Solar and geomagnetic data (last month)

Date Solar flux Sunspot number Planetary A index K indices
(3-hour intervals)
Min-max solar wind speed (km/sec) Number of flares
STAR SEC STAR SEC Daily low - high Planetary Boulder C M X
20030430 153.5 206 160 40.8 40 22-70 56554445 56543444 490-684 2    
20030429 155.1 207 224 21.4 20 5-48 23214455 23224544 358-629 13 1  
20030428 152.2 188 175 20.6 20 6-45 35453322 35342212 400-546 8    
20030427 154.1 173 200 15.3 15 11-20 34333433 34213433 429-552 11 1  
20030426 143.7 171 193 15.6 15 10-26 42433333 32422323 415-483 7 4  
20030425 143.6 156 173 32.4 32 17-49 45553435 54444434 467-595 10 1  
20030424 128.3 162 171 25.8 24 14-37 33454444 33343444 432-585 9 1  
20030423 132.8 122 152 17.9 18 8-36 24543333 14433333 454-565 6 2  
20030422 132.4 134 147 22.6 22 15-32 44443334 44433333 481-627 4    
20030421 125.8 138 154 21.4 21 12-39 44543333 33443333 481-579 3 1  
20030420 118.5 102 93 16.1 16 8-24 44423324 34423423 462-563 1    
20030419 112.1 88 69 12.0 * 4-17 33313323 33323323 531-681      
20030418 107.8 63 51 20.5 20 7-37 25444333 24444323 572-699   1  
20030417 101.0 42 37 30.9 30 11-54 35554533 35544432 608-768 1    
20030416 98.5 46 40 31.4 31 12-80 43463354 43454344 589-774      
20030415 100.5 36 54 23.3 22 8-53 44454223 44454323 519-630      
20030414 102.0 57 63 16.8 16 5-39 23125433 24224333 458-623 1    
20030413 102.4 60 61 10.9 10 6-17 33223222 33223322 444-561 1    
20030412 102.1 69 60 8.8 7 7-14 32223222 32222222 509-690      
20030411 102.6 39 49 14.4 14 6-18 33233333 34232333 586-748 2    
20030410 103.7 46 66 26.1 26 15-50 35553343 35543443 496-722      
20030409 109.4 84 88 26.0 25 10-53 43545332 53544333 393-510 5 1  
20030408 112.3 77 52 20.8 20 7-38 23454423 33443423 353-481      
20030407 115.6 64 77 7.1 6 4-13 21123311 22222212 349-378 2    
20030406 125.9 78 75 10.1 9 4-16 33222331 23232212 369-550 2    
20030405 137.4 87 94 23.9 23 11-36 54334444 45233443 443-541 9    
20030404 152.5 105 148 27.4 26 12-42 43555344 33554333 459-509 18 1  
20030403 155.7 148 154 15.0 14 7-26 32333334 33333333 434-482 14    
20030402 157.5 185 189 21.5 20 10-29 24444334 33444433 446-555 6    
20030401 153.0 170 161 16.2 12 5-36 54132333 44223333 452-561 2    

This page is normally updated once a day by Jan Alvestad. All values are preliminary.

[DX-Listeners' Club] [Solar Terrestrial Activity Report]