GB2RS Propagation News
Propagation News – 1 October 2023
Another week of disrupted solar and geomagnetic conditions saw the Kp index go up and MUFs come down. A period of minor G1 geomagnetic storming was observed on Tuesday the 26 September thanks to an enhanced solar wind stream containing a long-duration southward-facing Bz component. If the solar wind’s Bz magnetic field points south, it […]
Propagation News – 24 September 2023
Last week’s space weather was very disturbed from a geomagnetic point of view. The Kp index hit 6.67 on the 19 September, spawning reports of visible aurora from around the UK once again. This was the result of a coronal mass ejection passing Earth, which caused a period of strong G3 storming very early that […]
Propagation News – 17 September 2023
While our terrestrial weather this week was variable, it seems our space weather was equally unsettled! We warned last week that it wouldn’t take much to cause the Kp index to rise and on Tuesday a coronal mass ejection, or CME, hit the Earth sending the Kp index to 5.67. The Bz component of the […]
Propagation News – 10 September 2023
The propagation team was caught out last week by two coronal mass ejections, or CMEs, that came off the edge of the Sun. The arrival of those CMEs on the 3 September eventually pushed the Kp index to 5.67. In its report, Spaceweather.com said that it was possible that a CME arrived on the 2 […]
Propagation News – 3 September 2023
We had another week of relatively settled solar conditions. The Kp Index never really got above three and the Solar Flux Index flattened to be below 140. Solar flares were nominal with only minor C-class events occurring and with no Earth-directed coronal mass ejections. The solar wind speed remains low as does its density. The […]
Propagation News – 27 August 2023
Last week saw plenty of DX being worked, thanks to quiet geomagnetic conditions and a seasonal change to a more autumnal ionosphere. Although we are still in August, there are signs that the ionosphere is moving away from its summer doldrums as its chemical composition changes to more monatomic species, which ionise more easily. Another […]
