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
20210630 94.1 92.1 95.2 134 110 53 13.1 13 2-27 02331344 12332334 02123354 332-522* 2    
20210629 92.5 87.9 90.9 183 118 56 4.5 4 2-9 10112220 10112312 20002351 313-355*      
20210628 88.6 86.0 88.9 156 106 50 2.9 3 2-4 10001111 21111311 20001101 307-370* 2    
20210627 87.0 81.1 83.9 109 76 32 3.0 3 2-4 00101111 10211221 11002102 312-376*      
20210626 82.4 82.1 84.8 107 67 16 3.1 3 2-5 00111100 10121211 00112201 336-405*      
20210625 83.4     76 52 25 5.6 6 2-15 32111110 43220222 54122120 360-431* 1    
20210624 80.6     70 25 11 4.3 4 2-9 01101122 01221323 00011114 323-387*      
20210623 79.7 80.0 82.7 36 22 11 3.3 3 0-9 21111000 21111202 31010010 306-376* 1    
20210622 80.8     51 34 12 5.4 5 3-9 12112111 23222212 32222213 327-371*      
20210621 79.1 75.1 77.6 52 37 11 3.1 3 0-5 10011111 11011221 20012213 329-388*      
20210620 76.4 76.0 78.5 56 29 13 3.9 4 2-12 11000013 11101313 23232124 362-453*      
20210619 77.1 76.1 78.6 67 43 15 3.3 3 2-5 11110101 21111211 22111102 427-548*      
20210618 77.0 75.2 77.6 79 54 24 6.0 6 4-9 22222111 22232211 54134113 451-498      
20210617 77.4 75.1 77.5 81 47 12 5.3 5 3-9 12211211 23323211 23212221 461-571      
20210616 76.9 75.2 77.6 84 37 11 12.9 13 7-27 43222323 44332323 65333336 509-608      
20210615 75.5 75.2 77.6 53 36 11 16.6 17 5-48 21223454 22334443 22124466 317-590      
20210614 76.8 69.1 71.2 89 71 11 3.5 4 2-6 10111012 10122222 11122113 311-405      
20210613 68.9 77.9 80.3 117 69 22 5.0 5 0-15 33010100 43111211 65110111 406-517*      
20210612 77.6 76.6 79.0 73 25 0 9.4 9 5-22 34122211 33112312 46222231 331-487*      
20210611 77.3 73.1 75.3 67 28 13 7.9 8 5-12 23222212 22332312 44344444 294-365      
20210610 73.3 79.0 81.5 64 33 29 4.0 4 2-7 10001212 11012322 11001214 283-351 1    
20210609 78.6 80.0 82.5 66 45 27 2.9 3 0-5 11100010 12112211 31100110 311-373 3    
20210608 79.9     84 70 34 4.5 5 3-7 22211111 22211311 42210223 361-497 3    
20210607 80.8     89 64 53 11.4 11 3-22 11223334 22322334 01123354 296-457      
20210606 77.4     149 101 42 3.4 3 0-7 21100012 12211222 33000001 278-337      
20210605 74.4     119 70 30 3.5 4 2-7 01001012 12112212 20101114 290-405      
20210604 77.1     82 55 30 4.0 4 2-5 11011111 22122412 12112113 286-403      
20210603 75.5 74.0 76.2 102 74 28 5.0 5 0-9 22221110 23332210 10123310 280-323      
20210602 76.3 74.0 76.1 77 59 30 4.4 4 0-12 00003211 01113222 00003132 285-314      
20210601 75.2 80.0 82.3 54 34 20 0.8 1 0-4 10000000 20011211 11000000 275-321 1    
Average 79.3 78.2 80.7 87.5 56.4 24.4 5.52 5.47
International sunspot number (SILSO-WDC): 25.3
K factor       0.29 0.45 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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