GB2RS Propagation News
Propagation News – 21 May 2023
After last week’s NOAA prediction that we would have settled geomagnetic conditions all week, it seems they were right! The Kp index never got above three – a miracle given the recent disruption due to coronal mass ejections and coronal holes. The proton flux from the Sun has declined as well. However, an M9 solar […]
Propagation News – 14 May 2023
Our topsy-turvy world of HF propagation continued last week with geomagnetic storms, solar flares, coronal mass ejections, proton events and more. The good news is that the solar flux index was at 170 by Thursday, but the bad news was that we had two episodes where the Kp index hit five and there were at […]
Propagation News – 7 May 2023
Next week will see the Sun presenting with four large sunspots groups that are rotating to be Earth-facing, so look out for trouble. Just as the UK weather takes a turn for the worse, we expect the space weather to be unpredictable too! Active regions 3293, 3294, 3296 and 3297 look dark and are looming […]
Propagation News – 30 April 2023
What a busy week we’ve just had! It started with a massive G4 geomagnetic storm that saw the Kp index rise to eight with aurora visible as far south as Cornwall and the Channel Islands. This was due to a coronal mass ejection from a filament eruption on 21 April. The 6m band came to […]
Propagation News – 23 April 2023
We had a surge in sunspot activity over the last week, pushing the solar flux index up to a maximum of 178, although it subsequently declined to 147. Solar flare activity was quite subdued after a frantic period from the 13 to the 15 April that saw 40 C-class flares and two M-class flares erupt. […]
Propagation News – 16 April 2023
A news item this week suggested that the peak of solar cycle 25 could be coming earlier than expected. According to a paper in Frontiers in Astronomy and Space Sciences, by solar scientist Dr Scott Macintosh, solar maximum may now be coming between late 2023 and mid-2024. So, make the most of the higher Solar […]
