Sam Warfel Posted April 13, 2022 Share Posted April 13, 2022 2 minutes ago, MinYoongi said: Can you please explain that for dumb people? (me) The unit for the “strength” number is a measurement of how large an angle the AR draws out on the surface of the sun, so it seems to be an estimate of how big the colored area of the AR is. Link to comment Share on other sites More sharing options...
MinYoongi Posted April 13, 2022 Share Posted April 13, 2022 Just now, Orneno said: The unit for the “strength” number is a measurement of how large an angle the AR draws out on the surface of the sun, so it seems to be an estimate of how big the colored area of the AR is. So it is not an indication of how "strong" or "complex" the Region is? I'm still interested in the CME generated today. Pretty fast according to cactus, but ... i dont know how good/precise cactus is? Just now, MinYoongi said: So it is not an indication of how "strong" or "complex" the Region is? I'm still interested in the CME generated today. Pretty fast according to cactus, but ... i dont know how good/precise cactus is? TL;DR : Can it be a Dud when it comes around? Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted April 13, 2022 Author Share Posted April 13, 2022 Just now, MinYoongi said: So it is not an indication of how "strong" or "complex" the Region is? I'm still interested in the CME generated today. Pretty fast according to cactus, but ... i dont know how good/precise cactus is? If I’m not mistaken, CACTUS is pretty accurate Tf why is autocorrect being dumb Link to comment Share on other sites More sharing options...
MinYoongi Posted April 13, 2022 Share Posted April 13, 2022 Okay. Because in the Nasa model, the velocity didnt look like ~1800km/s. I'll link it so you guys can look at it. https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261 Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted April 13, 2022 Author Share Posted April 13, 2022 (edited) 17 minutes ago, MinYoongi said: Can it be a Dud when it comes around? It’s a possibility. 4 minutes ago, MinYoongi said: Okay. Because in the Nasa model, the velocity didnt look like ~1800km/s. I'll link it so you guys can look at it. https://iswa.gsfc.nasa.gov/IswaSystemWebApp/iSWACygnetStreamer?timestamp=2038-01-23+00%3A44%3A00&window=-1&cygnetId=261 I don’t know how to tell CME speed so I don’t know if that does or doesn’t look like 1800km/s Edited April 13, 2022 by Solarflaretracker200 Link to comment Share on other sites More sharing options...
Sam Warfel Posted April 13, 2022 Share Posted April 13, 2022 26 minutes ago, MinYoongi said: So it is not an indication of how "strong" or "complex" the Region is? Doesn’t appear to, just size Link to comment Share on other sites More sharing options...
MinYoongi Posted April 13, 2022 Share Posted April 13, 2022 Just now, Orneno said: Doesn’t appear to, just size Theres a description on the Page but to be really honest, it uses such big words and specific terminology that I cant even begin to understand it. Link to comment Share on other sites More sharing options...
Drax Spacex Posted April 13, 2022 Share Posted April 13, 2022 (edited) 31 minutes ago, MinYoongi said: So it is not an indication of how "strong" or "complex" the Region is? Here is the reference document. Discusses both strength and signature. These are not fundamental physical quantities but derived metrics quantifying the features described in the paper. http://jsoc.stanford.edu/data/farside/explanation.pdf Edited April 13, 2022 by Drax Spacex wordsmithery 1 Link to comment Share on other sites More sharing options...
MinYoongi Posted April 13, 2022 Share Posted April 13, 2022 1 minute ago, Drax Spacex said: Discusses both strength and signature. These are not fundamental physical quantities but derived metrics quantifying the features described in the paper. http://jsoc.stanford.edu/data/farside/explanation.pdf Maybe it's the language barrier, but can you maybe explain this a bit easier-to-understand? I have such a hard time wrapping my mind around this whole thing. Read this a few times now, I'm sorry. Link to comment Share on other sites More sharing options...
Drax Spacex Posted April 13, 2022 Share Posted April 13, 2022 I would not be so bold to claim that I understand the paper entirely. I was mainly answering the question what is "strength" using dimensional analysis by looking at the units (microhemispheres) which indicates an angular size - same as used to describe sunspot size. I presume an automated image analysis calculates the area of the Strong Active Region (SAR) and calls it "strength." 1 Link to comment Share on other sites More sharing options...
MinYoongi Posted April 13, 2022 Share Posted April 13, 2022 Just now, Drax Spacex said: I would not be so bold to claim that I understand the paper entirely. I was mainly answering the question what is "strength" using dimensional analysis by looking at the units (microhemispheres) which indicates an angular size - same as used to describe sunspot size. I presume an automated image analysis calculates the area of the Strong Active Region (SAR) and calls it "strength." Ah. Yeah so pretty much what Orneno said about Area. I saw something with sound helioseismology too on the stereo/gong farside maps but its too specific for me to understand. What do you Guys think of 2975 looking at EUVI? 47 minutes ago, Solarflaretracker200 said: It’s a possibility. I think it looks pretty huge in euvi but maybe its post eruption arcades? Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted April 13, 2022 Author Share Posted April 13, 2022 6 minutes ago, MinYoongi said: I think it looks pretty huge in euvi but maybe its post eruption arcades? Maybe- Wouldn’t be surprised Link to comment Share on other sites More sharing options...
