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)
(daily avg)		 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)		 (02-11 UT) 2K 1K
  1AU
20251130 180.4 149.8 145.7 254 205 108 14.3 14 5-27 44231233 45242232 55442354 541-692 38    
20251129 155.3## 134.2 130.5 198 125 74 18.9 19 9-27 23434433 23444322 45444465 613-690 35 7  
20251128 138.2 124.7 121.4 209 122 87 19.5 20 15-27 33444433 33553332 65445435 632-754 43 2  
20251127 120.9 119.1 116.0 196 131 76 25.3 25 12-32 33444444 24544333 55554376 626-768 18    
20251126 120.8 120.7 117.6 186 124 85 22.6 23 12-32 34434433 34434433 54545565 640-807 12    
20251125 116.9 126.1 122.9 201 136 99 28.8 29 12-39 55444443 44455432 55545555 661-819 5    
20251124 116.2 126.7 123.5 190 134 99 20.4 20 15-39 33335433 32335333 44344546 458-780 6    
20251123 119.6 126.5 123.4 196 144 79 11.4 11 6-22 32223432 11233422 41224354 394-526 9    
20251122 119.3 123.4 120.4 170 116 74 4.8 5 2-9 21101122 11102312 31101225 402-485 18    
20251121 121.2     186 135 75 7.1 7 3-12 33112221 22111321 32111442 396-501 15    
20251120 121.4 122.4 119.6 171 101 51 6.5 6 2-15 02110233 02211322 11100334 382-461 14    
20251119 122.5 118.4 115.7 168 118 60 2.1 2 0-4 00100010 10111211 10000011 383-490 3    
20251118 120.1 118.3 115.6 202 146 66 3.5 4 0-9 22200001 22311211 42210003 382-588 7    
20251117 122.3 119.4 116.7 187 109 45 9.6 10 3-22 43312122 43312222 33312223 485-619 22    
20251116 132.3 120.0 117.4 251 134 66 16.8 17 12-22 34334333 33323322 44234345 550-747 32 1  
20251115 132.3 123.7 121.0 200 126 97 8.4 8 4-18 11222233 11222322 22323265 541-659 33    
20251114 145.3 130.6 127.8 252 176 114 3.0 3 0-5 11111100 2121*300 21012210 542-814 40 3 1
20251113 155.9 131.3 128.6 299 162 104 57.1 57 3-154 77645431 68645532 76535332 598-1000 34    
20251112 163.3 141.5 138.6 326 172 150 136.6 137 32-300 99785464 76575554 96765564 533-957 24    
20251111 168.0 150.8 147.9 370 231 131 6.0 6 2-12 23121102 12221312 23221115 393-765 30 2 1
20251110 170.8## 151.2 148.2 380 209 128 13.6 14 4-32 32123433 22113432 52014446 479-612 35 2 1
20251109 175.6 158.9 155.9 343 238 126 6.8 7 4-15 21212113 22323323 32203116 498-665 23   1
20251108 171.9 152.1 149.3 348 229 107 33.4 33 5-80 65543331 56643321 76544443 602-709 39    
20251107 165.8 156.3 153.5 269 156 133 31.3 31 15-56 55543333 65443233 66544453 617-941 50 1  
20251106 163.7     250 152 104 43.0 43 7-111 57642345 57543334 56533356 418-726 51 1  
20251105 147.5     210 147 76 22.9 23 6-67 43422246 32532335 54424467 379-456 38 3  
20251104 151.6##     148 105 91 8.9 9 6-15 32232222 22243421 53322334 385-483 32 2 2
20251103 133.0 133.4 131.3 151 108 87 19.6 20 12-32 33443433 23554323 53434456 415-570 24 6  
20251102 123.0 130.1 128.1 130 73 43 15.8 16 9-32 43222433 54332322 54332555 488-628 18 1  
20251101 115.3 127.3 125.4 123 74 24 12.8 13 9-18 33323332 23332321 44334365 518-658 10    
Average 140.3 132.2 129.3 225.5 144.6 88.6 21.01 21.07
International sunspot number (SILSO-WDC): 91.7
K factor       0.41 0.63 1.03  

1) Calculated based on 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 or ACE 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 ## (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]