4 minutes ago, JacupV said:

There was no flare reported. It is a massive filament eruption and lift offs. There has been 3 in the past 4 hours give ore take. South east limb. And the other two off the west limb. Not flares have been reported on any satellite 

can a filament cause a proton storm and be so fast?

I've had the SUVI 304 Ang going all day as it updates itself, and I saw the little flash (W limb, one frame before the blast) at 17:54 UTC that was then followed by the eruption. Then I saw the blast following it, Whoah!

19 minutes ago, jensei said:

can a filament cause a proton storm and be so fast?

Yes. Protons are light particles. That’s why there is a huge spike in S levels and not a single solar flare even worth looking at because there was no X-ray or radio absorption associated with any of it. Now we are polar capped so its effects radio waves but that’s something a bit different 

Edited November 21, 2024Nov 21 by JacupV

18 minutes ago, jensei said:

can a filament cause a proton storm and be so fast?

we just didnt register any significant x ray flux because the flare occured behind the limb

Just now, JacupV said:

Yes. Protons are light particles. That’s why there is a huge spike in S levels and not a single solar flare even worth looking at because there was no X-ray or radio absorption associated with any of it. 

yh i know the protons can be so fast but not the plasma. this looks like the 2003 cme from the x 45

28 minutes ago, Cokelley said:

Okay that makes sense because it is a massive CME and incredibly fast (judging by the chronograph alone)... amazing !! It looks like it rattled that prominence near the sw limb also @hamateur 1953

It looks like STIX is in place to read the flare so hopefully we just have to wait a couple of hours to see how big it really was. 

https://datacenter.stix.i4ds.net/view/ql/lightcurves

neither parker solar probe nor solar orbiter with stix are in a favorable position to pick up the possbile flare sadly

4 minutes ago, MinYoongi said:

neither parker solar probe nor solar orbiter with stix are in a favorable position to pick up the possbile flare sadly

hm but what couldve caused it then?

4 minutes ago, MinYoongi said:

neither parker solar probe nor solar orbiter with stix are in a favorable position to pick up the possbile flare sadly

Can STEREO-A read X-Ray flux to perhaps give us more information?

31 minutes ago, JacupV said:

There was no flare reported. It is a massive filament eruption and lift offs. There has been 3 in the past 4 hours give ore take. South east limb. And the other two off the west limb. Not flares have been reported on any satellite 

I think this was a flare-related event, looks a bit too fast for only being a filament

2 minutes ago, mozy said:

I think this was a flare-related event, looks a bit too fast for only being a filament

yh thats what id say too, but its strange that we dont have any x ray flux spikes at parker solar probe or solar orbiter

3 minutes ago, jensei said:

yh thats what id say too, but its strange that we dont have any x ray flux spikes at parker solar probe or solar orbiter

 

1 minute ago, mozy said:

 

Whatever it is. Going to have to wait and see lol. Imagines are still trying to comeback… sadly.. my area is experiencing its first winter storm so I’m screwed on any type of immediate viewing. Have to see how everything plays out. The entire event is still trying to unfold as more stuff looks to be happening on LASCO at the moment 

Is it the protons that are causing the "snow fall" effect on Lasco (the white specs that are all over the view after the event)?

9 minuten geleden, NightSky zei:

Is it the protons that are causing the "snow fall" effect on Lasco (the white specs that are all over the view after the event)?

Yes.

Like this. 👇🏻 This image comes from the SWL help-section about solar radiations storms/SPE.

Edited November 21, 2024Nov 21 by Malisha Reuvekamp
Wrong word

I guess this one was about moderate then

15 minuten geleden, NightSky zei:

I guess this one was about moderate then

Haha.

I guess previous example images belong to this flare. 👇🏻🤣

Edited November 21, 2024Nov 21 by Malisha Reuvekamp
grammar

Yeah that one looks like it was a doozy... 😮 

Actually. This event brings up a question. When protons hit like that from a, let’s just call it an event lol what type of effects would it have if any on any ongoing NL? That was a big spike in protons. I thought I remember reading somewhere that SPE’s (solar proton events) don’t necessarily enhance NL pushing them further south like BZ and winds would.. But they can make for much taller light pillars. Thus making them still visible slightly further south on the latitudes. Am I remembering that correctly? Or no? 

