Bulletin: Current Conditions

28 February 2024

Solar activity is low with the background X-ray flux at lower C-class levels. Several C-class flares were observed during the past 24 hours. There are six sunspot regions on the visible solar disk with simple to complex magnetic configurations. The solar wind speed is at background to slightly elevated levels with speed ranging between 380-450 km/s due to the waning effects of high-speed stream (HSS) effects from coronal hole (CH01/-). There are a few filaments on the visible solar disk that show slight movement and will be monitored for any Earth-directed lift-offs. Geomagnetic conditions were at quiet to unsettled levels with an isolated G1/minor storm interval. Local HF working frequencies are near monthly predicted values.

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Daily Conditions

Date and Time (UT)foF2 (MHz)hmF2 (km)T indexAp
Grahamstown2024-02-28 15:0010.750285.800143
Hermanus2024-02-28 15:0010.950288.872136
Planetary Ap2024-02-28 14:346


Predicted SANSA monthly T-Index for February 2024: 90