GB2RS Propagation News
Propagation News – 15 November 2020
The Sun really shone last week, in more ways than one. Large sunspot group 2781 pushed the solar flux index to 91 with a sunspot number of 40 at the weekend, a figure that we haven’t seen for many years. This was coupled with quiet geomagnetic conditions with a maximum Kp index of two, but […]
Propagation News – 8 November 2020
Sunspots are a bit like buses. You wait forever and three come along at once! Last week we had active regions 2778 and 2779, which pushed the solar flux index up to 88. This week we have sunspot region 2781, which is a monster. At the time of writing, this region had pushed the SFI […]
Propagation News – 1 November 2020
Last week saw more evidence that Solar Cycle 25 is definitely under way. Large sunspot group 2778 caused the solar flux index to rise to 82. And it then got even better when it was joined by active region 2779, which pushed the SFI up further to 88 on Thursday. This is the first time […]
Propagation News – 25 October 2020
The last week was dominated by sunspot region 2776, which pushed the solar flux index to 75. Geomagnetically, it was a mixed bag though, with the Kp index peaking at four on Wednesday, but otherwise being relatively quiet and showing zero on Tuesday. The sunspots, plus the October seasonal enhancement, meant that the HF bands […]
Propagation News – 18 October 2020
We had a little flurry of solar activity last week, but it didn’t amount to much. Region 2775 decayed to a spotless plage and didn’t contribute at all after Tuesday, the 13th. A new region began forming while on the far side of the Sun and has turned into view off the east limb. The […]
Propagation News – 11 October 2020
We had another week without a single sunspot appearing on the solar surface. The only upside was that the solar wind was largely calm, which resulted in a settled ionosphere. The solar flux index remained pegged at 71 or 72, reminding us that although NASA says that Solar Cycle 25 has started, we are still […]
