Stereo DIFF- Image 🙂 

That's one giant sunspot... Though it's gonna be cloudy for me when the CMEs hit. 🙁

Also I gotta stop going in spaceweather.com for my solar news. All those ads on the side are a giveaway that it's not a great resource.

Just now, Bedreamon said:

That's one giant sunspot... Though it's gonna be cloudy for me when the CMEs hit. 🙁

Also I gotta stop going in spaceweather.com for my solar news. All those ads on the side are a giveaway that it's not a great resource.

It was a good resource a few years ago, and I also enjoyed using it together with this forum and website/app. no shame in using it, but *to me* its not worth it anymore.

when was the last R4 blackout?

1 minute ago, Sotiris Konstantis said:

when was the last R4 blackout?

2005

if you don't count Sep 2017 flares cuz they were X9 and X8 and then there were counted as X13 and X11 by swl 

12 minutes ago, MinYoongi said:

Stereo DIFF- Image 🙂 

where do you get these

Edited May 9, 20241 yr by tniickck

3 minutes ago, tniickck said:

2005

if you don't count Sep 2017 flares cuz they were X9 and X8 and then there were counted as X13 and X11 by swl 

where do you get these

On the stereo webpage! 

Go to latest images, scroll down to the Coronagraphs and then „diff“

1 minute ago, MinYoongi said:

On the stereo webpage! 

Go to latest images, scroll down to the Coronagraphs and then „diff“

tysm🥰

8 minutes ago, tniickck said:

2005

I'm confused. I recently saw on this site that the two September 2017 flares were upgraded to X10+. If I remember well, the first one was X9.3 and the second one X8.4. Now the first one is upgraded to X13.37 and the second one to X11.88, so doesn't this mean we got two R4s then? Indeed the date before these two that we got >X10 was in 2005. I'm not even sure how can a flare be upgraded but that is for another post.

 

Edit: It's actually 2006. On 2006/12/05 AR0930 produced an X12.95

Edited May 9, 20241 yr by Sotiris Konstantis

3 minutes ago, Sotiris Konstantis said:

I'm confused. I recently saw on this site that the two September 2017 flares were upgraded to X10+. If I remember well, the first one was X9.3 and the second one X8.4. Now the first one is upgraded to X13.37 and the second one to X11.88, so doesn't this mean we got two R4s then? Indeed the date before these two that we got >X10 was in 2005. I'm not even sure how can a flare be upgraded but that is for another post.

Short answer: Calibration of Goes

3 minutes ago, Sotiris Konstantis said:

I'm confused. I recently saw on this site that the two September 2017 flares were upgraded to X10+. If I remember well, the first one was X9.3 and the second one X8.4. Now the first one is upgraded to X13.37 and the second one to X11.88, so doesn't this mean we got two R4s then? Indeed the date before these two that we got >X10 was in 2005. I'm not even sure how can a flare be upgraded but that is for another post.

well, if you count these two then it's 2017. i meant primordial R4, not after upgrade

Just now, tniickck said:

well, if you count these two then it's 2017. i meant primordial R4, not after upgrade

 

1 minute ago, MinYoongi said:

Short answer: Calibration of Goes

Understood. Thank you.

9 minutes ago, Sotiris Konstantis said:

Understood. Thank you.

Your point is definitely valid though; in current terms both of those flares would have been registered as R4s.

9 minutes ago, Philalethes said:

Your point is definitely valid though; in current terms both of those flares would have been registered as R4s.

can you calculate the speed of the CME please? mine calculation is about 1300-1400 km/s

9 minutes ago, tniickck said:

can you calculate the speed of the CME please? mine calculation is about 1300-1400 km/s

How do you calculate it? @Jesterface23 is great in doing so but he prefers having a solid amount of data

39 minutes ago, MinYoongi said:

On the stereo webpage! 

Go to latest images, scroll down to the Coronagraphs and then „diff“

Why it shows sometimes 5 days old imagery and then suddenly it has updated to current day? Do i have a cookie problem or is this simply the state of these most influential space observations in this Anno Domini? 😅

Anyway safe to say this one is headed straight for us.

