GB2RS Propagation News
Propagation News – 28 July 2024
We had yet another week of high sunspot numbers and low geomagnetic disturbances, but will it last? We dodged a bullet last week after a weak coronal mass ejection, or CME, on Tuesday 23 August failed to generate a geomagnetic storm. This was from a faint halo CME observed on Sunday, which was much weaker […]
Propagation News – 21 July 2024
We had another great week in terms of HF propagation. The solar flux index was at a remarkable 224 on Thursday, the 18th, and the Kp index had been consistently in the ones and twos all week. It doesn’t get much better than this, HF-wise, although it’s a shame it’s not autumn with the associated […]
Propagation News –14 July 2024
We had another week of reasonably settled geomagnetic conditions and a high solar flux index. The solar flux index was at 214 on Thursday 11 July, while the Kp index has been around 2 to 3 all week. That’s generally good news for HF. However, a small coronal hole is now facing Earth and a […]
Propagation News – 7 July 2024
After a rough spot last weekend, the Sun has since behaved itself, allowing HF propagation to get back to normal. To recap, the Kp index hit 7.67 on Friday 28 June, thanks to incoming plasma from a coronal mass ejection. For a time, it looked like we might have a repeat performance of the 10 […]
Propagation News – 30 June 2024
We had another lucky week with quite a high solar flux index, low Kp geomagnetic numbers, few solar flares and no coronal mass ejections, or CMEs, of note. In fact, you couldn’t ask for better! But is that all about to change? With nine active solar regions on the Sun’s surface and the return of […]
Propagation News – 23 June 2024
We had a relatively quiet week, with the Sun generally being settled. There were coronal mass ejections, but they were on the far side of the Sun and not Earth-directed. There were no X-class flares, although we did have a few C- and M-class events. The solar flux index declined to 167 but has since […]