1 hour ago, SpaceWeather5464 said:

The last GLE was on May 11, 2024.

Can you provide the information or site the archive link for what you have mentioned here?

When I look at the archive on SWL  I only see that >10meV spiked to s1 and s2 levels on May 11th but I believe you need the >100meV spike in order to have a GLE.

I just wanted to check, thank you ! 

The series of events. There was a filament eruption just over the eastern limb of the Sun at around 12Z. There was then likely an eruption from region 3889 over the western limb of the Sun at around 18Z. 

I’m sure we’ve all been watching SDO/AIA images… If for some reason you haven’t… Well... Say goodbye to the next few hours of your life LOL! For Radio Flux being in the low 160’s it was definitely an active day. Definitely not flare wise. Lots of filament movements and filament eruptions. This is why I still say it wasn’t a flare more or less a VERY big filament eruption. SDO has it in the very last frame as the video stops. I went back to Monday the 18th to see what was exactly going over the limb. From east to west AR3889 was first over the limb proceeded by AR3892, AR3897 in a straight east to west line. Above AR3892 for whatever reason was AR3895… Looking at SDO images it pretty clear it’s just on the limb and AR3889 would be to far ahead for that. Leaving either AR3892, AR3895 or AR3897… AR3892, 3895 matches more of were this eruption occurred from.. If that would’ve been an actual flare I would definitely think satellites would’ve been able to register that better as it’s not exactly on the backside and SDO seen it just fine.
 

Either way. Any actual CME should be well ahead of earth from that. There’s a few other smaller filament eruptions on SDO/AIA 304 images also that actually might have some CMEs associated with it that might be slightly closer to being earth facing but those don’t look crazy promising either.. Very possible these filament liftoffs and eruptions might keep going a bit longer as things are definitely getting stirred up. Again tho… I don’t see how it could be a double digit X flare… radio flux being at 160 doesn’t support that. Only time literally in history has a double digit X happened with a 160.. and that was the biggest ever flare and that data is so old we can hardly trust it lol. Look back at all the other top 50 flares and everything that’s a double digit X has happened with radio flux near 270… 

4 hours ago, SamDieGurke said:

Can STEREO-A read X-Ray flux to perhaps give us more information?

In this paper the information from STA's EUVI was used to reconstruct the fluxes of flares beyond the limb, so it is possible, but the methodology isn't entirely straightforward. You could always contact the lead author and ask if they'd be so kind as to make en estimate, heh.

It was also from that paper the extreme 2012 CME that missed us was estimated to have originated from what was at most an ~X3.5.

It's very possible that it wasn't even visible from STA in this case though, seems to have been a bit too far beyond the limb by the looks of it.

Edited November 22, 2024Nov 22 by Philalethes
probably not

So, can some smart person explain why the proton flux keeps climbing?

With X-ray flux it usually spikes and then comes down - sometimes fast, sometimes gradually. It;s been several hours now and the proton flux is still going up.

What is the fundamental difference between the two, or, is this because it was so far on the limb?

11 minutes ago, NightSky said:

So, can some smart person explain why the proton flux keeps climbing?

With X-ray flux it usually spikes and then comes down - sometimes fast, sometimes gradually. It;s been several hours now and the proton flux is still going up.

What is the fundamental difference between the two, or, is this because it was so far on the limb?

Yeah now it has reached S2 (moderate) levels.

4 minutes ago, NightSky said:

So, can some smart person explain why the proton flux keeps climbing?

With X-ray flux it usually spikes and then comes down - sometimes fast, sometimes gradually. It;s been several hours now and the proton flux is still going up.

What is the fundamental difference between the two, or, is this because it was so far on the limb?

It’s still basically a CME. So it will impact and rise until it reaches its peak then fall which depending how big the eruption was. Only thing still rising is 10MeV which should start going back down soon-ish as the 500MeV is almost back down and 100meV is already dropping.