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
20261104 110.6 140 96 64 8.9 9 4-18 23322122 ******** 22333255 380-451 3    
20261103 99.9 175 90 41 4.1 4 0-6 02111121 ******** 01111433 370-422 1    
20261102 97.3 185 83 37 4.9 5 0-9 11221210 12332210 12222321 395-518      
20261101 94.6 136 91 30 19.3 19 7-48 54333232 44432221 65333354 458-634 1    
20261031 91.5 65 52 24 22.4 22 12-67 33333463 22433353 44333484 371-594      
20261030 89.7 85 48 36 9.0 9 4-32 21222214 12222213 01112246 318-406      
20261029 89.4 63 38 22 2.0 2 0-7 22000001 22001201 22000002 321-405      
20261028 92.6 70 49 12 6.8 7 2-12 32112121 22222222 31121343 345-431 1    
20261027 88.8 48 37 25 5.9 6 4-9 22112121 13212210 21101352 397-483 1    
20261026 90.8 65 52 25 4.4 4 3-6 11122211 01132311 10012323 340-416 6    
20261025 89.1 87 74 22 2.8 3 0-5 01011011 21121211 02123144 390-417 1    
20261024 92.5 52 28 25 4.9 5 3-7 21121111 21121210 43122333 387-455 1    
20261023 100.9 97 60 51 10.8 11 6-32 22223242 21233332 21223255 420-486 12    
20261022 106.5 90 57 49 17.3 17 9-22 34224443 23444322 44344565 424-499 6    
20261021 115.0 104 70 66 19.4 19 6-39 44222345 34333434 45223566 404-547 5    
20261020 120.8 147 92 66 7.9 8 3-18 11122223 11122322 00011445 362-481 13    
20261019 121.4 137 109 66 1.4 1 0-3 00000001 00001101 00000011 375-436 9 1  
20261018 136.6 163 112 82 4.8 5 0-9 21210110 12221220 32311121 413-571 8    
20261017 131.6 178 130 87 5.9 6 2-15 11001331 11002331 20002344 429-536 6    
20261016 131.2 187 114 81 11.4 11 4-27 31122342 32223332 32122465 470-516 33 1  
20261015 125.7 162 102 104 9.6 10 3-18 21132332 21133322 41113445 486-608 20    
20261014 123.2 150 99 124 9.5 10 5-18 23122233 23132322 44212245 513-674 10    
20261013 124.3## 165 128 102 10.8 11 4-18 33233231 43133232 55223333 485-685 6    
20261012 122.9 144 108 93 6.1 6 2-15 22310121 13421221 42321222 471-561 4    
20261011 121.9 143 111 94 12.3 12 6-27 43232222 43233211 44333345 601-797 9    
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  

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]