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
20211031 102.7 106.8 105.3 148 97 83 14.1 14 2-27 22034234 33424223 33134356 318-443 5    
20211030 107.2 107.2 105.7 163 119 76 8.5 8 3-22 23211224 22311223 32211136 288-350 6    
20211029 108.4     200 124 82 1.3 1 0-5 00000101 01100212 00000013 281-329 5 1  
20211028 111.7 110.0 108.6 211 138 96 0.9 1 0-5 00000100 01001310 00000000 276-341 11 2 1
20211027 110.9 109.1 107.7 178 124 91 2.0 2 0-4 10001010 10101310 00000001 316-371 17    
20211026 109.3 100.4 99.3 215 138 95 4.3 4 2-9 12111102 21012212 22000004 306-358 15 2  
20211025 100.6 93.4 92.3 195 144 81 4.1 4 2-9 11101211 01211321 10000223 287-340 4    
20211024 93.2 87.0 86.0 133 82 46 3.5 4 2-6 11011211 01111321 10001233 303-349      
20211023 86.8 87.3 86.4 124 72 32 2.5 2 0-6 20000010 11001210 30000020 322-444      
20211022 86.9     100 69 28 2.9 3 0-6 10002011 10001211 20001003 406-459      
20211021 81.9 76.0 75.3 78 36 11 5.1 5 3-7 22111212 23331222 32111225 452-551      
20211020 75.9 76.4 75.3 36 23 11 5.3 5 3-9 12112112 23112222 12001234 347-453      
20211019 76.0 76.0 75.4 34 33 11 12.5 12 4-27 23212441 23222332 35222424 336-403      
20211018 75.9 77.2 76.6 56 33 11 8.9 9 3-18 33212223 32222222 54212355 289-365      
20211017 77.4 77.9 77.4 47 11 0 10.5 10 2-27 01122244 ******** 01124464 301-389      
20211016 77.6 84.1 83.5 24 11 11 5.1 5 0-15 32110110 ******** 52010100 336-390      
20211015 79.2 83.0 82.6 66 11 11 4.1 4 0-9 22110002 ******** 22110005 316-364      
20211014 83.4 84.3 83.9 49 22 24 6.4 6 4-9 22121122 22232221 33113344 346-414 2    
20211013 83.5 82.9 82.6 74 28 27 4.9 5 0-18 32100111 32211210 42000133 350-515 2    
20211012 83.5     33 15 26 46.0 46 18-94 56565433 46665433 77545545 348-491      
20211011 88.5 84.3 84.0 64 46 35 14.0 14 5-22 33323134 33444224 55233366 346-399      
20211010 84.5 81.1 80.8 64 46 38 10.8 11 2-39 02113225 11113224 10014436 273-353 1    
20211009 87.1 88.2 88.0 62 46 14 4.0 4 3-6 11112111 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 2.8 3 0-5 10011110 1******* 00003331 276-431 2    
20211006 84.8     69 35 22 8.0 8 3-15 22122331 12343321 21023431 281-361      
20211005 81.7 84.3 84.3 46 39 27 4.5 4 2-12 23001001 33121321 22001123 270-338      
20211004 83.5 86.2 86.2 98 53 29 4.5 4 2-12 31110102 22211121 52110125 309-364      
20211003 86.0 82.1 82.2 50 29 38 4.9 5 0-7 02122112 13132211 01111145 347-470 2    
20211002 87.0     37 29 25 7.3 7 0-27 00143210 00244310 00043210 416-650 1    
20211001 90.5     60 35 28 12.1 12 0-22 32433220 23444221 42343411 488-699      
Average 88.9 87.8 87.2 91.7 56.3 36.6 7.38 7.26
International sunspot number (SILSO-WDC): 38.1
K factor       0.42 0.68 1.04  

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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