MinYoongi Posted February 9 Share Posted February 9 9 minutes ago, SpaceWeather5464 said: 50 MEV close to hitting the 10 MEV warning threshold this hasn’t happened in years. what does that mean? Link to comment Share on other sites More sharing options...
SpaceWeather5464 Posted February 10 Share Posted February 10 22 minutes ago, MinYoongi said: what does that mean? 50 MEV is more energetic. And it’s not common seeing it this high. Link to comment Share on other sites More sharing options...
Isatsuki San Posted February 10 Share Posted February 10 (edited) Hace 3 minutos, SpaceWeather5464 dijo: 50 MEV es más energético. Y no es común verlo tan alto. Does it mean that we are going to reach an S3? Edited February 10 by Isatsuki San 1 Link to comment Share on other sites More sharing options...
SpaceWeather5464 Posted February 10 Share Posted February 10 21 minutes ago, Isatsuki San said: Does it mean that we are going to reach an S3? Only time will tell. Link to comment Share on other sites More sharing options...
Popular Post mozy Posted February 12 Popular Post Share Posted February 12 (edited) Did it just shoot off another X-flare on the farside? That's one fast CME 🙄 Looks super impressive https://streamable.com/1jyezz Edited February 12 by mozy 4 1 Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 4 minutes ago, mozy said: Did it just shoot off another X-flare on the farside? That's one fast CME 🙄 Looks super impressive i dont see🤔 where? Link to comment Share on other sites More sharing options...
mozy Posted February 12 Share Posted February 12 1 minute ago, tniickck said: i dont see🤔 where? Check my link that I edited into the comment I don't know if I'm exaggerating but I think that's the most impressive CME I've seen on SUVI this solar cycle so far. It looks so fast lol Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 21 minutes ago, mozy said: Did it just shoot off another X-flare on the farside? That's one fast CME 🙄 https://streamable.com/dns7ps this website is banned in Russia Link to comment Share on other sites More sharing options...
mozy Posted February 12 Share Posted February 12 Just now, tniickck said: this website is banned in Russia Oh lol, well check SUVI yourself then I guess Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 oh now i see extremely fast, mindblowing 1 Link to comment Share on other sites More sharing options...
MinYoongi Posted February 12 Share Posted February 12 6 minutes ago, mozy said: Oh lol, well check SUVI yourself then I guess Thanks for the video, much better quality than suvi. I dont know if it was 3575, was it that much south? Altough its the most likely candidate (that we know of) how fast is "extremely fast" appromaxely? Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 4 minutes ago, MinYoongi said: Thanks for the video, much better quality than suvi. I dont know if it was 3575, was it that much south? Altough its the most likely candidate (that we know of) how fast is "extremely fast" appromaxely? you can see the filament flying away on insane speed, never seen this before Link to comment Share on other sites More sharing options...
mozy Posted February 12 Share Posted February 12 6 minutes ago, MinYoongi said: Thanks for the video, much better quality than suvi. I dont know if it was 3575, was it that much south? Altough its the most likely candidate (that we know of) how fast is "extremely fast" appromaxely? No idea, not my strongest point Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 (edited) and we getting type iv emission from the farside. must be the second carrington event incoming proton event 50 and 100 mev are jumping right now Edited February 12 by tniickck 1 Link to comment Share on other sites More sharing options...
MinYoongi Posted February 12 Share Posted February 12 25 minutes ago, tniickck said: and we getting type iv emission from the farside. must be the second carrington event incoming proton event 50 and 100 mev are jumping right now I remember we had an S1 storm from the. Farside 2023 or 2022 that’s pretty rare right? 30 minutes ago, mozy said: No idea, not my strongest point lol same Why is 10mev not moving @tniickck ? 1 Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 3 minutes ago, MinYoongi said: I remember we had an S1 storm from the. Farside 2023 or 2022 that’s pretty rare right? 13 March 2023 and 16 or 17 July 2023, exactly. Proton events from farside happen only when really strong flares and CMEs occur 2 Link to comment Share on other sites More sharing options...