MinYoongi Posted April 13, 2022 Share Posted April 13, 2022 13 hours ago, 3gMike said: Looking on Stereo the region is not particularly bright, so probably not very active. I think that the brighter patch on the trailing edge could possibly even be the old AR2976. Btw i think you encircled an area thats already visible on the earth facing disc? Look at the coronal hole Link to comment Share on other sites More sharing options...
Sam Warfel Posted April 14, 2022 Share Posted April 14, 2022 50 minutes ago, MinYoongi said: Btw i think you encircled an area thats already visible on the earth facing disc? Look at the coronal hole Yes, I think that’s the 2990 area. Check out these massive bright loops! Is this a glimpse of the possibly large returning 2975? I know it’s a long ways behind even the STEREO limb still, but those loop stand so high off the surface we can see them from pretty far around the corner. 1 Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted April 14, 2022 Author Share Posted April 14, 2022 8 minutes ago, Orneno said: Yes, I think that’s the 2990 area. Check out these massive bright loops! Is this a glimpse of the possibly large returning 2975? I know it’s a long ways behind even the STEREO limb still, but those loop stand so high off the surface we can see them from pretty far around the corner. What do you think it is?? AR2975? Link to comment Share on other sites More sharing options...
MinYoongi Posted April 14, 2022 Share Posted April 14, 2022 36 minutes ago, Orneno said: Yes, I think that’s the 2990 area. Check out these massive bright loops! Is this a glimpse of the possibly large returning 2975? I know it’s a long ways behind even the STEREO limb still, but those loop stand so high off the surface we can see them from pretty far around the corner. Yeah. But like i said, could those be post eruption arcades? Or what exactly do/could they indicate? Magnetically complexity? Ive read the region will start turning to the limb on saturday. What do you think? Longer? 27 minutes ago, Solarflaretracker200 said: What do you think it is?? AR2975? I strongly think so Link to comment Share on other sites More sharing options...
Sam Warfel Posted April 14, 2022 Share Posted April 14, 2022 5 minutes ago, MinYoongi said: Ive read the region will start turning to the limb on saturday. What do you think? Longer? The STEREO limb, maybe, not the Earth-limb. 35 minutes ago, Solarflaretracker200 said: What do you think it is?? AR2975? Yes I think so 1 Link to comment Share on other sites More sharing options...
MinYoongi Posted April 14, 2022 Share Posted April 14, 2022 Just now, Orneno said: The STEREO limb, maybe, not the Earth-limb. Yes I think so But Stereo is not that Far from earth.. I read on the Farside-Map Page 5 Days from Limb. Do you Agree with that? Someone on Twitter wrote as early as Saturday or something along those lines. I still try to figure out how long before we can see it on SDO on our Limb + How many days until somewhat geoeffective Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted April 14, 2022 Author Share Posted April 14, 2022 Well well well this is getting exciting. But I’m still going to wait until it’s on the limb to get actually excited. If that makes sense. 2 hours ago, Orneno said: Doesn’t appear to, just size So it’s size now I guess is 4395. that good I suppose? Link to comment Share on other sites More sharing options...
MinYoongi Posted April 14, 2022 Share Posted April 14, 2022 Do you remember the one big Farside Region we had? How big was that again? Wasnt it around 6k in strength? Link to comment Share on other sites More sharing options...
Sam Warfel Posted April 14, 2022 Share Posted April 14, 2022 6 minutes ago, MinYoongi said: Do you remember the one big Farside Region we had? How big was that again? Wasnt it around 6k in strength? Idk, what I do remember was that it wasn’t worth the hype 😉 Link to comment Share on other sites More sharing options...
MinYoongi Posted April 14, 2022 Share Posted April 14, 2022 Just now, Orneno said: Idk, what I do remember was that it wasn’t worth the hype 😉 Yep. That was what i was trying to say 🥺🥺 1 Link to comment Share on other sites More sharing options...
3gMike Posted April 14, 2022 Share Posted April 14, 2022 9 hours ago, MinYoongi said: Btw i think you encircled an area thats already visible on the earth facing disc? Look at the coronal hole I referred to yesterday's synoptic map Using Coronal Hole 75 as a reference I believed that the two leading spots were ARs 2988 and 2989. Those spots were separated by about 39 degrees (equivalent to 3 days rotation, so it seemed reasonable that the circled area could be AR2975 returning. Checking again I can see that the higher spot is too high . That means that the area I circled was actually AR 2989. Subsequently, during the day, a new AR to the west of AR 2989 was identified as AR2990, so that probably developed from the faint faculae. I agree that AR2975 is still behind the limb on Stereo. Link to comment Share on other sites More sharing options...
MinYoongi Posted April 14, 2022 Share Posted April 14, 2022 Another far side CME it seems... and now the X-Ray Flux is rising due to a Flare in 2975. I didnt knew it can pick up things from behind the limb? But it makes sense. It picked up 2975's eruptions on the way off too. Link to comment Share on other sites More sharing options...
Solarflaretracker200 Posted April 14, 2022 Author Share Posted April 14, 2022 Something is sure going on Link to comment Share on other sites More sharing options...
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