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Level S4 solar radiation event

swpc.noaa.gov

171–180 of 205 posts

Re: Level S4 solar radiation event

#171

Our network router in our radio station started acting crazy at 22:00:40 Europe/Ljubljana time. Uptime monitoring via HTTPS reported downtime for 5 minutes, but our radio archive that records audio over LiveWire recorded some bitcrushing effects for 5 minues. Maybe our Mikrotik hEX was flipping some bits? Recording from the radio archive: https://splet.4a.si./dir/solar.mp3

Sounds like a dialup modem at about 3:30 :)

How sure are we the aliens aren't trying to dial in?

Re: Level S4 solar radiation event

#172
post #85

Earlier quoted context omitted.

We are at kp 8.67. The Carrington event was a kp 9

Have we been having these more recently? I don't ever recall seeing these in the news so frequently. It feels like there are several a year now. A decade ago, never. And I also never remember seeing Aurora at my latitudes. Do we just have better sensing now, or is there some cycle on a period longer than a few years? Or maybe I'm crazy and just never noticed.

> Have we been having these more recently?

Yes, for suitable values of "recently".

> And I also never remember seeing Aurora at my latitudes.

How old are you?

If you're younger than say your mid-40s you probably won't remember the early 80s, which is the last time we had a solar maximum that really came to anything.

Solar activity rises and falls on an 11-year cycle, and right now we're experiencing quite a peak. The previous three, peaking in 2014, 2011, and 1989 were a bit of a bust.

There was a massive peak in 1979 and I can remember my dad showing me the aurora when I was about six or seven - it seemed to be present most nights over the winter. That was also around the time of the CB Radio craze, where atmospheric conditions were such that you could use "skip" - bouncing radio signals off the highly-charged ionosphere - to talk to people hundreds of miles away as if they were just down the road, even on the comparatively high frequencies that CB used. There was a bit of a peak in the late 80s, and some good RF propagation too, as well as some incredible aurora - although the big one I remember was in about the end of 1991, early 1992.

We had absolutely blistering hot summers followed by really cold and snowy winters, too, kind of like we're having at the moment.

If the solar cycles have a longer repeating cycle of intensity on the scale of a hundred years or so (and it looks a bit like they do) then the next solar maximum in about 2036 is going to be even bigger.

Re: Level S4 solar radiation event

#173
Just had my first uncorrectable memory read error on our servers in 10 years or so today (in Sacramento). I'd like to think it's related because the alternative (buying new DIMMs) is too horrifying to contemplate

Re: Level S4 solar radiation event

#174
Well I didn't see anything last night (In Eastern Canada), probably because there was too much light in the suburb. Now the aurora "area" turns back to Europe and Asia, I hope you guys enjoy it!

Judging by this picture: https://services.swpc.noaa.gov/images/animations/ovation/nor... , I think in a few hours the whole North Europe can see it very clearly.

Re: Level S4 solar radiation event

#175
post #30
post #5

Nice, you can already see some solar flares in Austria again. https://www.foto-webcam.eu/webcam/kleinfleisskees/ https://www.foto-webcam.eu/

Oh wow! https://www.foto-webcam.eu/webcam/ederplan/2026/01/20/0000 And up at the top right, left to "Latest" you can skip the time back and forth at 10 minute intervals. And then jump back like 10 images, what a beauty. You can even see Starlink satellites https://www.foto-webcam.eu/webcam/ederplan/2026/01/19/1820

Not to be a buzzkill but I think those are planes. The stars show trails so these must be long exposures, and trails of similar length appear to be going in all different directions, eg: https://www.foto-webcam.eu/webcam/ederplan/2026/01/19/1820

Re: Level S4 solar radiation event

#176

Our network router in our radio station started acting crazy at 22:00:40 Europe/Ljubljana time. Uptime monitoring via HTTPS reported downtime for 5 minutes, but our radio archive that records audio over LiveWire recorded some bitcrushing effects for 5 minues. Maybe our Mikrotik hEX was flipping some bits? Recording from the radio archive: https://splet.4a.si./dir/solar.mp3

Yes, sounds similar to a corrupted digital audio. Replace hex with something more robust, at least with an actual metallic case.

Yes, that is planned. As soon as we get more money (:

Re: Level S4 solar radiation event

#177
Might be a coincidence but for the first time last night, my son's sleep projector[0] didn't stop after 1h like it does normally.

I guess this could be related to it? (we are in Montreal)

I doubt these toys are protected from those kinds of events.

[0] https://www.amazon.com/Fisher-Price-Settle-Sleep-Projection-...

Re: Level S4 solar radiation event

#179

Well I didn't see anything last night (In Eastern Canada), probably because there was too much light in the suburb. Now the aurora "area" turns back to Europe and Asia, I hope you guys enjoy it! Judging by this picture: https://services.swpc.noaa.gov/images/animations/ovation/nor ... , I think in a few hours the whole North Europe can see it very clearly.

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