MinYoongi Posted February 12 Share Posted February 12 1 minute ago, tniickck said: 13 March 2023 and 16 or 17 July 2023, exactly. Proton events from farside happen only when really strong flares and CMEs occur Thank you for reminding me about the correct date, it’s nice to know I’m somewhat remembering it right! Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 by my calculations the ejecta passed about 1.4 Sr in 12 minutes. This corresponds to the speed about 2700 km/s 2 Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 such a big event and dead silence on the forum😁 2 Link to comment Share on other sites More sharing options...
Philalethes Posted February 12 Share Posted February 12 2 hours ago, MinYoongi said: how fast is "extremely fast" appromaxely? Assuming a mostly transverse component, I'm estimating ~13 Solar diameters in 2 hours 50 minutes from C3 imagery, which would be ~1800 km/s. 1 hour ago, tniickck said: by my calculations the ejecta passed about 1.4 Sr in 12 minutes. This corresponds to the speed about 2700 km/s I think it's better to use longer time periods, because even small variations in time on those small scales can cause a big difference in the outcome. The proton response seems to be very strong though, significantly stronger than the X3.3 so far judging by the ≥100 MeV ones. 3 Link to comment Share on other sites More sharing options...
tniickck Posted February 12 Author Share Posted February 12 5 minutes ago, Philalethes said: I think it's better to use longer time periods, because even small variations in time on those small scales can cause a big difference in the outcome. Got it. thanks! S2 from the farside. i have never seen this before 1 Link to comment Share on other sites More sharing options...
willow Posted February 12 Share Posted February 12 3 hours ago, tniickck said: this website is banned in Russia works with vpn Link to comment Share on other sites More sharing options...
Philalethes Posted February 12 Share Posted February 12 17 minutes ago, tniickck said: Got it. thanks! For what it's worth I also just measured the distance taken on C2 between 06:36Z and 06:48Z, which is maybe what you did too, and I also get a total of 1.4 Solar diameters in that time (rather than radii, I'm assuming you also meant diameters) for the same speed as you did, ~2700 km/s. I'm not sure why it seems to be moving that fast when measured that early though. Maybe it's because the first light we see at 06:36Z is from the sheath moving sideways out from the eruption and thus misleading. If I instead use the center of the ellipse representing the shock around the apex of the flux rope itself (the "smoke ring" you see in many "clean" CMEs) at 06:48, and I take the time of the eruption of the flux rope itself as seen on SUVI at around 06:27, I get ~1.63 Solar diameters in ~21 minutes, corresponding to ~1800 km/s again. Since that checks out with the current C3 estimate I'd think that would be a better way to estimate from early imagery. That's of course still assuming there's no angle to it, but since we're now ~3-4 days past it rotating out of view there should be some, so the true speed is probably a bit faster than this too. Actually, we can probably use the ellipse to get an idea of this angle as well, at least making a simplistic assumption that it's a rotated circle (which it probably isn't); that way we can simply take the inverse sine of the semi-minor axis divided by the semi-major axis, which I measure at approximately 0.33 and 1 respectively in the 06:48Z image, for an angle of ~20°. Taking the cosine of this we see that we'd be seeing ~94.3% of the true speed from our perspective, so dividing the estimate of ~1800 km/s by that we get ~1900 km/s instead. 1 hour ago, tniickck said: S2 from the farside. i have never seen this before Yeah, this proton event was pretty huge; I've never seen the ≥100 MeV protons reach 1 pfu either. 2 Link to comment Share on other sites More sharing options...
hamateur 1953 Posted February 12 Share Posted February 12 (edited) Was expecting protons to tail off!!! Haha. Wow!! Had to be 3575. It was high-latitude and seems even higher when it shot that filament. Edited February 12 by hamateur 1953 Checked mozy post video Link to comment Share on other sites More sharing options...
Orchidfan Posted February 12 Share Posted February 12 I extracted some pictures out of the SUVI 304A video 1 2 Link to comment Share on other sites More sharing options...
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