Edited May 9, 20241 yr by Tino Lehtonen

1 minute ago, Tino Lehtonen said:

Why it shows sometimes 5 days old imagery and then suddenly it has updated to current day? Do i have a cookie problem or is this simply the state of these most influential space observations in this Anno Domini? 😅

It's sadly the current state of Solar coronagraphy. SOHO is the oldest of the active satellites still in operation; I'm not sure exactly why the data drops out, but I'm sure it has its issues. Soon we'll be getting newer ones in place though, with GOES-U and SWFO-L1, the former of which will be relaying the data from geostationary or geosynchronous orbit rather than from L1, so it will hopefully be more continuous.

11 minutes ago, Philalethes said:

It's sadly the current state of Solar coronagraphy. SOHO is the oldest of the active satellites still in operation; I'm not sure exactly why the data drops out, but I'm sure it has its issues. Soon we'll be getting newer ones in place though, with GOES-U and SWFO-L1, the former of which will be relaying the data from geostationary or geosynchronous orbit rather than from L1, so it will hopefully be more continuous.

Also Proba-3 from ESA that should provide us with the best coronagraphs but for only some years. I hope they also have a backup occulter in the optics so it can still gove some data after corrections run out. Can't have too many eyes on this stuff. If that data is not made public/not great availability then I can be really salty as it's MY TAX MONEY!! 😂

Ps. ESA is way ahead of the curve in public data so looking forward for near-live coronagraphs, like EO browser for example. Free, realtime, in-browser and mobile friendly satellite imagery with custom channel mixing and basic corrections built in. Crazy stuff, use it all the time during spring and fall to assess ice situation.

Edited May 9, 20241 yr by Tino Lehtonen

4 hours ago, tniickck said:

can you calculate the speed of the CME please? mine calculation is about 1300-1400 km/s

Yea I got 1300 Km/s. With it heading right towards us the center of the cme definitely could be faster than that. My final guess on travel time is 35 hours which would mean it would catch up to and even push all the ones in front of it. 

Edited May 9, 20241 yr by Eric

Update: 

Sunspot number: 99 (up 37 compared to yesterday)

Size : 1300 (up 100 compared to yesterday)

 

This is 22nd largest sunspot (when it comes to size) from when the records of this site began. 1998 is the earliest one on that list, so at least 26 years.

99 is the 3rd largest sunspot (when it comes to sunspot number) we've seen on the same period. Only the well known Halloween 2003 spot had 108 and a sunspot in 2014 had 118 sunspot number. There was also a sunspot in 2004 which had also 99 sunspot number. 

 

This is a very complex group. Note that AR2673 from 2017 which produced 2 X10+ flares only had a sunspot number of 33 on it's peak day. 

Edited May 9, 20241 yr by Sotiris Konstantis

10 minutes ago, Eric said:

Yea I got 1300 Km/s. With it heading right towards us the center of the cme definitely could be faster than that. travel time should be under 35 (ima make an uneducated guess of 29) hours which would mean it would catch up to and even push all the ones in front of it. 

A TRIPLE CMEBURGER? That's it I'm heading to the bunker.

14 minutes ago, Eric said:

Yea I got 1300 Km/s. With it heading right towards us the center of the cme definitely could be faster than that. travel time should be under 35 (ima make an uneducated guess of 29) hours which would mean it would catch up to and even push all the ones in front of it. 

How did you calculate it?

4 minutes ago, MinYoongi said:

How did you calculate it?

I just saw how many solar diameters the boundary of the cme had gone in the first 68 minutes and and then used the diameter of the sun. Not sure if this is the most accurate approach but is at least a method.

7 minutes ago, Eric said:

I just saw how many solar diameters the boundary of the cme had gone in the first 68 minutes and and then used the diameter of the sun. Not sure if this is the most accurate approach but is at least a method.

i use the same

Looks like another incoming flare.

35 minutes ago, Eric said:

Yea I got 1300 Km/s. With it heading right towards us the center of the cme definitely could be faster than that. travel time should be under 35 (ima make an uneducated guess of 29) hours which would mean it would catch up to and even push all the ones in front of it. 

Actually I had the wrong launch time. Looks more like 1100 Km/s.