Jump to content

Recommended Posts

Did anyone know that peak flux levels above X15 are estimated? Plus there is dispute about what is the largest solar flare ever recorded since 1976? Is it the 2003/11/04 flare (X45), the 1991/06/01 flare (X17+), or the 1989/08/16 flare (X28.5+)?

Image of 1989/08/14 (5629 (β-γ-δ) is the big region at the southwestern limb/bottom right5643 (β-γ-δ) is the big region at the northeastern limb/top left), 2 big regions.


Image source: https://solarwww.mtk.nao.ac.jp/mitaka_solar/wl-fulldisk-photo/calendar/1989/jpg/wl19890814_001.jpg

Discuss anything about large solar flares here.

Edited by faster328
Link to comment
Share on other sites

45 minutes ago, Vancanneyt Sander said:

Saturation level of the GOES-13 to current satellite is X24,86 (with correction factor X17,4ish). GOES-7 (1987-1996) saturated above X11,6 (with correction factor!). Between GOES-7 and 13, no flares reached saturation level.
Any flare above saturation level is estimated.

What about before GOES-7? Multiple flares on the first half of June 1991 saturated the X-ray sensor.

Link to comment
Share on other sites

2 minutes ago, faster328 said:

What is GOES-7 X11.6 to GOES-16 now?

Removing the correction factor of 0.7, it would originally be a X8.12 flare. It may end up falling around X11, give or take a little bit.


Actually, it is an X11.6 saturated flare with the old data. So maybe it goes up to X15, give or take a little.

  • Like 1
  • Confused 1
Link to comment
Share on other sites

15 minutes ago, Aten said:

No you need to divide by 0.7 not multiply.

That was assuming  X11.6 was already divided by 0.7 provided by previous comments. But I double checked to see what the actual non-science data was and it actually was X11.6 with no corrections made yet.

  • Like 1
Link to comment
Share on other sites

So, the 6 June 1991 flares are all X15.06+. Which of the 6 flares saturated the GOES detector the longest (the longer the saturation, the larger the flare - this was proved by mathematical modelling for the 5 largest SC23 flares), being the largest flare of June 1991?

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you also agree to our Terms of Use and our Privacy Policy.