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
20200218 71.0 11 0 0 13.5 14 5-22 13423333 13422223 344-408      
20200217 70.7 0 0 0 6.5 6 3-15 11111133 11211222 292-362      
20200216 70.5 0 0 0 2.4 2 0-7 21010000 11110211 312-363      
20200215 70.6 11 0 0 3.9 4 0-9 10022111 00033212 311-354      
20200214 71.3 0 0 0 1.9 2 0-6 21000001 21000111 339-358      
20200213 71.2 0 0 0 2.0 2 0-3 00010001 00111111 314-354      
20200212 71.6 0 0 0 3.8 4 0-7 22120001 11121211 345-443      
20200211 71.1 0 0 0 5.3 5 0-15 33100011 22210110 345-450      
20200210 70.2 12 0 0 4.4 4 2-6 21211011 11311222 346-443      
20200209 70.6 11 0 0 6.5 6 3-15 32111222 21221211 403-463      
20200208 72.0 11 11 0 5.6 6 4-12 31112111 21122111 441-568      
20200207 70.8 14 11 0 13.0 13 5-18 33313333 33323233 540-650      
20200206 71.3 23 0 0 14.6 15 3-27 13433243 13533342 346-651      
20200205 70.6 0 0 0 4.4 4 2-7 12121110 11221210 338-397      
20200204 70.3 11 0 0 5.6 6 3-12 22111123 22121212 334-354      
20200203 72.1 0 0 0 3.8 4 2-7 22100110 12311111 346-399      
20200202 72.2 0 0 0 5.4 5 2-9 21110122 11201222 348-453      
20200201 72.5 11 0 11 5.0 5 2-9 10112222 10012212 348-456      
20200131 73.9 24 11 11 7.0 7 3-22 24221101 24121111 425-545      
20200130 74.1 39 13 11 11.5 12 6-18 23222333 12322322 370-473      
20200129 74.3 31 12 11 8.1 8 2-18 33210222 33221222 329-433      
20200128 74.2 35 28 11 4.4 4 0-15 11100013 01100113 286-351      
20200127 72.9 42 26 12 1.5 2 0-4 01100000 11200121 299-308      
20200126 74.7 48 18 18 2.8 3 0-6 11001210 11001211 285-305      
20200125 72.7 32 16 14 2.3 2 0-9 02100000 13101110 289-311      
20200124 71.0 26 13 12 1.5 2 0-4 10000000 00101211 285-291      
20200123 70.8 34 11 0 3.6 4 0-9 22000011 22011111 298-327      
20200122 71.9 0 0 0 6.1 6 2-15 22111013 12222002 315-340      
20200121 70.5 23 12 0 5.3 5 0-12 00111322 00112221 277-331      
20200120 71.2 12 0 0 0.5 0 0-2 00000000 00100110 279-314      
20200119 71.6 23 11 0 0.6 1 0-3 01000000 02010101 281-349      

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]