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
20190318 70.0 35 17 13 2.6 3 2-4 01001110 11102111 330-382      
20190317 69.3 25 13 0 16.5 16 3-48 54432211 54543210 346-446      
20190316 69.5 22 0 0 10.6 11 4-32 12232224 12232223 369-464      
20190315 69.6 0 0 0 6.8 7 3-12 32211113 23311221 333-432      
20190314 70.1 12 0 0 6.6 7 2-15 01112123 02213212 310-348      
20190313 70.8 16 14 0 3.8 4 2-7 12100011 02200121 337-357      
20190312 70.7 0 0 11 6.6 7 3-15 21321111 11322211 330-403      
20190311 70.4 11 11 11 2.5 2 0-5 00111001 00121221 320-353      
20190310 71.1 11 11 11 3.5 4 0-9 22101000 23201111 344-451      
20190309 70.7 23 22 11 4.5 4 0-9 00112112 10112312 371-478      
20190308 71.8 15 11 11 3.9 4 0-9 21120001 20111121 364-447 1    
20190307 70.9 17 13 14 5.5 6 0-12 10002232 11103222 347-461      
20190306 72.5 27 21 17 6.6 7 3-15 12312122 11313221 349-551      
20190305 72.0 21 18 14 4.3 4 2-9 21011012 22111111 341-431      
20190304 70.9 36 34 0 6.5 6 3-12 13122112 12332312 348-448      
20190303 69.5 0 0 0 6.4 6 2-15 23111012 24121212 388-484      
20190302 69.4 0 0 0 12.1 12 6-27 43322322 33333311 448-558      
20190301 69.9 11 0 0 22.8 23 12-32 44343444 45432333 543-600      
20190228 70.1 0 0 0 22.9 23 7-39 43234453 43245343 470-611      
20190227 70.7 0 0 0 10.8 11 0-27 10113334 00113334 275-531      
20190226 70.6 0 0 0 1.9 2 0-4 10010101 10010110 313-346      
20190225 70.4 0 0 0 1.3 1 0-3 00100001 00111110 286-347      
20190224 70.5 0 0 0 1.3 1 0-4 00111000 00112100 291-346      
20190223 70.7 0 0 0 1.5 2 0-4 00000110 00002211 331-434      
20190222 71.2 0 0 0 3.3 3 0-7 20110011 10121121 370-484      
20190221 70.8 16 0 0 10.5 10 4-22 32423213 21423312 350-479      
20190220 71.0 37 22 0 2.6 3 0-6 00000112 00001212 271-405      
20190219 70.2 18 0 0 2.4 2 0-4 01100010 00201110 274-347      

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]