85.0 84.9 68 37 13 3.1 3 0-7 21100010 21111211 21000032 270-312 3    
20211007 85.7 85.0 84.9 62 19 13 2.9 3 0-5 11111110 1******* 00003331 276-431 2    
20211006 84.8     69 35 22 7.3 7 3-12 22222321 12343321 21023431 281-361      
20211005 81.7 84.3 84.3 46 39 27 4.6 5 2-12 23001101 33121321 22001123 270-338      
20211004 83.5 86.2 86.2 98 53 29 4.5 4 2-9 22110102 22211121 52110125 309-364      
20211003 86.0 82.1 82.2 50 29 38 5.0 5 0-7 02122112 13132211 01111145 347-470 2    
20211002 87.0     37 29 25 6.8 7 0-22 00143210 00244310 00043210 416-650 1    
20211001 90.5     60 35 28 13.1 13 0-27 33433220 23444221 42343411 488-699      
20210930 94.6 101.6 101.9 89 65 46 7.5 8 0-27 10011342 21112332 20011344 347-559 1    
20210929 101.6 88.0 88.3 134 104 74 4.0 4 0-7 00112121 10122322 10012232 375-483 4    
20210928 88.9 84.3 84.7 174 106 57 8.9 9 5-15 12222233 12332233 22222255 443-589 1    
20210927 85.3 84.9 85.3 114 80 30 6.1 6 3-9 22111212   33010212 346-470      
20210926 86.3 87.0 87.5 116 93 67 1.1 1 0-3 00000001 10001112 30000002 346-447 2    
20210925 88.4 87.2 87.7 141 90 38 5.8 6 3-9 22221112 22221221 11111423 445-557 3    
20210924 88.4 90.1 90.6 156 93 75 6.9 7 3-18 22211321 22312311 33121114 435-486 1    
20210923 89.7 88.1 88.7 171 100 75 8.6 9 2-22 23422210 22533221 42322100 349-401 2 2  
20210922 88.5 84.0 84.6 215 123 76 11.6 12 3-27 43431112 32532111 65233345 347-412 1    
20210921 84.9 80.0 80.7 163 103 50 6.5 6 0-15 20001323 20112423 40011434 284-392 3    
20210920 80.0 73.9 74.7 117 95 51 2.6 3 0-5 10010001 20012211 22010112 276-347      
20210919 75.0 73.0 73.8 81 41 13 1.5 2 0-5 10001000 10012110 20011010 302-380      
20210918 73.7 73.0 73.8 35 12 11 8.4 8 2-18 33322001 35533211 33322013 347-442 1    

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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