Solar and geomagnetic data

Date Measured
solar flux
2.8 GHz
Sunspot number Planetary A index K indices
(3-hour intervals)
Solar wind
speed range
(km/s)
(SOHO)
Number
of flares
Magnetic
(SDO)
NOAA STAR
ap avg
Pots-
dam
WDC
Daily
ap range
Planetary
(WDC)
Boulder C M X
2K 1K
20191212 70.5 0 0 0 3.1 3 0-6 10110002 10210111 348-421      
20191211 70.7 11 0 0 5.5 6 2-12 32011212 *2011211 356-432      
20191210 70.6 0 0 0 3.4 3 0-7 12110011 12110110 324-435      
20191209 70.7 11 11 0 4.5 4 0-12 31000002 21000111 310-343      
20191208 71.6 0 0 0 2.4 2 0-5 00000011 10000211 318-356      
20191207 70.2 0 0 0 1.9 2 0-3 10010001 10110111 321-350      
20191206 70.3 11 11 0 2.9 3 2-5 01101101 11111201 310-357      
20191205 70.7 12 11 0 1.9 2 0-3 00011100 00021100 285-342      
20191204 69.6 0 0 0 3.0 3 0-6 12101010 12111100 285-312      
20191203 69.9 11 0 0 1.6 2 0-3 00000001 01010111 282-317      
20191202 70.4 11 0 0 1.4 1 0-4 01100000 11201210 284-330      
20191201 71.2 11 0 0 3.0 3 0-6 11001112 11102221 310-357      
20191130 70.4 12 12 0 3.5 4 2-6 21001111 11111221 289-400      
20191129 69.8 12 0 0 5.0 5 2-15 11110123 11011212 311-352      
20191128 70.2 11 0 0 3.5 4 2-7 10001121 11101231 306-363      
20191127 71.5 22 11 0 3.8 4 2-6 01111211 0121222* 353-400      
20191126 70.4 0 0 0 2.5 2 0-7 22000000 11000211 348-415      
20191125 69.5 11 0 0 4.4 4 2-7 21110112 21221211 349-448      
20191124 70.6 26 11 0 11.5 12 5-18 33323313 33322212 380-464      
20191123 70.2 12 11 0 9.8 10 5-12 32133232 22244222 372-506      
20191122 69.6 25 12 0 12.0 12 7-22 42223332 41222222 450-583      
20191121 70.8 0 0 0 10.1 10 5-22 22112334 222*2233 352-591      
20191120 70.2 0 0 0 1.0 1 0-4 01000001 01000111 286-354      
20191119 69.2 11 0 0 1.8 2 0-5 01000110 *****211 296-337      
20191118 70.4 0 0 0 0.8 1 0-2 00000000 000011** 319-347      
20191117 70.1 25 11 0 3.1 3 0-12 11100013 21101212 328-433      
20191116 69.7 14 11 0 5.6 6 2-9 22011222 11122221 302-417      
20191115 70.0 0 0 0 2.0 2 0-5 00000111 00001221 285-348      
20191114 69.9 0 0 0 2.5 2 0-7 21001000 21001000 289-313      
20191113 71.1 17 12 0 1.0 1 0-5 00000011 00000220 290-305      

This page is normally updated once a day by Jan Alvestad. Solar wind speed is preliminary. Ap and Kp values in red are based on the definitive Potsdam WDC data. Flare enhanced and erroneous solar flux measurements are replaced by other same day measurements (QC).

[Solar Terrestrial Activity Report]