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
20190721 67.7 30 13 0 8.0 8 3-22 11221234 11222333 293-341      
20190720 67.0 11 0 0 2.1 2 0-3 00101010 01111221 276-324      
20190719 66.7 24 0 0 3.1 3 2-5 10011111 10111211 279-356      
20190718 67.0 0 0 0 2.9 3 2-4 10011101 11102212 332-394      
20190717 67.8 0 0 0 5.6 6 3-9 12212112 24212112 346-460      
20190716 67.2 0 0 0 4.4 4 2-6 01211111 12221221 343-407      
20190715 67.1 11 0 0 6.4 6 2-12 32121120 33232211 373-463      
20190714 67.2 23 0 0 4.8 5 3-9 21111112 21112212 382-448      
20190713 66.0 0 0 0 5.4 5 2-9 01122222 01122322 392-446      
20190712 66.8 23 0 0 4.6 5 2-7 11221011 12332211 407-462      
20190711 67.1 0 0 0 6.8 7 3-15 32311111 34312211 447-571      
20190710 67.8 0 0 0 13.8 14 4-32 24432112 26544312 482-623      
20190709 67.5 0 0 0 13.8 14 6-39 32222335 33332333 367-600      
20190708 66.5 35 11 0 7.4 7 0-18 32100133 22111333 283-405      
20190707 67.3 38 13 12 4.1 4 3-6 11111112 11222312 304-348      
20190706 66.5 16 12 0 2.5 2 0-4 11100001 12112312 302-346      
20190705 66.8 0 0 0 4.5 4 0-6 21112100 21223201 311-421      
20190704 67.6 0 0 0 4.4 4 2-7 01002122 11102223 316-374      
20190703 66.9 26 12 0 3.3 3 0-5 00111110 00222211 287-366      
20190702 67.3 13 11 0 4.0 4 2-9 11111220 11112221 275-339      
20190701 68.2 29 23 0 7.6 8 4-15 23222112 33322212 296-352      
20190630 67.4 42 36 0 3.6 4 2-9 20001101 20111212 284-326      
20190629 67.6 13 0 0 2.8 3 2-4 00101111 10101112 287-328      
20190628 68.1 28 23 0 3.5 4 2-7 21001111 22111121 288-346      
20190627 67.0 0 0 11 3.1 3 0-5 11001111 22011211 315-365      
20190626 68.0 11 0 11 4.8 5 2-6 21221101 22321211 321-385      
20190625 67.9 15 11 12 3.0 3 2-5 10011011 *****011 298-341      
20190624 67.9 29 24 24 4.3 4 2-6 22011111 ******** 288-330      
20190623 67.2 23 11 0 2.1 2 0-5 00011100 ******** 286-331      
20190622 66.4 12 0 0 3.3 3 0-6 12110100 ******** 318-391      

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]