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) STAR
(SDO) (6)		 NOAA
(5)		 STAR
ap avg		 Pots-
dam
WDC		 Daily
ap range		 Planetary
(WDC)		 Boulder
(5)		 Andenes
(Tromsų)		 C M X
Measured
(20h UT)		 2K 1K
20261010 125.5 161 100 99 52.4 52 7-154 23324776 22433664 34224775 399-873 23 2  
20261009 120.6 169 107 93 10.0 10 3-22 33242113 32352322 54233236 365-418 30 1  
20261008 119.2 128 97 69 5.3 5 4-9 11121121 11222211 11023553 382-409 28 1  
20261007 113.7 155 92 78 5.4 5 2-12 10101331 11102221 21001443 375-411 15    
20261006 112.8 163 102 77 10.4 10 5-15 33222123 23332212 54333255 411-614 25 3  
20261005 100.3 184 144 58 22.9 23 7-48 45233444 46243323 56334565 541-657 9 1  
20261004 91.8 141 105 55 38.3 38 15-67 33455565 33554543 22344665 313-662      
20261003 93.3 116 79 53 5.4 5 2-12 13221001 23321211 20112103 303-353      
20261002 92.4 102 77 37 2.4 2 0-6 11000012 11001211 10000033 312-358      
20261001 92.4 40 36 38 3.1 3 0-6 00001112 01101312 20011332 322-357 1    
20260930 93.2 65 54 29 1.4 1 0-3 10011000 11011211 20001001 299-362 1    
20260929 91.9 45 35 28 2.9 3 0-6 20010001 10011221 31010124 300-359 2    
20260928 95.3 65 43 46 3.0 3 0-5 11011111 02122210 11011243 335-408 2    
20260927 97.4 119 72 67 8.0 8 0-32 43111000 43323210 63222101 384-493 5    
20260926 101.0 112 76 88 11.4 11 4-22 43331123 34322222 54422255 465-528 5    
20260925 105.4 174 122 110 22.3 22 12-27 44443334 34553523 54434465 430-568 3    
20260924 112.4 185 110 124 13.9 14 6-27 32343323 32353312 41234445 349-465 1    
20260923 120.5 193 142 142 2.3 2 0-6 10000012 10002222 00000003 286-343 4    
20260922 118.4 205 147 126 1.9 2 0-6 20000001 21001311 41000102 311-355 3    
20260921 104.1 197 141 85 1.9 2 0-6 21000001 11001310 30000013 328-412 2    
20260920 100.8 153 125 54 5.1 5 0-15 23200001 23201211 43210003 389-462 2    
20260919 97.1 105 91 11 6.3 6 4-12 23111122 23212221 22112224 410-486 1    
20260918 95.9 79 33 0 4.6 5 2-6 12210112 12221211 41110133 413-507      
20260917 96.8 73 33 11 7.6 8 6-12 32222222 22213212 42023215 475-630      
20260916 99.7 75 44 23 7.8 8 2-18 33222102 43312211 52223114 451-620      
20260915 106.5 141 83 23 7.3 7 0-18 32002023 32013223 51002146 376-729      
20260914 104.3 124 80 51 11.5 12 4-27 12123433 12113423 22322445 315-446      
20260913 106.9## 149 114 77 5.8 6 2-15 23201101 13202211 34312211 378-506 1    
20260912 108.5 207 114 87 6.0 6 3-9 12222111 12332312 42222210 376-462 1    
20260911 110.0 157 101 88 7.3 7 3-12 13232112 13332222 33232225 408-485      

2) Solar wind speed is preliminary (* on days with none or too few measurements from SOHO-CELIAS/MTOF PM, measurements from SOLAR-1 are used)
3) Ap and Kp values in red are based on the definitive Potsdam WDC data.
4) Flare enhanced measurements, unreported measurements, and measurements that most likely are invalid are replaced by other same day measurements when possible ## (daily QC). Solar flux measurements that may be invalid are temporarily marked **, while interpolated values are marked # .
5) Suspected faulty measurement or incomplete observation.
6) Sunspot count temporarily using other data sources than SDO.

This page is normally updated once a day by Jan Alvestad.

[Solar Terrestrial Activity Report]